Name: Science: Chapter 11 Review p. 620-621 (M) work (p. 598) Date: Mr. Mentone motion (p. 572) force (p. 584) 1. A push, pull, or lift from one object to another is a(n) ________________________. 2. A change in the position of an object over time is _______________________________. 3. The use of force to move an object a certain distance is called _____________________. efficiency (p. 616) effort (p. 608) kinetic energy (p. 600) 4. The force applied to a machine is known as ___________________. 5. The ratio of input energy to output work is called ____________________________________. 6. When you drop a ball, gravity changes potential energy into____________________________. momentum (p. 578) acceleration (p. 576) velocity (p. 575) balanced forces (p. 588) 7. The mass of an object multiplied by its velocity is called its _____________________. 8. An object’s motion will not change if you only apply _____________________. 9. The speed and direction of a moving object are its ________________________. 10. The rate at which velocity changes is _________________. 11. A fast-moving and heavy ball could knock over many lighter objects. This illustrates the principle of a) deceleration. b) friction. c) momentum. d) balanced forces. (p. 578 ¶ 1-2) 12. If the same force is applied to each object, which will have the greatest acceleration? a) b) TRY IT YOURSELF! c) X d) (p. 588 ¶ 3) 13. Which demonstrates balanced forces? a) a bicycle leaning against a building b) a kite falling to the ground c) a bus accelerating around a curve d) wind slowing down a runner (p. 459) 14. True or false. A rock sitting at the top of a hill does not have energy. ________________________________________________________________________________ This sentence is (true, false) because circle one ________________________________________________________________________________ ________________________________________________________________________________