Version 1.0 General Certificate of Education (A-level) January 2012 Physics A (Specification 2450) PHYA2 Unit 2: Mechanics‚ materials and waves Final Mark Scheme Mark schemes are prepared by the Principal Examiner and considered‚ together with the relevant questions‚ by a panel of subject teachers. This mark scheme includes any amendments made at the standardisation events which all examiners participate in and is the scheme which was used by them in this examination. The standardisation
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The 1920’s were a time of great cultural change in America. Traditionalists found the new values of the Jazz Age to be utterly sinful and immoral. The youth of the twenties rebelled against the constraints of their elders in several ways. One of the most provocative changes was the "new look" for young women. The Flapper Era entered America with a bang. Ladies did the unthinkable in cutting their long tresses to chin length bobs‚ smoking‚ wearing shorter dresses and even engaging
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Objectives: 1. Explain why psychologists are concerned with human biology. 2. Explain why‚ at every level‚ our existence is both part of a larger system and a combination of smaller systems. 3. Describe the structure of a neuron and the pro cess by which an action potential is triggered. 4. Describe how nerve cells communicate‚ and dis cuss the importance of neurotransmitters for human behavior. 5. Discuss the significance of endorphins‚ and ex plain how drugs influence neurotransmitters. 6. Identify
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Research Question How does spacing between dominoes affect the average velocity of the dominoes? Increasing space between each domino will decrease its velocity‚ decreasing the space will increase its velocity. Force at which it hits next dominoes is increased it will take longer for it hit‚ acceleration is constant‚ the longer it has to travel‚ the longer it will take to hit. According to Newton’s first law every object in a state of uniform motion tends to remain in that state of motion
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Since the birth of Physical Review Letters fifty years ago‚ condensed matter physics has seen considerable growth‚ and both the journal and the field have flourished during this period. In this essay‚ I begin with some general comments about condensed matter physics and then give some personal views on the conceptual development of the field and list some highlights. The focus is mostly on theoretical developments. DOI: 10.1103/PhysRevLett.101.250001 PACS numbers: 01.30.−y The transistor
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the distance between the earthʹs equator and north pole. B) the distance between the earth and the sun. C) the distance traveled by light in a vacuum. D) the length of a particular object kept in France. Answer: C Var: 1 2) The current definition of the standard second of time is based on A) the frequency of radiation emitted by cesium atoms. B) the earthʹs rotation rate. C) the duration of one year. D) the oscillation of a particular pendulum kept in France. Answer: A Var: 1 3) The current definition of the standard kilogram of mass is based on
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Destiny. The Manifest Destiny was centered around the idea that America was destined to expand across the whole continent. This spread of land was the cause of the war of 1812 which the South supported because they wanted more slave states. (Document B) Thomas Hart Benton predicted that American settlers in Oregon would open trade with Asia in a speech he made to the U.S. Senate in 1844. This prediction encouraged the people of the United States to continue expanding due to the trade opportunities
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Lesson 4 - introduction to control statements Fill in the Blanks Complete the following sentences by writing the word or words in the blanks provided. 1. In the statement‚ x =3;‚ the ’ =’ operator is one of Java’s extended assignment operators. 2. Using the same name for two methods in the same class‚ where each method has different parameter input‚ is called overloading. 3. The nextInt method of Java’s Random class returns an integer chosen at random from a range of values between 0 and n-1
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by the area. Billy and Crystal both took a short car trip along a road heading straight west from their house. They recorded their velocity every second. After they got home‚ each of them added their data to the graph above. Write Using physics vocabulary‚ compare/contrast Billy’s and Crystal’s trip. Be sure to – understand the type of graph that is being used. center your thoughts around a central idea and write directly to the prompt. organize your composition in one paragraph with
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BLAISE PASCAL LEONHARD EULER JOSEPH FOURIER SIR GEORGE GABRIEL STROKES Galileo Galilei | 1564-1642 Italian | performed fundamental observations‚ experiments‚ and mathematical analyses in astronomy and physics; discovered mountains and craters on the moon‚ the phases of Venus‚ and the four largest satellites of Jupiter: Io‚ Europa‚ Callisto‚ and Ganymede | Blaise Pascal | 1623-1662 French | discovered that pressure applied to an enclosed fluid is transmitted
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