CGHS Physics Trial HSC Examination 2008 Page 1 Student number ……………………….. Teacher …………………………………….. Cheltenham Girls High School 2008 Higher School Certificate Trial examination Physics TASK WEIGHTING: 35% General Instructions • Reading time – 5 minutes • Working time – 3 hours • Write using black or blue pen • Draw diagrams using pencil • Board-approved calculators may be used • A data-sheet‚ formulae sheets and Periodic Table are provided at the back of this paper Total marks –
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AS Level Physics: Terms & Definitions:- Measurement Random errors are errors of measurements that result in a scatter of readings about a mean value. Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value. Accuracy is a measure of how close the results of an experiment agree with the true value. Precision is a measure of how close the results of an experiment
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mm‚ where x is A) less than 6.5. B) greater than 6.5. Answer: B Var: 1 7) If an operatic aria lasts for 5.75 min‚ its length expressed in seconds is x s‚ where x is A) less than 5.75. B) greater than 5.75. Answer: B Var: 1 Generic Physics: Topic 1 -- CVC 5/23/11 -- Page 1 8) Scientists use the metric system chiefly because it is more accurate than the English system. A) True B) False Answer: B Var: 1 9) When adding two numbers‚ the number of significant figures in the sum is equal to the number of significant
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the possible sources of error in your measurements? Our data falls fairly neatly on our best-fit line. The possible sources of error are incorrect positioning of the ruler‚ and possible incorrect reading of the measurements. 3. When we draw a line past the data points measured‚ we call that extrapolation. Why is this not advised in this case? Extrapolation is not advised in this case because extrapolating gets less precise measurements. Since the measurements here might not be 100% accurate in
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Module 2 Honors Extension: The Physics in Swimming Physics is defined as the branch of science concerning the study of matter and energy and the interactions between the two. Physics tries to explain the nature of the world around us‚ how things happen and why. Swimming displays some physical properties‚ such as buoyancy‚ drag resistance and propulsion. We swimmers are at a constant battle to stay afloat‚ while fighting through the water and propelling ourselves forward‚ and we do so using technique
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College Physics OpenStax College Rice University 6100 Main Street MS-380 Houston‚ Texas 77005 To learn more about OpenStax College‚ visit http://openstaxcollege.org. Individual print copies and bulk orders can be purchased through our website. © 2013 by Rice University. The textbook content was produced by OpenStax College and is licensed under a Creative Commons Attribution 3.0 Unported License. Under the license‚ any user of the textbook or the textbook content herein must provide proper attribution
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should be given. Specifically‚ built equipment used in the study must be described and the description accompanied by a picture 2. Treatment/General Procedure - the manner & sequence by which each experiment or set of observations were done & how measurements were obtained should be described in detail. Avoid using the "recipe style" when stating the step-by-step procedure. Use the narrative form in the past tense. 4. Results and discussion - this may be divided into sub-sections describing each set
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The independent variable is the rise of the ramp‚the dependent variable whether or not the marble will loop the loop. The underlying principle of all roller coasters is the law of conservation of energy. When a roller coaster crests the first big hill‚gravity takes over. Potential energy is sometimes known as positional energy. As the roller coaster falls is has enough kinetic energy to make it through the remainder of the ride. Inertia keeps the object in motion. The other forces bring the roller
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The Importance of Physics to Society Physics - the study of matter‚ energy and their interactions - is an international enterprise‚ which plays a key role in the future progress of humankind. The support of physics education and research in all countries is important because: 1. Physics is an exciting intellectual adventure that inspires young people and expands the frontiers of our knowledge about Nature. 2. Physics generates fundamental knowledge needed for the future technological advances
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I absolutely love jumping on the trampoline but I never really thought there was any physics involved. I knew you had to use a force to jump up and gravity pulls you back down obviously. An American inventor named George Nissen first invented the trampoline in 1935. (Silvia) A trampoline is defined as an elastic disc of hard canvas held up by metal springs attached to a metal skeletal frame. Kinetic and Potential energy allow you to be able to jump on a trampoline. PE=mgh this equation helps you
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