Barron's Physics Practice Plus: 400+ Online Questions and Quick Study Review (2022)

Name: Barron's Physics Practice Plus: 400+ Online Questions and Quick Study Review (2022)
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Prepare confidently with Barron's Physics Practice Plus: 400+ Online Questions and Quick Study Review (2022), offering structured revision tests to reinforce key concepts.

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About the Authors
Robert Jansen
Robert Jansen has taught Advanced Placement Physics at Aliso Niguel High
School in Aliso Viejo, California, since 1998. He holds a bachelor’s degree in
psychobiology from the University of California, Los Angeles, and a
master’s degree in education from Pepperdine University. He gravitated
toward teaching physics because of the challenging material and a sustained
belief that physics does not need to be mysterious and difficult but rather can
be comprehensible and achievable. The result has been a large and
competitive physics program where each year more than 220 students
participate in the AP Physics 1 and AP Physics C courses. The overarching
goal is preparedness and confidence for students who will be studying
science during their undergraduate years.
Greg Young
Greg Young has been teaching high school science for more than twenty
years. He currently teaches Honors Physics, AP Chemistry, and Chemistry at
San Clemente High School in San Clemente, California. He holds a
bachelor’s degree in biochemistry from the University of California, San
Diego, and a master’s degree in science education from USC. Having always
been interested in science and how to make it relevant to others, Greg’s
interest in teaching lies in being able to create interactive lessons that engage
students in their learning and form a relevant context for difficult concepts in
physics and chemistry. Science made interesting is science worth learning.

© Copyright 2022 by Kaplan North America, LLC, dba Barron’s Educational
Series. Content in this book was previously published in a different format
under the title SAT Subject Test in Physics.
Published by Kaplan North America, LLC, dba Barron’s Educational Series
1515 West Cypress Creek Road
Fort Lauderdale, FL 33309
www.barronseduc.com
All rights reserved under International and Pan-American Copyright
Conventions. By payment of the required fees, you have been granted the
non-exclusive, non-transferable right to access and read the text of this eBook
on screen. No part of this text may be reproduced, transmitted, downloaded,
decompiled, reverse engineered, or stored in or introduced into any
information storage and retrieval system, in any form or by any means,
whether electronic or mechanical, now known or hereinafter invented,
without the express written permission of the publisher.
10 9 8 7 6 5 4 3 2 1
ISBN: 978-1-5062-8153-7

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Independence of Motion
True Velocity and Displacement
Relative Velocity
Projectile Motion
Projectiles Launched at an Angle
CHAPTER 5: DYNAMICS
Inertia
Force
Common Forces
Force Diagrams
Newton’s Laws of Motion
Solving Force Problems
CHAPTER 6: CIRCULAR MOTION
Uniform Circular Motion
Dynamics in Circular Motion
Angular Velocity
CHAPTER 7: ENERGY, WORK, AND POWER
Mechanical Energy
Work
Power
Conservation of Energy
CHAPTER 8: MOMENTUM AND IMPULSE

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Momentum
Impulse
Conservation of Momentum
Energy in Collisions
CHAPTER 9: GRAVITY
Universal Gravity
Gravitational Field
Circular Orbits
Kepler’s Laws
CHAPTER 10: ELECTRIC FIELDS
Charge
Electric Fields
Uniform Electric Fields
Electric Fields of Point Charges
CHAPTER 11: ELECTRIC POTENTIAL
Potential of Uniform Fields
Potential of Point Charges
Electric Potential Energy
Motion of Charges and Potential
Capacitors
CHAPTER 12: CIRCUIT ELEMENTS AND DC CIRCUITS
Principal Components of a DC Circuit

