Sunday, September 21, 2008
Poems for Chem
Mom and dad held a job interview
I must know “Who will be my new nanny?”
My former nannies’ ended in a skew
The last one left us, shielding her fanny
I always wondered why they left in a hurry
As I brought out my inventions from my toy chest
Rubber band shooter, amputator, ball burry
Despite that Mom told them my best asset was my zest (Maybe that’s why the kept coming)
I love target practice with my nanny
But she had reflexes of a granny (You’re too slow for me Nanny Mc Granny)
I had the right ammo, calculations
Speed, power, accuracy and patience…(Writing down results of target practice)
“Oh, Danny! Your new nanny’s here!” chirped Louise (mom)
“I’ll turn you into a man of science” (What’s this lady going to do to me?)
That was the line her lips danced to, Science
Chemistry, she’s now the Mac’ to my Cheese (She’s a ninja/scientist/college student at UP)
What Science is to Me
Science, a tool invented by man
Cocoa beans, hot cocoa, chocolate
Brings more meaning to my everyday
Wheat, grain, flour, dough, pasta, spaghetti
Hey look, those guys have some chemistry
Bloo Berry; Bloo Cheese; Moe, Larry & Shemp
A combination so new, Darlin’
Mary Kate & Ashley; Chip & Dale; Drake & Josh
Time saver, life saver, our solution
Alarm clock, seatbelt, Biogesic
Science takes me to my destination
Car, boat, airplane, jet, helicopter
New fields of study born to the world
Architecture, Medicine, Physics
Pass it on to your mates, be a friend
Making science work for you today
Wednesday, September 10, 2008
Thursday, August 7, 2008
Mapa sa World History
A - Spain
B - France
C - Italy
D - Turkey
E - Lebanon
F - Greece
G - Saudi Arabia
H -India
I - Pacific Ocean
J -Atlantic Ocean
K - Indian Ocean
L - Mexico
M/N - Guatemala/Yucatan Peninsula
O - Iraq
P = Egypt
Q - Iran
R - Peru
Purple is the color for royalty XDDD
Fleur Delis - represents the royal house of the country where SPCP was originated XDD
Trigonometry comes from the terms 'Treis' meaning Triangle; 'Gonia' meaning Angle; 'Metron' meaning Measure.
Enjoy :D Study hard biSIXuals! XDD Last day na ng exams bkas XDDD please magbayad na yung mga Whis people :D
Thursday, July 24, 2008
Chemistry 1st Qtr July 23-24
Nature of light
Christian Huygen (1629-1695)
-stated that light, like sound, is a wave motion
***
His idea met many opposite
***
> Sir Isaac Newton (1647-1727)
- one of the GIANTS in science who opposed the idea [lyt doz nut trabel n wabe mosyon >:( ]
- formulated his own particle theory of light
Isaac's Theory of Light :3
Light is a very small particle which travels in straight lines.
(Newtonian Theory of the Nature of Light)
> Maxwell (1864)
- predicted that an alternating current in a circuit would radiate energy in the form of ELECTROMAGNETIC waves travelling through vacuum at the speed of light
> Heinrich Hertz
- did a demo thru an experiment 'the electromagnetic nature of light' to confirm Maxwell's interpretation
Classical Idea:
I. light is a WAVE
nature of light
II. Quantum Nature of Light
Max Planck (1858-1947)
- radiation energy is not continuous
- occurs in PACKETS or PIECES
PACKETS - Quanta
PIECES - Quanta
Quanta Hypothesis:
- thought light was a particle
Photon - quantum of electromagnetic radiation
( the higher the energy the shorter the wave :D)
Albert Einstein
- applied the photon model of light to explain the PHOTOELECTRIC EFFECT
- won the Nobel Prize for PHYSICS
DUALISM in Nature
behaviour of Light
1. Wave
2. Particle
each can explain one set of phenomena but is in compatible w/ the other set.
Louis de Broglie (1892-1987)
- proposed a dualistic nature of light to explain its behaviour
- to there is a relationship between frequency & energy of photons w/ the wave nature of radiations
- correlate the motion of each particle to a certain wave characterizes its wave properties
- won him a Nobel Prize
BOHR
- combined Rutherford's nuclear atom, Planck's quantum nature, Maxwell's wave model & Newton's Lay of motion
- formed 4 postulates
Postulates:
1. A hydrogen atom consists of a nucleus containing a proton & an electron
2. Only certain orbits are permitted
3. Energy of the e- in a given orbit is fined. As long as the electron stays in that orbit, it neither absorbs nor radiates energy. (stationary state/ground)
4. Electron may move from one stationary state to another (excited state x 3) to do so, it must absorb or emit a quantity of energy
Energy Levels in an Atom
Bohr proposed the energy levels based from the idea of Bohr who proposed that the movement of e- is analogous to the planets orbiting around the sun.
- orbits-> energy level
MAIN ENERGY LEVEL/SHELL
-> the orbits where the e-'s are located
n= 1,2,3,4,etc...
-> compared to a building, the nucleus being the basement and the high levels are the different shells :D
-> each level being greater than the previous
SUBSHELL/SUBLEVEL (s,p,d,f)
-> although a number of e-s may be found in the same main energy level, they may be found in different sublevels
Main Energy Level 1 is found in Subshell type 1s
MEL = 2 : ST = 2s,2p
MEL = 3 : ST = 3s, 3p, 3d
MEL = 4 : ST = 4s, 4p, 4d, 4f
ENERGY LEVELS IN AN ATOM
# of sublevels = assigned nos. for the main energy level
ORBITALS
-> region around the nucleus in which e-s will most likely be found
- rooms for electrons
- 1 orbital can only accommodate a max. number of 2 electrons
max. # of e-'s that can = 2n^2
occupy a level/shell
h=main energy level
How many electrons can occupy the 9th Main energy level?
2n^2 = 2(9)^2 = 2(81) = 162 electrons can occupy the 9th Main energy level
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
JULY 24
PICTURING THE ELECTRON
- ground state configuration
(How electrons arrange/themselves in atoms)
WAY TO DESCRIBE THE ELECTRON DISTRIBUTION :D
1. Orbital Energy Diagram (OED)
2. Orbital Diagram Notation (ODN)
3. Electron Configuration (EC)
4. Nobel Gas Abbreviation
5. Shell Configuration
~~~~~****~~~~~
1. OED
-uses boxes and arrows and breaks down each subshell into individual ORBITALS and ENERGY
3 PRINCIPLES in filling up the ORBITALS
* Aufbau Principle*
- electrons are added one at a time starting at the orbital w/ the LOWEST energy (1s)
*Pauli's Exclusion Principle
- an orbital can hold a maximum of 2 electrons...
The up arrow represents the direction: clockwise; the down arrow is counter clockwise.
*Hund's Rule of Multiplicity
- electrons entering a sublevel containing more than one orbital will be spread out with their spins in the SAME direction so that electrons are distributed singly before they are paired.
