Excerpted from
Excerpted from Cracking the SAT Physics Subject Test, 2013-2014 Edition by Steven A. Leduc. Copyright © 2013 by TPR Education IP Holdings, LLC. Excerpted by permission of The Princeton Review imprint of the Random House Children's Group, a division of Random House, Inc. All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
