Chapter 11 review p. 620-621 (M) - Science

Science: Chapter 11 Review p. 620-621 (M)
work (p. 598)
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
(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