Practice :)
show the orbital energy of diagram of F(z=9)
~~~~~****~~~~~
2. ODN
- uses boxes & arrows and breaks down each subshell into ORBITALS
- similar to OED except that the direction of increasing energy is from left to right
ex.
show the orbital diagram of NA (z=11)
Practice
He (z=2)
P(z=15)
O(z=8)
Cl(z=17)
N (z=7)
F(z=9)
S(z=16)
Rb(z=37)
~~~~~****~~~~~
3. EC
- uses letters and nos. & denotes only the TOTAL nos. of electrons in each subshell
2p^3
2 - principle energy level
p - represents the sublevel
3 - total nos. of electrons in sublevel
ex. Write the electron configuration of Na (z=11)
White the full EC of each of the ff:
He(z=2)
S(z=16)
P(z=15)
N(z=7)
O(z=8)
Cl(z=17)
~~~~~****~~~~~
Cr (z=24)
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^4
4s^2 -> 4s^1
3d^4 -> 3d^5
Cu (z=29)
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^9
4s^2 -> 4s^1
3d^9 -> 3d^10
REASON
STABILITY:
Filled Orbital > Half-filled Orbital > Partially filled Orbital
Types of Electrons
1. Valence electrons (v.e.)
- e-'s in the outermost principal energy level/shell
- ones involved in the chemical reactions
2. CORe elctrons (c. e.)
- e-'s that don't participate in chemical reactions
Noble Gas Abbreviation
- shortcut way of writing....
Wednesday, July 23, 2008
World History June 23, 2008 1st Qtr
Hittites
> Indo-Europeans from Anatolia (rich in iron)
> conquered Babylon but didn't destroy it
1185 BC - destroyed by the Sea People
Information: Capital at Hattusas (Hittite City)
Misconceptions:
>Superiority due to Indo-European descend
> Monopoly of Iron
Kassites
> Non-semitic people who occupied Babylon
> Integreation into Babylonian culture
Assyrians -> hilly
> Semites (Assur) - never threatened by salinization -N. Tigris
Tiglath Pileser I fear & fright (Nineveh)
Tiglath Pileser III - conquest (loot, stole the loot)
>transformed army
>religious & military ideology (Ashur)
>centralized administration
>popular participation
>terror to evoke fear
* Asur - god - N. Tigris
Hills
Assyrians -> disunited (civil war)-> capital (unified) in Nineveh
Sannacherib - library @ Nineveh, aqueducts 200s, destroyed Babylon - crazy zoos
Hittites
Why'd Babylon fall to Hittites?
1. Salinization
2. Weak Alliances
3. New War Tech
Esarhaddon - rebuilt Babylon
Fall: (612 BC) Chaldean & Medes Alliances
Assurbanipal
Nebuchadnezzar (fearful) (605-562 BC) - destroyed Jerusalem (Babylonian Exile) 586 BC
-> Tower of Babel (dedicated to God: Marduk/Elil), Hanging Gardens
539 BC - Cyrus of Persia -> Astrology (movement)
Hebrew
Abraham (worshipped El) from Mesopotamia (1900 BC)-> Canaan (1500 BC)
Joshua - Judges - Kings
> N: Israel (Samaria): 722 BC Assyrians
> S: Judah (Jerusalem): 586 BC Babylon
539 BC - Cyrus (Persian)
520-516 - Temple
332 BC - Alexander the Great
186 BC - Maccabean revolt
63 BC - Roman Occupation
70 - AD - Destruction of the Temple/Diaspora
-> Judaism
-> Deutoronomic Code
-> Literature (Old Testament)
-> Polytheism
-> Monolatry (Transcendental Theology)
-> Prophetic Revolution
-> Post - Exile/Eschatology
Abraham
- leader of the tribe in Mesopotamia
- moved from UR to Canaan
- loyal top god: EL
- has other children (insignificant)
Haggar/Haggai - helper/katulong ni Abraham
Their child: Ishmael (fathered by Abraham) - came fromt he Arabic people
Haggar and Ishmael were exiled to roam the desert
Sarah
- Abraham's wife
- (God: you will conceive a child) Isaac
IsaacxRebeccaxRachel
Sons of Isaac: Esau, Jacob
Jacob = Israel, inherited the birth right of Isaac
Jacob's song: Joseph
Moses
- freedom
- led people to the Exodus
- Sinai
- 10 commandments
#####################################################################################
Judges -> wise men
> prepared people for war
> led Israelites to Canaanites (occupied Philistines)
Samuel
-> one of the judges (Saul, who committed suicide)
-> designated the 1st King of Israel
-> designated David as 2nd King
El = Yahweh
Unified Kingdom
N. Israel - sent to Lebanon
Solomon
.wisest man of all.
.compromised w/ other kingdoms.
.many wives.
."Jerusalem" - capital (no rish resources)
.divided the kingdom - when he died
N & S kingdoms
North Kingdom - Israel
Capital: Samarian:
- intermarried other people
- impure-> Assyrians
South Kingdom - Judah
Capital: Jerusalem
- conquered by Babylonians
(Nebuchadnezzer) -> Babylonian exile/captivity
*************************************************************************************
Temple - destroyed by Babylonians
Alexander the Great conquered everything
Maccabean Revolt
-> Epiphanes Antiochus
- desicrated the temple
people = angry :D
(disrespected Judas Maccabas)
Romans = Roman Occupation
Legacies of Hebrew people
> Religion = Judaism
-> 1st among the monotheistic religions
Judaism - El = Yahweh (only god)
- transcendental
- god didn't operate w/ the nature
- Prophetic Revolution
* many prophets
- speaks in behalf of somebody/ god
....
live good lives
-> Eschatology
. started to believe in a Messiah = Savior Jesus
Phoenicians (Lebanon people)
- traders - Seamen -> port city: Carthage
- "sharers & carriers of Civilization
1) Cedar (wood)
vast forests
2) Export of glass
3) Export of purple dye
Cities of Phoenicians: -Tyre, Sidon
-Alphabet :D
Lydians (coins)
- adaptation of the coin
Rich as Croessus (man of many coins)
coin - made of precious metal
Persians (Iran)
- occupied parts of Mesopotamia
3 prominent leaders:
1) Cyrus
- conquered Babylonians
- built an empire that covers the near east up to Egypt
2) Darius
- extended it to India
- didn't occupy Greece
3) Xerxes
- didn't occupy Greece (he too big :)
Capital:
Persepolis
- where he governed the vast empire
- diplomatic
We owe them:
1) efficient administration
- deviced several methods
- postal system (Royal Road)
- 20 provinces - each w/ governor by the audited 'ears' & 'eyes'
Standards (common units) - weight, measurement, language
-> official Aramaic - language of Jesus Christ
2) religion: Zoroastrianism
prophet: Zoro Aster
god: Ahura Mazda (god of Light) vs. Ahriman (God of Darkness)
-> Holy Book: Zend - Avesta
- live ethical good lives
Friday, July 18, 2008
Physical Education III July 14, 2008 1st Qtr
1) All games should be played in two out three sets or three out of five sets
2) There are six active players inside the court
3) The team may decided to have/enlist a libero in their entry form the Libero should have uniform different from the players
A. The LIBERO is restricted to perform as a backplayer (1,6,5) and has no right at all to complete an attack hit when the ball is above the height of the top of the net
4) Rally point scoring system - when one receiving team winning a rally scores a point when the receiving team wins a rally, the team has the right to serve and its players rotate one position clockwise.
5) Playing formula - a set (except the deciding 5th set) is won by the team which first scored 25 points with a minimum lead of 2 points. In the case of a 24-24 tie, play is continued until a 2 point lead is achieved. The 5th set is still played to 15 points.
