Conservation laws

132 Pages·1998·1.482 MB·English

by  Benjamin Crowell

Conservation
Laws
Benjamin Crowell
Book 2 in the Light and Matter series of introductory physics textbooks
www.lightandmatter.com

Conservation Laws
The Light and Matter series of
introductory physics textbooks:
1 Newtonian Physics
2 Conservation Laws
3 Vibrations and Waves
4 Electricity and Magnetism
5 Optics
6 The Modern Revolution in Physics
Conservation Laws
Benjamin Crowell
www.lightandmatter.com
Light and Matter
Fullerton, California
www.lightandmatter.com
© 1998-2002 by Benjamin Crowell
All rights reserved.
Edition 2.1
rev. 2002-07-30
ISBN 0-9704670-2-8
To Uri Haber-Schaim, John Dodge, Robert Gardner, and Edward Shore.

Brief Contents
1 Conservation of Energy .............................. 13
2 Simplifying the Energy Zoo ........................ 29
3 Work: The Transfer of Mechanical Energy 41
4 Conservation of Momentum ....................... 63
5 Conservation of Angular Momentum......... 89
Exercises ..........................................................115
Solutions to Selected Problems .....................117
Glossary ............................................................119
Index ................................................................. 121
Useful Data ...................................................... 132
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Contents
1 Conservation of Energy
13
1.1 The Search for a Perpetual Motion
Machine.................................................. 13
1.2 Energy ................................................. 14
1.3 A Numerical Scale of Energy............... 16
1.4 Kinetic Energy ..................................... 20
1.5 Power .................................................. 23
Summary...................................................... 25
Homework Problems.................................... 26
3 Work: The Transfer of
Mechanical Energy 41
3.1 Work: The Transfer of Mechanical Energy
41
3.2 Work in Three Dimensions .................. 47
3.3 Varying Force ...................................... 49
3.4 (cid:242) Applications of Calculus .................... 51
3.5 Work and Potential Energy.................. 52
2 Simplifying the Energy
3.6* When Does Work Equal Force Times
Zoo 29 Distance?................................................ 54
3.7* The Dot Product................................. 56
2.1 Heat is Kinetic Energy ......................... 30
Summary...................................................... 57
2.2 Potential Energy: Energy of Distance or
Homework Problems.................................... 58
Closeness............................................... 32
2.3 All Energy is Potential or Kinetic.......... 36
Summary...................................................... 38
Homework Problems.................................... 39
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