Edexcel AS Physics in 100 Pages -----an easy-to-understand textbook & exam preparation guide Copyright ©2011 by Yajun Wei All rights reserved under international Copyright Conventions. No part of the text of this book may be reproduced in any form or by any electronic or mechanical means‚ including information storage and retrieval systems‚ without permission in writing by the publisher‚ except by reviewers or catalogues not limited to online for purpose of promotion. Front Cover photo
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The specific latent heat of vaporization of a substance is the quantity of energy required to A. raise the temperature of a unit mass of a substance by one degree Celsius. B. convert a unit mass of liquid to vapour at constant temperature and pressure. C. convert a unit mass of solid to vapour at constant temperature and pressure. D. convert a unit mass of liquid to vapour at a temperature of 100°C and a pressure of one atmosphere.
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Physics Exam Study Notes By: Faizan Dhalla | SPH3U 1: Forces and Motion * Kinematics: study of motion * Basic types of motion: * Uniform (constant speed in straight line) * Non-uniform * Scalar quantity: with magnitude & no direction * Distance‚ average speed * Vector quantity: with magnitude (arrow above it) & direction (in square brackets after unit) * Position‚ displacement‚ acceleration * Velocity: * Rate of change of position *
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3 The Relation of Physics to Other Sciences 3-1 Introduction Physics is the most fundamental and all-inclusive of the sciences‚ and has had a profound effect on all scientific development. In fact‚ physics is the presentday equivalent of what used to be called natural philosophy‚ from which most of our modern sciences arose. Students of many fields find themselves studying physics because of the basic role it plays in all phenomena. In this chapter we shall try to explain what the fundamental
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Physics IN OUR DAILY LIVES “Any sort of technology which we uses IN our daily life is related to Physics.” Physics is the science of matter and its motion‚ space-time and energy. Physics describes many forms of energy - such as kinetic energy‚ electrical energy‚ and mass; and the way energy can change from one form to another. Everything surrounding to us is made of matter and Physics explains matter as combinations of fundamental particles which are interacting through fundamental forces. It will
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protects them from the physics at play in the sport’s fearsome collisions. HALF A TON OF HURT At 5 ft. 11 in. and 199 pounds‚ Marcus Trufant is an average-size NFL defensive back (DB). Those stats don’t stand out in a league where more than 500 players weighed 300-plus pounds at the 2006 training camps. But a DB’s mass combined with his speed -- on average‚ 4.56 seconds for the 40-yard dash -- can produce up to 1600 pounds of tackling force‚ according to Timothy Gay‚ a physics professor at the University
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Physics In Our Everyday Life Physics is not something that only knowledgeable scientist think about because physics coincides with our everyday life. They consist of energy‚ kinetic energy‚ potential energy‚ conservation of energy‚ velocity‚ acceleration‚ mass‚ force‚ and gravity. Fist there is energy. You need to go to bed early so you will have energy in the morning to go to school. Energy gives you the e ability to do work. Energy is everywhere in nature‚ sunlight wind‚ water
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What Is Physics and What Are Its Uses? Physics‚ a branch of science‚ is traditionally defined as the study of matter‚ energy‚ and the relation between them. The interaction between matter and energy is found everywhere. In order for matter to move‚ it requires some form of energy. Sports show many good examples of the relationship between matter and energy. For instance‚ a pitcher requires energy to throw a baseball at the incredible speed and accuracy that is needed to keep the batter from
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A force can do one of four things to an object: 1. Make it speed up - accelerate. 2. Make it slow down - decelerate. 3. Change its direction. 4. Change its shape. If something is doing one of these four things there must be net force acting upon it. Newton’s First Law ’Every body continues in a state of rest or uniform motion unless acted upon by an external force.’ Something without net force acting on it will either stay still or move at a constant speed in a straight line until
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Experiment 1.7: Graphical Analysis of Motion Introduction To graphically analyze motion‚ two graphs are commonly used: Displacement vs. Time and Velocity vs. Time. These two graphs provide significant information about motion including distance/displacement‚ speed/velocity‚ and acceleration. The displacement and acceleration of a moving body can be obtained from its Velocity vs. Time graph by respectively finding the area and the slope of the graph. Data Tables – Part I Displacement
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