6) During set 1-4, there are 2 'technical-timeouts' per set, each lasting 90 seconds. They are applied automatically when the leading team first reaches 8 points and 16 points.
7) The server must hit the ball within 8 seconds after the 1st referee whistles.
8) For misconduct behavior - the opponent scored 1 point and takes the right to serve
Yellow card - warning
Red card - expulsion
Yellow & Red cards - disqualification
9) A team is allowed to hit the ball three (3) times only and a player is not allowed to hit the ball twice consecutively
OFFICIALS of the GAME
1) First Referee (standing on a referee's stand)
> has authority over all officials
> directs the match from the start until the end
> His decisions are final
> performs the coin toss with team captains
> has the right to sanction misconducts & delays
2) Second Referee/Umpire (Standing at the post on the opposite side and facing the 1st referee)
> should the 1st referee unable to continue his work, he may replace him
> he controls the number of time-out & substitutions
> He takes charge of the penetration into the opponent's court under the net (crossing the centerline)
3) Scorer (seated on the scorer's table)
> He keeps the official score sheet and cooperates with 2nd referee
> He records the numbers and names of the players, score, time-outs, substitutions, sanctions, warnings, & penalties
4) Linesmen (they stand at the corners of the court from the service area)
> they control the endlines and the sidelines
> they signal the ball 'IN' and 'OUT'
BASIC SKILLS
> overhead
> underhead serve
> forearm serve
> set
> jump set
> dig pass
> spike
> block
Christian Living III July 17, 2008 1st Qtr
Sacred Scriptures
Isaiah 29:13
Prayer - must be accompanied by the spirit of service, justice, and concern for the welfare of others.
What are the Basic Christian Prayers?
> Apostle's Creed
> Lord's Prayer
> Hail Mary
> Glory be
Where do you think these prayers came from?
BIBLE
What are the 2 kinds of prayer?
1 Spontaneous
2 Formula
1 Formula Prayer
> rooted in the Sacred Scriptures and the Tradition of the Church
> contains the basic doctrines of our faith
Church Teaching: CFC 1480
"Authentic prayer is always rooted in the heart, and related to the neighbor in loving compassion & service
The Eucharist is the highest form of prayer and worship to God.
FULL CONSCIOUS ACTIVE PARTICIPATION
Basic Elements of a Shared Meal
1. Coming Together
2. dialog
3. Sharing of food & drink
2 Spontaneous
> We use our own words
> comes from our heat
> it expresses freely what we want to say
> Pattern
A - adoration
C - contrition
T - thanksgiving
S - supplication
O - offering
Established Parts of the Mass
> Introductory Rite
> Liturgy of the Word
> Liturgy of the Eucharist
> Communion Rite
> Concluding Rite
VESSELS
CHALICE
- most sacred of all vessels
- the cup which holds the wine for consecration
- after consecration, it contains the precious BLOOD of JESUS
CIBORIUM
- used to hold the small hosts distributed for the communion of the faithful
- resembles the chalice, except it has cover
PATEN
- small plate on which the host is laid. It is made to fit the chalice
CRUETS (water & wine)
- are the vessels from which the acolyte pours water & wine into the chalice held by the celebrant
INCENSE (+incense boat)
- a perfume burned on certain occasions, as at high Mass and benediction
- symbol of prayer
MONSTRANCE or OSTENSORIUM
- the larger metal container used for exposition and benediction of the blessed Sacrament
MISSAL
- contains prayer, ceremonies
PYX
- container of big HOST
LINEN
CORPORAL
- the square of fine linen w/ a small cross worked int he center
PALL
- a small square piece of linen starched stiff, used to cover the chalice
PURIFICATOR
- an oblong piece of linen, folded thrice, placed over the chalice
- wipe the inside of the CHALICE before putting in the wine and after the ABLUTION; he also wipes his mouth with it after the ablution
VESTMENTS (stole, white, green, purple, red, black)
STOLE
- long silk band that fits around the neck and crossed on the breast of the priest
CHUSABLE
- upper most vestment worn by the celebrant at mass
AMICE
- a piece of white linen cloth within covers the priest's shoulders
ALB
- a white linen tunic which envelopes the priest's whole body
CINCTURE
- the chord that fastens the alb at the waist
MANIPLE
- a short narrow strip of cloth which hangs from the left arm
LITURGICAL COLORS
WHITE
- worn during Christmastide and Easter time, on the feasts of our Lord and the Blessed Virgin Mary, the Angels and Confessors
GREEN
- throughout the year,from the 14th January till the ever of Septuagesima Sunday, from Monday after Trinity Sunday till the eve of the 1st Sunday of Advent
RED
- used at Pentecost in commemoration of the descent of the Holy, in the form of tongues of fire
- used on the feasts of the Apostles and Martyrs, feasts commemorating the Passion of our Lord and the sacred relics
PURPLE
- worn during Advent and Lent, as well as on Rogation Days, on Ember months except those on Pentecost octave and on the 4 vigils of the feasts of the Assumption, St. John the Baptist, St. Pete and Paul and St. Lawrence
=====================================================================================
MAJOR PARTS of the MASS
INTRODUCTORY RITE
> entrance/ song anticipation
> greeting
> penitential rite
> kyrie, gloria
Opening Prayer
LITURGY OF THE WORD
> Readings
- 1st reading => Ordinary Time
- 2nd reading => New Time
- Gospel => Gospel (4)
> Responsorial Psalm
- allows us to use the words of scripture to respond to God's word to us
> Gospel Acclamation
> Homily
-living explanation of the world
- should be like a 'mini-skirt', short enough to be interesting, but long enough to cover the substance.
> Intercession (Prayers of the Faithful)
sequence: for the needs of the CHURCH, PUBLIC AUTHORITIES, and SALVATION of the WORLD, OPPRESSED by any NEED and LOCAL COMMUNITY
LITURGY of the EUCHARIST
> Preparation of GIFTS
> Prayer over the gifts
> Eucharistic Prayer
- Narrative of the Institution
- Anamnesis (memorial)
- Oblation (offertory)
- Communion Epiclesis
- Intercession
- Doxology
> Thanksgiving (Sanctus)
Consecratory Epiclesis
-> invocation for the HS
COMMUNION RITES
1. Our Father - a prayer for forgiveness
2. Rite of Peace
3. Breaking of thr Bread
a. Breaking of the Bread
b. Agnus Dei - an invocation to Christ
c. Commingling - dropping of a small particle form the bread to the chalice
4. Communion Prayer
a. Prayer before communion, showing of the host
b. Communion Prayer
c. Post - Communion Prayer
5. Concluding Rites
a. blessing
b. Solemn Dismissal
Missa - mass, other interpretation 'to send', 'to dismiss'
Purposes of the Mass
. adore God
. thank God
. ask for God's blessings
. ask God's pardon for our sins
Wednesday, July 9, 2008
World History July 8, 2008 1st Qtr
1. What continent is Egypt found in? AFRICA.
2. In the West of Egypt, you will find the SAHARA DESERT.
3. The river that runs through Egypt is the River NILE.
4. The source of the river Nile is LAKE VICTORIA of the country, UGANDA.
5. The King of Egypt is the PHAROAH.
6. The legendary king to unify the upper and lower Egypt is MENES.
7. The first pharoah to order construction of pyramids is ZOSER/DJOSER/SOSER.
8. The last King of Egypt, and fell to the Romans is CLEOPATRA.
9. To whom is dedicated the greatest pyramid of all is KHUFU.
10.Are there only 20 pyramids in Egypt? Yes or No? NO
11.The Old Kingdom is the TIME OF PYRAMIDS
12.During the Old Kingdom; only the pharoah is mummified. Yes or No? YES
13.East is to Life, the land of the dead is WEST.
