AP Physics C, 2014-2015 Edition

304 Pages·2013·19.98 MB·English

by  Greg Jacobs

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5 STEPS TO A 5™
AP Physics C
2014–2015
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5
TM
5 STEPS TO A
AP Physics C
2014–2015
Greg Jacobs • Joshua Schulman
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BIBLCIOOGNRTAEPNHTYS
Acknowledgments, x
About the Authors, xi
Introduction: The Five-Step Program, xii
Set Up Your Study Program
STEP 1
1 How to Approach Your AP Physics Course, 3
Ignore Your Grade, 4
Don’t Bang Your Head Against a Brick Wall, 4
Work with Other People, 4
Ask Questions When Appropriate, 5
Keep an Even Temper, 5
Don’t Cram, 5
Never Forget, Physics is “Phun,” 5
2 What You Need to Know About the AP Physics C Exams, 7
Background Information, 7
Some Frequently Asked Questions About the AP Physics C Exams 8
3 How to Plan Your Time, 15
What Should I Study?, 15
Understand Physics First, Then AP Physics C, 17
A Word About Calculus, 18
Three Different Study Schedules, 19
Determine Your Test Readiness
STEP 2
4 Fundamentals Quizzes, 25
Mechanics Quiz, 25
Electricity and Magnetism Quiz, 26
Answers to Mechanics Quiz, 27
Answers to Electricity and Magnetism Quiz, 29
What Do I Know, and What Don’t I Know?, 30
5 Take a Diagnostic Test, 31
Diagnostic Test, 32
Answers and Explanations, 36
Interpretation: How Ready Are You?, 38
Develop Strategies for Success
STEP 3
6 Memorizing Equations in the Shower, 41
Can You Ace This Quiz?, 41
So, How Did You Do?, 42
Equations Are Crucial, 42
What About the Free-Response Section?, 42
Treat Equations Like Vocabulary, 43
Answer Key to Practice Quiz, 46
❮ v
vi ❯ Contents
7 How to Approach Each Question Type, 47
How to Approach the Multiple-Choice Section, 48
How to Approach the Free-Response Section, 55
Lab Questions, 59
8 Extra Drill on Difficult but Frequently Tested Topics, 63
Tension, 64
The Answers, 65
Electric and Magnetic Fields, 66
The Answers, 67
Inclined Planes, 69
The Answers, 70
Motion Graphs, 72
The Answers, 73
Simple Circuits, 75
The Answers, 76
Review the Knowledge You Need to Score High
STEP 4
9 A Bit About Vectors, 81
Scalars, 81
Vector Basics, 82
Graphic Representation of Vectors, 82
Vector Components, 83
Adding Vectors, 83
Practice Problems, 85
Solutions to Practice Problems, 86
10 Free-Body Diagrams and Equilibrium, 87
What Is a Free-Body Diagram?, 88
Equilibrium, 89
Normal Force, 90
Tension, 91
Friction, 93
Inclined Planes, 96
Torque, 97
Practice Problems, 100
Solutions to Practice Problems, 101
Rapid Review, 102
11 Kinematics, 103
Velocity, Acceleration, and Displacement, 104
Constant-Acceleration Kinematics Equations, 105
Constant-Acceleration Kinematics Problem-Solving, 105
Freefall, 107
What If Acceleration Isn’t Constant?, 109
Projectile Motion, 109
Motion Graphs, 111
Air Resistance and the First-Order Differential Equation, 113
Practice Problems, 115
Solutions to Practice Problems, 116
Rapid Review, 117
Contents ❮ vii
=
12 Newton’s Second Law, F ma, 118
net
The Four-Step Problem-Solving Process, 119
Only Net Force Equals ma, 119
F on Inclines, 120
net
F for a Pulley, 122
net
Newton’s Third Law, 125
This Chapter Was Not as Easy as You Thought, 125
Practice Problems, 126
Solutions to Practice Problems, 127
Rapid Review, 128
13 Momentum, 129
Momentum and Impulse, 130
Conservation of Momentum, 131
Motion of the Center of Mass, 132
Elastic and Inelastic Collisions, 133
Two-Dimensional Collisions, 134
Practice Problems, 135
Solutions to Practice Problems, 136
Rapid Review, 136
14 Energy Conservation, 137
Kinetic Energy and the Work-Energy Theorem, 138
Potential Energy, 140
Conservation of Energy: Problem-Solving Approach, 140
Springs, 142
Power, 143
Potential Energy vs. Displacement Graphs, 143
Practice Problems, 145
Solutions to Practice Problems, 146
Rapid Review, 147
15 Gravitation and Circular Motion, 148
Velocity and Acceleration in Circular Motion, 149
Centripetal Acceleration, 149
Mass on a String, 150
Car on a Curve, 151
Newton’s Law of Gravitation, 152
Kepler’s Laws, 153
Practice Problems, 155
Solutions to Practice Problems, 156
Rapid Review, 157
16 Rotational Motion, 158
Rotational Kinematics, 159
Moment of Inertia, 161
Newton’s Second Law for Rotation, 162
Rotational Kinetic Energy, 163
Angular Momentum and Its Conservation, 164
Practice Problems, 166
Solutions to Practice Problems, 167
Rapid Review, 169