Hoo Sze Yen www.physicsrox.com Physics SPM 2011 CHAPTER 3: FORCES AND PRESSURE 3.1 Pressure Units of pressure Unit Note Pa SI unit N m-2 Equivalent to Pa N cm-2 cm Hg m water atm 1 atm = atmospheric pressure at sea level bar 1 bar = 1 atm Pressure is the force which acts normal per unit area of contact. P= F A where P = pressure [Pa] F = force [N] A = area [m2] For atmospheric pressure only 3.2 Pressure in Liquids Pressure in liquids are not dependent on the size or
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000 years. Few facts of his life Very little is known about the man who wouldbecome so influential to mathematics. Only two things are certain.Euclid (pronounced YOOdclud) taught in Alexandria‚ Egypt‚ after Plato(c. 428-348 b.c.) but before Archimedes of Syracuse (287-212 b.c.). Somebelieve that Euclid may have been a student at Plato’s Academy (whichcontinued long after Plato’s death). As to Euclid’s place of birth‚ noone knows for sure. Early Arab writers said he was a Greek born in Tyre(on
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References: 1. Jump up to:a b "Archimedes (Greek mathematician) - Britannica Online Encyclopedia". Britannica.com. Retrieved 2012-08 2. Jump up to:a b "The works of Archimedes". p. 257. Retrieved 11 March 2010. "Any solid lighter than a fluid will‚ if placed in the fluid‚ be so far immersed that the weight of the solid will be equal to the weight of the
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the diameter of the circle (Smoller‚ 2001). The majority of the population‚ however‚ does not realize the history associated with the symbol‚ which not only spans throughout the centuries but throughout the millenniums. The Babylonians‚ Egyptians‚ Archimedes of Syracuse‚ Leonardo of Pisa‚ Francois Viete‚ Leonhard Euler‚ Asian mathematicians such as Liu Hiu‚ Tsu Ch’ung-Chih‚ Arya Bhatta‚ Gottfried Leibniz‚ Isaac Newton‚ William Jones‚ John Machin. George Buffon and Srinivasa Ramanujan‚ have all played
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apprehensive towards her interest in academics. Born in Paris in 1776‚ Germaine was born into a wealthy family. She soon developed an interest in Mathematics at the age of thirteen. When she stumbled upon a book about Archimedes in her father’s library which described how Archimedes was so engrossed in the study of a geometric figure in the sand that he failed to respond to the questioning of a roman soldier and as a result he
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extensive and intensive properties) Check up the words mass‚ volume‚ density‚ extensive properties‚ and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas? Materials: Safety glasses‚ 10‚ 25 or 50 mL graduated cylinders Distilled water Metal Samples W‚ X‚Y & Z Procedure: 1. Class split into 5 groups. Every group
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1729‚ Ramanujan said that 1729 is the smallest number which can be written in the form of sum of cubes of two numbers in two ways‚ i.e. 1729 = 93 + 103 = 13 + 123 since then the number 1729 is called Ramanujan’s number. In the third century B.C‚ Archimedes noted that the ratio of circumference of a circle to its diameter is constant. The ratio is now called ‘pi ( Π )’ (the 16th letter in the Greek alphabet series) The largest numbers the Greeks and the Romans used were 106 whereas Hindus used numbers
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Navina Jayadass 7- Archimedes Summary for King Lear by William Shakespeare Lear‚ the aging king of Britain‚ decides to step down from the throne and divide his kingdom evenly among his three daughters. First‚ however‚ he puts his daughters through a test‚ asking each to tell him how much she loves him. Goneril and Regan‚ Lear’s older daughters‚ give their father flattering answers. But Cordelia‚ Lear’s youngest and favorite daughter‚ remains silent‚ saying that she has no words
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Throughout history‚ humankind has frequently searched for answers to the mystery of life and faith. The philosophers or lovers of wisdom used their knowledge to form our belief system and rational thinking to our understanding of the world. Without these vital ways of life‚ we would not have some of the most valuable things that make Greece today. Therefore‚ Religion and Philosophy were essential for Ancient Greece because it affected western thought and supported Hellenistic age. The Ancient Greeks
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test MAN o Fj c introductio n The Friedman Test is used when comparing more than two populations or treatments randomly assigned within blocks. This is the counterpart of the F test or ANOVA used in parametric statistics. Unlike the F Test or ANOVA which is used with the assumption that the observations taken from each of the populations are normally distributed‚ the Friedman test is used when no distributional assumption are necessary. c j discussio n g STEP ONE State the null hypothesis
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