14.Who are the foreign rulers of Egypt? HYKSOS
15.First powerful female pharoah is Hatshepsut
16.Heretic pharoah who tried to change the religion of Egyptians is AKHENATION and his god ATON.
17.Who is the young pharoah who replaced Akhenation is TUTANKHAMEN.
18.Who discovered his tomb? HOWARD CARTER
19.The Egyptian way of writing is HIEROGLYPHICS
20.Plant where paper comes from is reed.
21.Name of endearment to Egypt is GIFT of the NILE
22.Prime minister of Great Britain is GORDON BROWN
23.President of France is President NICOLAS SARKOZY
24.Eight members countries of the G8:
USA, UK, GERMANY, FRANCE, ITALY, JAPAN, CANADA, ITALY
25. Susilo Bambang Yudhoyono was elected president of Indonesia on September 20, 2004.
EGYPT - protected by the bodies of water and the Sahara desert
GEOGRAPHY:
AFRICA
EGYPT "GIFT OF THE NILE" (black silt)
N - Mediterranean Sea
E - Red Sea
W - Sahara Desert (Red Land) land of the dead
NILE 4000 km
Lake Victoria(Uganda), Blue Nile(Ethiopia), White Nile(Uganda)-3 sources of the NILE
Upper Egypt (S)- water passes through it first think strip of land
Lower Egypt (N)- fan shaped delta (paa ng chicken)
Ancient Season of Egypt
Akdet - Flooding - Inundation
Peret - Growth
Shemis- Drought (Harvest)
Tuesday, July 8, 2008
Chemistry July 8, 2008 1st Qtr
> A calculated answer can't be more precise than the measuring tool
> A calculated answer must watch at least precise measurement
> SF - needed for final answers from:
1. Adding/Subtracting
2. Multiplying/Dividing
EXACT NUMBERS in CALCULATION
1000 meters in a kilometre
60 seconds in a minutes
These numbers are examples of exact numbers. These are definite, not measurements. A definite has infinite numbers of significant digits & will NOT affect the significant digits in the final answer.
ADDING & SUBTRACTING
The answer has the same decimal paces as the measurements with the fewer/fewest decimal places.
25.2 (has 1 decimal place) + 1.34 (has 2 decimal places)= 26.54
answer: 26.5 (1 decimal place)
Try it Yourself!
246.213 ml + 79.91 ml + 8786.268 ml= 9112.391 ml
answer: 9112.39 ml
Multiplying & Dividing
When 2 measurements are multiplied (or divided), the answers should contain as many significant digits as the less precise measurements (lower number of significant figures)
eg. 3.06*1.4=4.3 (COPY the LEAST # of significant figures) in this case it's 1.4, which has 2 significant figures
Try it Yourself!
9000*8576=77,184,000
answer: 8*10^7
Rounding Off Numbers
> when the question asks you to estimate
> an answer is different to obtain
Scientific Notation
> way of expressing really big or small numbers
> often used in 'scientific' calculations where the analysis must be very precise
2 parts:
N * 10^x
x - integer, positive (+) or negative (-)
N - Mantissa >=1 & <10
To change standard form to scientific Notation
->
e.g. 5,673,098
5.673098*10^6
Exponent is + -> greater than 1
- -> less than 1
e.g. 289,800,000
2.898*10^9
e.g. 0.000567
5.67*10^-4
To change SN -> SF
e.g. 0.0059*10^5
590
+ -> move to the right
- -> move to the left
Monday, July 7, 2008
Geometry July 7, 2008 1st Qtr
Distance Postulate
> to every pair of different points there corresponds a unique positive real number.
definition of Distance Postulate:
the distance between two points is the number given by the Distance Postulate. If the points are P & Q, then the distance is denoted as PQ/QP.
The Ruler Postulate
The point of a line can be placed in correspondence with the real numbers such that:
1) to every point of the line there corresponds exactly one real number.
2) to every real number there corresponds exactly one point of the line, and
3) there distance between any two points is the absolute value of the difference of the corresponding real number
definition of Ruler Postulate:
any real number corresponding to a given point is called the coordinate of a point. The one-to-one correspondence between the points of a line and the set/real numbers is called a coordinate system.
Ruler Placement Postulate
given two points P & Q of a line, the coordinate system can be chosen such that the coordinate of P is zero & the coordinate of Q is positive. (assigning points)
Segment Construction Postulate
Let RD be a ray, & let X be a positive number. Then there is exactly one point P of RD such that RP=X
====================================================================
CONVEX SETS
> a set of convex if for any two points in A & B in it, the whole segment AB is also entirely in it. (should always be shaded)
Line Separation Postulate
> a point separates a line into two half lines, each of which is a convex set
Plane Separation Postulate
> a line separates a plane into two half-planes each of which is a convex set
Space Separation Postulate
> a plane separates space into two half-spaces each of which is a convex set
> union of two non collinear rays with a common endpoint
Angle Measurement Postulate
> to every angle there corresponds a unique positive real number between 0-180. This number is the degree measure of the angle
Angle Construction Postulate
> let H be half plane edge, AB. There is exactly one ray AC with B in H such that angle CAB has a given measure between 0-180.
DEFINITIONS:
Congruent Angles
> measures are equal
Angle Bisector
> ray bisects an angle if it divides the angle into two congruent parts
Angle Bisector Postulate
> every angle has exactly one bisector
Angle Addition Postulate
> if P is the interior of angle MAN, then m angle MAN=m angle PAM+m angle PAN
DEFINITIONS:
> two lines are perpendicular lines if they intersect to form right angles
> a line, ray, segment, or plane is the perpendicular bisector of a segment if it is perpendicular to the segment at its midpoint
Friday, July 4, 2008
English III 1st Qtr July 3, 2008
its, their, her, his, your, my, our
2. Descriptive (Qualitative)
color, shape, size, texture, physical attributes
3. Quantitative - numbers
three pens - Numerical
several friends - Indefinite
this house - Demonstrative
which bag - Interrogative
4. Determiners (the, an, a)
Geometry 1st Qtr July 3, 2008
The Basic Postulate
"every segment has exactly one midpoint"
Postulate #2 Points Postulate
A line contains infinite points
Postulate #3 Lines Postulate
For every two points there is exactly one line that contains both points
Postulate #4 Plane Postulate
Any 3 points lie in at least one plane
Any 3 non collinear points lie in exactly one plane
Postulate #5 Space Postulate
A space contains at least 4 non collinear points
Postulate #6 Flat Plane Postulate
If two points of a line lie in a plane, then the line lies in the same plane
Postulate #7 Plane Intersection Postulate
If two different planes intersect then their intersection is a line
Postulate #8 Distance Postulate
To every pair of different points there corresponds a unique positive real number
Definition:
The distance between two points is the number given by the Distance Postulate. If the points are P and Q, then the distance is demoted as PQ or QP
Postulate #9 The Ruler Postulate
The points of a line can be placed in correspondence with the real numbers such that to every...