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DC Circuits
Heat and Power Dissipation
CHAPTER 13: MAGNETISM
Permanent or Fixed Magnets
Current-Carrying Wires
Solenoids and Electromagnets
Force on Moving Charges
Force on Current-Carrying Wires
Electromagnetic Induction
CHAPTER 14: SIMPLE HARMONIC MOTION
Terms Related to SHM
Oscillations of Springs
Oscillations of Pendulums
Graphical Representations of SHM
CHAPTER 15: WAVES
Traveling Waves
Mechanical Waves
Electromagnetic Waves
Doppler Effect
Superposition and Standing Waves
CHAPTER 16: GEOMETRIC OPTICS

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First Law of Thermodynamics
Entropy
Second Law of Thermodynamics
CHAPTER 20: ATOMIC AND QUANTUM PHENOMENA
Development of the Atomic Theory
Energy-Level Transitions
Ionization Energy/Work Function
Photoelectric Effect
CHAPTER 21: NUCLEAR REACTIONS
Nucleons
Subatomic Particles
Isotopes
The Strong Force
Mass-Energy Equivalence
Radioactive Decay
Fission and Fusion
CHAPTER 22: RELATIVITY
Special Theory of Relativity
Time, Length, and Mass
INDEX

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How to Use This Book
Barron’s Physics Practice Plus is designed to offer essential
review of key topics and loads of online practice to help you excel
in physics.
Online Practice
Access more than 400 questions in online quizzes arranged by
topic for customized practice! All questions include answer
explanations.
What Will You Learn in the Book?
Key review and topics are covered so you can study the essentials
needed to succeed.
Learning objectives are listed at the start of each chapter. This list
of key ideas will help guide your learning and study plan and allow
you to easily return to topics that you want to review again.
Tips are given throughout the book to offer helpful notes,
reminders, and strategies to improve your learning.

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CHAPTER 1
Conventions and Graphing
Learning Objectives
In this chapter, you will learn how to:
∘ Review the fundamental metric units (SI units) and some of the derived
metric units (SI units) used in physics
∘ Determine the dependent and independent variables of a graph
∘ Explain the importance of slope and area to a graph
Fundamental and Derived Units
The fundamental metric units (SI units) in physics cover the basic
quantities measured, such as length, mass, and time. The units measure a
quantity and are given a unit name and symbol. Table 1.1 lists the
fundamental quantities along with the unit names and symbols.
TABLE 1.1 Fundamental Quantities and Units
Quantity (Symbol) Unit Name Symbol
Length (l) Meter m
Mass (m) Kilogram kg
Time (t) Second s

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Electric current (I) Ampere A
Temperature (T) Kelvin K
Amount of substance (n) Mole mol
Derived units are combinations of one or more of the fundamental units.
Table 1.2 lists common derived units used in physics.
TABLE 1.2 Derived Units
It is important to know which units correctly belong to a specific quantity. An
easy way to do this is to write out the principal formula for the quantity and
then replace each variable on the right side of the equation with its unit
symbol. There may be more than one correct answer including the unit
symbol, other derived units, and fundamental units. For example, all of the
following are correct ways to express units of energy: J, N • m, and kg •
m2/s2.
EXAMPLE 1.1

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Derived Units
The unit of force is the newton. What are the fundamental units that make up the newton?
WHAT’S THE TRICK?
Write down the foundational formula for force.
Replace the variable symbols with their matching units. Force is measured in newtons, N. Mass is
measured in kilograms, kg. Acceleration is measured in meters per second squared, m/s2.
N = kg • m/s2
Graphing Variables
The graphing techniques of mathematics are used in science to compare
dependent and independent variables. In mathematics, you are familiar with
the traditional x- and y-coordinate axes. In science, the x-axis represents the
independent variable and the y-axis represents the dependent variable. The
value of the dependent variable depends upon the independent variable.
Graphs are always titled so that the dependent variable is listed first, and the
independent variable is listed second. As an example, a position versus time
graph would have position (dependent variable) plotted on the y-axis and
time (independent variable) plotted on the x-axis.
Slope and Area
Slope
Slopes are very important in physics. Slope is determined by dividing the rise
(y-axis value) by the run (x-axis value). The trick is to look at the units
written on the axes of the graph. If you divide these units, you can easily

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