Select the correct answer. What is energy? A. a change that appears in an object when force is applied B. the property of a body that gives it mass C. the amount of heat produced by a body D. the ability of an object to undergo change E. the ability of a body to move

What makes the yardstick test a direct measurement of reaction time? a. the further the yardstick falls, the slower the reaction time. b. yardsticks have numerical markings for length. c. yardsticks are designed to measure reaction time. d. all of the above select the best answer from the choices provided.