> point of the line there corresponds exactly one real number
> number there corresponds exactly one point of the line; and the distance between any two points is the absolute value of the difference of the corresponding real number.
-> Any real number corresponding to a given point is called the coordinate of a point. The one to one correspondence between the point of a line and the set or real numbers is called a coordinate system
Postulate #10 The Ruler Placement Postulate
Given two points P and Q of a line, the coordinate system can be chosen such that the coordinate of P is zero and the coordinate of Q is positive
Postulate #11 Segment Construction Postulate
Let a RD be a ray, and let x be a positive number then there's exactly one point P of RP such that RP=x.
2.1 Theorem Line Intersection Theorem
If two different lines intersect, their intersection contains only one point
2.2 Line-Plane Intersection Theorem
If a line intersects a plane not containing it, then the intersection contains only one point.
2.3 Point-Line Plane Theorem
Given a line and a point not on the line there is exactly one plane containing both
2.4 Intersecting Lines Planes Theorem
Given two intersecting lines, there is exactly one plane containing both
Thursday, July 3, 2008
Chemistry July 3, 2008 1st Qtr
Scientific figures in measurement
*The numbers reported in a measurement are limited by the measuring tool
*Significant figures in a measurement include the known digits plus one estimated digit
Counting Significant Figures
38.15 cm -- 4
5-6 ft -- 2
All non zero digits in a measured number are significant
Heading Zeroes
0.008m -- 1
0.015607-- 8
Leading zeroes in decimal numbers are not significant
Sandwiched zeroes
50.8 mm -- 3
2001 minutes -- 4
Zeroes between non zero numbers are significant
Trailing zeroes without decimal
25,000 in -- 2
200 yr -- 1
Trailing zeroes in numbers without decimals are not significant if they are serving as place holders
Trailing zeroes with decimal
34.000 in -- 5
201.00 in -- 5
Trailing zeroes in numbers with decimals are significant
Significant numbers in calculations
-A calculated answer can't be more precise than the measuring tool
Tuesday, July 1, 2008
World History June 24, 2008 1st Qtr
cradle of Civilization - Iraq - Mesopotamia
Robert Braidwood:
> ample rain
> wild ancestors of domesticated flock
> edible plants
Importance of Settling
>aggricultural revolution
> need to have permanent settlements
> food sources shifted, scarcity of food
> child rearing
> Hassuna: houses, pots, aesthetic achievement
Mesopotamia 'between rivers'
Tigris - stronger current
Euphrates
> swamps, marshes
> weather: summer (hot because it's a desert), winter (strong stormy south wind), spring (flooded)
Ubaidians
> 1st inhabitants of Mesopotamia
> farmers, builders
> intermarrying of nomads of Semitic nomads of Syrian Desert and Arabian Peninsula
> offspring are Sumerians
Ubaidians x Semitic Nomads = Sumerians
STATE | KING |
kish -> Erech | ETANA -> Dumuzi, Gilgamesh |
Elamites (nomads) | |
Adab | Lugallannemmundu |
INTERMEDIATE - break, division, distortion | |
Lagash | Eannatum |
Umma | Lugalzaggesi -> |
Sargon of Kish, Akkadia Era |
COMPUTER III 1st Qtr July 1, 2008
> DOS (Disk Operating System) Base Program
PROMPT
-> directory
-> program files, accessories
[A, C, D, E, F]
> File Allocation Drive
Turbo C - symbols
Visual Basic - words
====================================================================
====================================================================
~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~*
" A good programmer is a good planner"
=> knows how to organize
PROGRAM => the instruction, output, presentation
PROGRAMMING => process
Algorithm - logical procedure ( logical)
Pseudocode - outline form (textual)
Flowchart - graphical representation, graphical of algorithm (Data Flow Diagram, Blueprint of the Program)
(Data Handling in Programming)
DATA TYPES:
Type of Information
> numeric (integer, float/double)
> alphanumeric data (number, character, string)
> date & time (day, month, year, hour, etc.)
> logical data (true, false)
NUMERIC
> numbers, whole, real
integer - whole numbers
float & double - numbers with fractional parts
ALPHANUMERIC
> numbers, alphabets, special characters
Number - numbers that can't be used in operations
Character - a single variable
String - combination of variables
DATE & TIME
> holds the day, month, year (date), hour, minute, and second (time)
LOGICAL DATA
2 values : TRUE (any value), FALSE (zero 0)
VARIABLE
> name chosen to represent an item/value
e.g. x = :P
CONSTANT
> never changes. DEFINITE
e.g. x = 5, formula, pi=3.1416
> identifiers
OPERATORS
> symbols that indicate the operation to be performed on the data
-> Arithmetic -> Relational -> Logical
UPEMDAS
U - Unary (+/-)
P - parenthesis
E - exponents (^ is caret)
M - multiplication
D - divide
A - addition
S - subtraction
- comparing 2 values
!=, <>
- determine if a condition is satisfied
AND - BOTH = TRUE
OR - 1/BOTH = TRUE
NOT - TRUE = FALSE, NOT - FALSE = TRUE
====================================================================
====================================================================
~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~**~~*
-> MACHINE LANGUAGE
natural language of the computer that generally consists of strings of numbers
(binary numbers -> 1,0 & bits)
-> ASSEMBLY LANGUAGE
programming language which uses mnemonic codes or abbreviations (a+b)
-> MIDDLE LEVEL LANGUAGE
uses instructions that are expressed in a slightly more readable form (getch, printf, scanf)
-> HIGH LEVEL LANGUAGE
uses English-like words/human-readable language (%-mod)
translates the whole program into machine language before executing the program, regardless of the syntax error (e.g. TC)
>INTERPRETER
translates a program, line by line into machine language and stops once an error has been encountered (e.g. VB)
Visual Basic
> high-level program language
> interpreter
> creates applications for WINDOWS
> introduces windows-based programming
VB Structure
> Programming in VB is done in a graphical environment
> Contains tools for testing and creating VB programs (Integrated Development Environment)
> event-driven Programming Language
> an operation is executed as the result of some kind of event
>Object - oriented
> application programs are created using different objects (pro-choice)
>Well-defined structure
>utilizes a form module to create objects (no form, no interface)
A VB Programming Object has:
-Properties
> characteristics of an object
Methods
> functions of an object that can be manipulated
Controls
> objects that can be placed on a form
Monday, June 30, 2008
Technology and Home Economics III 1st Qtr June 18, 2008
efficiency - system - organized - speed
effectiveness - result - output
Who is an entrepreneur?
> entrepreneur() n. A person who organizes, operates, and assumes the risk for a business venture (www.answers.com)
> originates from the French word, "entreprendre"which means "to undertake"
In a business contest, it means to start a business (www.quickmba.com)
> If someone/some people are born creative and talents, can creativity be developed?
Creativity can be developed in a person and improved in those who already have it. The Creative Process:
> it can be developed in many ways
> creative process do not always occur in the same order for every creative activity
PHASE I: BACKGROUND/KNOWLEDGE ACCUMULATION
PHASE II: INCUBATION PROCESS
PHASE III: THE IDEA EXPERIENCE
PHASE IV: EVALUATION & IMPLEMENTATION
PHASE I: BACKGROUND
> Prof. Reading and groups, discussion
> seminars and traveling
> files and references
> jotting notes
> curiosity
PHASE II: INCUBATION
> Allow the subconscious mind to work (sleep/do mindless activities/think of problems before sleeping)
PHASE III: IDEA PROCESS
> Bright Ideas - pops after incubation
> mistakes as only component of creativity
> Ideas - spring into minds - doing unrelated activities
> Daydream, hobbies, jotting notes, work breaks
PHASE IV: EVALUATION & IMPLEMENTATION
> Phase where successful entrepreneurs identify ideas that are practical, feasible and workable
>Requires great deal
discipline, courage, determination, perseverance, and confidence
Innovation and Entrepreneurial Activities
What is innovation?
It means by which the entrepreneur either creates new wealth-producing resources or endows existing resources with enhanced potential for creating wealth.
1. Invention
2. Extension
3. Duplication
4. Synthesis
1. Invention
> New products, services, or processes are created
> Novel or untried
e.g. airplanes - Wright Brothers; light bulb - Thomas Edison; Telephone - Alexander Graham Bell
2. Extension
> existing products, services, or processes are expanded
> a different application of current idea is tried
e.g. Ray Kroc - Mc Donald's, Nolan Bushnell - Atari, Kemmons Wilson - Holiday Inn
3. Duplication
> existing products and services are replicated
> own touch is added to improve/enhance the product
e.g. Lucy Goldstar- Personal Computer, Jollibee - fast food, Likha Papaya - whitening soap, Kalde-Kaldero, Kawakawali, aawitan Kita-Filipino restaurant
4. Synthesis
> existing concepts and factors are combined into a new formulation
> gathering of existing ideas/items
> finding ways to make them from a new use/application
e.g. shopwise * 3-1 printer * casio-wrist watches
Sources of Innovation
Make use of innovations to exploit rather than create change following are external and internal areas that serves as sources of innovation:
1. Unexpected occurrences
> unanticipated/unplanned
> success/failure
> prove to be major surprise
2. Incongruities
> results happen when there's a gap between expectation and reality
3. Process Needs
> demands innovation & answers particular need
e.g. manufacture health product, food, convenience, time-savers
3. Industry & Marketing Changes
> consumer attitudes, advancement in technology, industrial growth
> develop that cause consistent shifts in the market
e.g. Industrial sewing machines - RTW
5. Demographic Changes
> result of changes in population, age, education, geographic location, etc.
e.g. influx of trendy fads is caused by an increasing teenage population like cellular phones & personal computer
6. Changes in perception
> people's interpretation of facts and concepts
> intangible and meaningful
e.g. fitness craze, flawless skin, white skin
7. Knowledge
> based concepts
> invention
> inventions - products of new thinking, new methods and new knowledge
> longest time - initiation and market implementation
> testing & modification to ensure success
Geometry June 25, 2008 1st Qtr
> described or represented
> dealt with through their properties which are taken up as postulates
1) Point
> no dimension
> represented by a dot
> named by a capital letter
2) Line
> set of points extending infinitely in both directions
> length but no width or thickness
> arrowheads
> named using 2 points at each end or a small letter at one end or in the middle
Types of Lines:
2.1) Line Segment
> set of points in between 2 points
> named by endpoints
2.2) Ray
> one endpoint and extends indefinitely in one direction
> named by two points
2.3) Opposite Rays
> 2 rays with a common endpoint contained on the same line going in opposite directions
2.4) Half Lines
> union of all points of a line on one side of a point excluding the point
3) Plane
> infinite length and width but no thickness
> flat surface
> represented by 4-sided figures
> named by 3 non collinear points or capital letter on the corner
POSTULATES
>assumed to be true
> statements accepted with proof
THEOREMS
> statements that can be
proven using preceding terms, definitions, postulates, and possibly previously proven theorems
SPACE: Set of all Points
Congruent Segments:
> same length
Collinear
> same line
Non collinear
> not same line
Coplanar
> same plane
>within the plane
Non coplanar
> not same plane
> outside the plane
MIDPOINT
Divide a segment into 2 congruent parts
BETWEENESS
H-E-Y --> HE+EY=HY
BISECTOR
> midpoint of a segment; line, half line, ray, segment, plane passing through the midpoint
Trigonometry 1st Qtr June 23, 2008
standard method of measurement and conversion
1. Revolution System
> depend on rotation on the axis
> old method
2. Sexagesimal System
> the basic unit is degree ( 1 degree)
3. Radian System
> radium
> radius of a circle
> unit less number
CONVERSION
> degree to radian, the conversion factor is pi/180.
> radian to degree, the conversion factor is 180/pi.
i.e.
1. express 3pi/5 to degree = 3pi/5 * 180/pi = 108 degrees
2. express 255 degrees to radian = 255 degrees * pi/180 = 51pi/36 = 17pi/12
FRACTIONAL DEGREE
1. DD (Decimal Degree)
2. DMS (Degree, Minutes, Seconds)
CONVERSION FACTOR
1 degree = 60 minutes
1 minute = 60 seconds
FBI
(Fabulous Basic Information)
What is a triangle?
> 3 sided polygon that have 3 interior angles
> the sum of the interior angles is always 180 degrees
> used CAPITAL letter for vertices, small letters for legs
Classifications of triangles:
> Acute triangles can be scalene and equilateral, but not an isoceles.
> Obtuse triangles can be scalene and isoceles, but not equilateral.
> Right triangles can be scalene and isoceles, but not equilateral.
Isoceles - 2 sides equal
Scalene - no equal sides
Equilateral - all 3 sides equal
TRIGONOMETRIC RATIO
SOH sin X = opposite/hypotenuse sine function
CAH cos X = adjacent/hypotenuse cosine function
TOA tan X = opposite/adjacent tangent function
To determine the hypotenuse
> longest leg
> opposite of the 90 degree vertex
TRIGONOMETRIC FUNCTIONS of a RIGHT TRIANGLE
sine (sin) -> cosecant (csc)
cosine (cos) -> secant (sec)
tangent (tan) -> cotangent (cot)
QUOTIENT IDENTITY
tan = identical to sin/cos
PYTHAGOREAN THEOREM
> sum of the square of the legs is equal to the square of the longest side, the hypotenuse
Chemistry June 25, 2008 1st Qtr
> place value of the smallest line represent in the calibration
Sensitivity
> place value after accuracy
Uncertainty in Measurement
Making Measurements
> certain/exact digits and one uncertain digit
Reading Calibrations
> lines/numbers on your measuring device
Metric Calibration
> easiest to use and understand
> pattern after the METRIC system of measurements
> because the segments are divided into 10.
Find the accuracy and sensitivity of the following measurements:
14.3 mg
accuracy = ones
sensitivity = tenths
29.0
accuracy = ones
sensitivity = tenths
1 ml
accuracy = ones
sensitivity = tenths
0.185
accuracy = hundredths
sensitivity = thousandths
CHEMISTRY and MEASUREMENT
> measuring, calculating characteristics of materials : quantitative
Reading Calibrations
measuring devices
> refers to lines and numbers
Metric Calibration
> each segment is divided into ten equal parts
> metric system of measurements
(multiples of ten)
Chemistry June 25, 2008 1st Qtr
1. Francisco Quisumbing
> invented Quink, a trademark ink, which is used in Parker pens.
2. Julian Banzon
> research on methods on alternative and cheap fuel from sugarcane
3. Pinky Tobiano
> owner of Qualibet testing services, which is food and water testing facility
4. Alfredo Santos
> has won many awards because of his study on medicinal plants and natural plants
5. Dr. Raquel Fortum
> 1st Filipino Chemist
> 'Mother of Forensic Pathology'
Physical Education III 1st Qtr June 30, 2008
> capacity of each individual to accomplish daily task with alertness and vigor
BODY COMPOSITION
> ratio of fat to lean body mass
FLEXIBILITY
> range of movement of the joints and muscles
CARDIO-VASCULAR ENDURANCE
> heart and lungs to function efficiently without breaking
MUSCULAR ENDURANCE
> capacity of muscular
MUSCULAR STRENGTH
> mount of force exerted by a muscle/group of muscles
EACTION TIME
> amount of time it take to respond
BALANCE
> ability to stand still
AGILITY
> ability to change direction quickly
POWER
>ability to perform an action with strength and speed
COORDINATION
> sequence of movements accurately and rhythmically
====================================================================
====================================================================
> YMCA (Young Men's Christian Association)
> invented in the year 1895
> Holyoke, Massachusetts
tennis * handball * basketball = volleyball
Volley ball was first known as 'Mintonette'
At first...
> students of Mr. William G. Morgan asked him to create a game that has less physical contact unlike basket ball for the older students
> he used the tennis net and raised it 2-6 ft. high
> instead of the racket, players used their bare hands
> for the ball, a basket ball was used but found it too heavy
> then they used the bladder of the basket ball, but found it too slow
Alfred T. Halstead - gave the name 'Volley Ball' to Mintonette
Volley Ball Time line
1900 - The Spalding brothers designed a special ball for volley ball
1910 - Elwood Brown, YMCA director in Manila, introduced the game to the Philippines
1916 - set and spike developed in the Philippines
1947 - FIVB (Federation Internationale de Volley Ball) was found in Paris
1964 - Volleyball was introduced to the Olympic Games in Tokyo, Japan
Court
> 9 X 18, W x L
> centerline
> attack area
> attack line
> side line
> end line
> service area
Players = 6 players per team
1 - right back
5 - left back
6 - middle center
2 - right front
3 - middle front setter
4 - left front
NET
For women : 2.24 m is the height of the net for women
For men: 2.43 m is the height of the net for men
BALL
260 - 280 grams is the weight of the ball
65 - 67 cm is the circumference of the ball
Christian Living III 1st Qtr June 30, 2008
- humble
- God-fearing
- preacher
- martyr
- converted Christian
- Saul
- determined
- saint
Sacred Scriptures
Acts 9:1-22
-Tarsus, free city the metropolis of the Roman province of Cilicia (Acts 22:3)
SAUL
-zealous Jewish young man
Journey of St. Paul
> Ananais - regained St. Paul's vision
> Baptized St. Paul
Church Teaching CFC 1789
CONVERSION
> whole like-long process
> moving toward closer union with Christ
> moves us among from sinful ways and habits
> change of heart
> metanoia
> change of lifestyle
> transformation
'As a life-long call to repentance and turning back to God, conversion is a constant theme throughout the Bible.'
RoCoCoGalEphPhilColTheTheTimTimTit(PhilHeb)
The 12 letters, also called Epistles, which are ascribed to the apostle Paul, are included in the Holy Scriptures in the New Testament.
RC2GEPCT5
Saturday, June 28, 2008
Christian Living III 1st Qtr June 28, 2008
Benediction Veil
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(a modern Cope, the bishop of Bruges)
Cope (KOPE)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(Seminarian vested in a pleated surplice with lace inserts, holding a thurible.)
Surplice (SIR-plis)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Chasuble (CHAZ-uh-buhl)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Stole
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(10ftLONG ALB ROPE CINCTURE CORD Catholic Priest Vestmet)
Cincture (SINGK-sure)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Purificator
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(Pope John Paul II vested in the pallium)
Pall (PAHL)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(Economical, disposable communion cups fit standard trays. Clarity of real glass with no breakage. Similar in style to regular crystal glasses. 1 3/8" high. )
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(decanter on table fireplace in backround)
Decanter or Flagon (FLAG-un)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
( Silver Baroque Ciborium, Church of St. Pter, Ayerbe, 18th century)
Ciborium (si-BORE-ee-um)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(cross, patent, bread, chalice left to right)
Paten (PAT-en)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(Medieval Chalice)
Chalice (CHAL-is)
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
(Sacramentary of St. Gerome)
Sacramentary
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Lectionary
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Hymnal/Missalette
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
( The Book of Kells, c. 800, showing the lavishly decorated text that opens the Gospel of John.)
Book of the Gospel
~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~**~
Physical Education June 28, 2008 1st Qtr
History of volleyball
Origin of volleyball
On February 9, 1895, in Holyoke, Massachusetts (USA), William G. Morgan, a YMCA physical education director, created a new game called Mintonette as a pastime to be played preferably indoors and by any number of players. The game took some of its characteristics from tennis and handball. Another indoor sport, basketball, was catching on in the area, having been invented just ten miles (sixteen kilometers) away in the city of Springfield, Massachusetts only four years before. Mintonette (as volleyball was then known) was designed to be an indoor sport less rough than basketball for older members of the YMCA, while still requiring a bit of athletic effort.
The first rules, written down by William G. Morgan, called for a net 6 feet 6 inches (1.98 meters) high, a 25 × 50 foot (7.6 × 15.2 meter) court, and any number of players. A match was composed of nine innings with three serves for each team in each inning, and no limit to the number of ball contacts for each team before sending the ball to the opponents’ court. In case of a serving error, a second try was allowed. Hitting the ball into the net was considered a foul (with loss of the point or a side-out)—except in the case of the first-try serve.
After an observer, Alfred Halstead, noticed the volleying nature of the game at its first exhibition match in 1896, played at the Springfield YMCA, the game quickly became known as volleyball (it was originally spelled as two words: "volley ball"). Volleyball rules were slightly modified by the Springfield YMCA and the game spread around the country to other YMCA locations.[3][4]
Refinements and later developments
The first official ball used in volleyball is disputed; some sources say that Spalding created the first official ball in 1896, while others claim it was created in 1900.[5][6][7] The rules have evolved over time; by 1916, the skill and power of the set and spike had been introduced, and four years later a "three hits" rule and back row hitting guidelines were established. In 1917, the game was changed from 21 to 15 points. In 1919, about 16,000 volleyballs were distributed by the American Expeditionary Forces to their troops and allies, which sparked the growth of volleyball in new countries.[5]
The first country outside the
Beach volleyball, a variation of the game played on sand and with only two players per team, became a FIVB-endorsed variation in 1987 and was added to the Olympic program at the 1996 Summer Olympics.[5][8]
Volleyball in the Olympics
The history of Olympic volleyball can be traced back to the 1924 Summer Olympics in Paris, where volleyball was played as part of an American sports demonstration event.[9] After the foundation of FIVB and some continental confederations, it began to be considered for official inclusion. In 1957, a special tournament was held at the 53rd IOC session in Sofia, Bulgaria to support such request. The competition was a success, and the sport was officially included in the program for the 1964 Summer Olympics.[5]
The Olympic volleyball tournament was originally a simple competition, whose format paralleled the one still employed in the World Cup: all teams played against each other team and then were ranked by wins, set average, and point average. One disadvantage of this round-robin system is that medal winners could be determined before the end of the games, making the audience lose interest in the outcome of the remaining matches. To cope with this situation, the competition was split into two phases with the addition of a "final round" elimination tournament consisting of quarterfinals, semifinals, and finals matches in 1972. The number of teams involved in the Olympic tournament has grown steadily since 1964. Since 1996, both men's and women's events count twelve participant nations. Each of the five continental volleyball confederations has at least one affiliated national federation involved in the Olympic Games.
The U.S.S.R. won men's gold in both 1964 and 1968. After taking bronze in 1964 and silver in 1968, Japan finally won the gold for men's volleyball in 1972. Women's gold went to Japan in 1964 and again in 1976. That year, the introduction of a new offensive skill, the backrow attack, allowed Poland to win the men's competition over the Soviets in a very tight five-set match. Since the strongest teams in men's volleyball at the time belonged to the Eastern Bloc, the American-led boycott of the 1980 Summer Olympics did not have as great an effect on these events as it had on the women's. The U.S.S.R. collected their third Olympic Gold Medal in men's volleyball with a 3-1 victory over Bulgaria (the Soviet women won that year as well, their third gold as well). With the U.S.S.R. boycotting the 1984 Olympic Games in Los Angeles, the U.S. was able to sweep Brazil in the finals for the men's gold medal. Italy won its first medal (bronze in the men's competition) in 1984, foreshadowing a rise in prominence for their volleyball teams.
At the 1988 Games, Karch Kiraly and Steve Timmons led the U.S. men's team to a second straight gold medal. In 1992, underrated Brazil upset favourites C.I.S., Netherlands, and Italy in the men's competition for the country's first Olympic gold medal. Runner-up Netherlands, men's silver medalist in 1992, came back under team leaders Ron Zwerver and Olof van der Meulen in the 1996 Games for a five-set win over Italy. A men's bronze medalist in 1996, Serbia and Montenegro (playing in 1996 and 2000 as the Federal Republic of Yugoslavia) beat Russia in the gold medal match in 2000. In 2004, Brazil won its second men's volleyball gold medal beating Italy in the finals.
Rules of the game
Volleyball court
The court
The game is played on a volleyball court 18 meters long and 9 meters wide, divided into two 9 x 9 meter halves by a one-meter wide net placed so that the top of the net is 2.43 meters above the center of the court for men's competition, and 2.24 meters for women's competition (these heights are varied for veterans and junior competitions).
There is a line 3 meters from and parallel to the net in each team court which is considered the "attack line". This "3 meter" (or 10 foot) line divides the court into "back row" and "front row" areas. These are in turn divided into 3 areas each: these are numbered as follows, starting from area "1", which is the position of the serving player:
After a team gains the serve (also known as siding out), its members must rotate in a clockwise direction, with the player previously in area "2" moving to area "1" and so on, with the player from area "1" moving to area "6" (see also the Errors and faults section).
The team courts are surrounded by an area called the free zone which is a minimum of 3 meters wide and which the players may enter and play within after the service of the ball.[10] All lines denoting the boundaries of the team court and the attack zone are drawn or painted within the dimensions of the area and are therefore a part of the court or zone. If a ball comes in contact with the line, the ball is considered to be "in". An antenna is placed on each side of the net perpendicular to the sideline and is a vertical extension of the side boundary of the court. A ball passing over the net must pass completely between the antennae (or their theoretical extensions to the ceiling) without contacting them.
The ball
Main article: Volleyball (ball)
The volleyball is made of leather or synthetic leather and inflated with compressed air. According to FIVB regulations:
· Its circumference is 65-67 cm and its weight is 260-280 g.
· Its inside pressure shall be 0.30 to 0.325 kg/cm2 (4.26 to 4.61 psi) (294.3 to 318.82 mbar or hPa).[11]
Game play
Each team consists of six players. To get play started, a team is chosen to serve by coin toss. A player from the serving team (the server) throws the ball into the air and attempts to hit the ball so it passes over the net on a course such that it will land in the opposing team's court (the serve). The opposing team must use a combination of no more than three contacts with the volleyball to return the ball to the opponent's side of the net. These contacts usually consist first of the bump or pass so that the ball's trajectory is aimed towards the player designated as the setter; second of the set (usually an over-hand pass using wrists to push finger-tips at the ball) by the setter so that the ball's trajectory is aimed towards a spot where one of the players designated as an attacker can hit it, and third by the attacker who spikes (jumping, raising one arm above the head and hitting the ball so it will move quickly down to the ground on the opponent's court) to return the ball over the net. The team with possession of the ball that is trying to attack the ball as described is said to be on offense.
The team on defense attempts to prevent the attacker from directing the ball into their court: players at the net jump and reach above the top (and if possible, across the plane) of the net in order to block the attacked ball. If the ball is hit around, above, or through the block, the defensive players arranged in the rest of the court attempt to control the ball with a dig (usually a fore-arm pass of a hard-driven ball). After a successful dig, the team transitions to offense.
The game continues in this manner, rallying back and forth, until the ball touches the court within the boundaries or until an error is made.
Errors and faults
- The ball lands out of the court, in the same court as the team that touched it last, under the net to the opposing team's court, or the ball touches the net "antennas." The ball also may not pass over or outside the antennas even if it lands in the opponents' court.1
- The ball is touched more than three times before being returned to the other team's court.2
- The same player touches the ball twice in succession.3
- A player "lifts" or "carries" the ball (the ball remains in contact with the player's body for too long).
- A player touches the net with any part of his or her body or clothing while making a play on the ball (with the exception of the hair).
- The players of one team do not manage to touch the ball before the ball lands in their half of the court.
- A back-row player spikes the ball while it is completely above the top of the net, unless he or she jumped from behind the attack line (the player is, however, allowed to land in front of the attack line).
- A back-row player participates in a completed block of the opposing team's attack (completed means at least one blocker touched the ball).
- The libero, a defensive player who can only play in the back row, attempts a block or makes an "attacking hit", defined as any shot struck while the ball is entirely above the top of the net.
- A player completes an attack hit from higher than the top of the net when the ball is coming from an overhand finger pass (set) by a libero in the front zone.
- A player is not in the correct position at the moment of serve, or serves out of turn. This type of foul is related to the position currently occupied by the players (see the table in the Equipment section). When ball is served, players can place themselves freely on the field (e.g. a "back-row" player can be close to the net) so long as they obey the following rules: The area "1" player must be behind the area "2" player and to the right of the area "6" player. The area "6" player must be behind area "3" player, to the left of area "1" player and to the right of area "5". The area "5" player must be behind the area "4" player and to the left of the area "6" player. Symmetric rules must be respected by the front-row players (those in areas "2", "3" and "4").
- When hitting, a player makes contact with the ball in the space above the opponent's court (in blocking an attack hit, this is allowed).
- A player touches the opponent's court with any part of his or her body except the feet or hands.4
- When serving, a player steps on the court or the end line before making contact with the ball.
- A player takes more than 8 seconds to serve.[12]
- At the moment of serve, one or more players jump, raise their arms or stand together at the net in an attempt to block the sight of the ball from the opponent (screening).5
- A player blocks the serve or attacks the serve when the ball is in the front zone and above the top of the net.