Name:    Chapter 1 Self Quiz

Part A

True/False

Indicate whether the statement is true or false.

1.

You have to use more force to move an object down a slope.

2.

The force of gravity is different on Earth than it is on the Moon.

3.

You can change the way that a ball moves by changing your force.

4.

Moving an object across a rough surface is more difficult than moving it across a smooth surface because of balanced forces.

5.

Forces can combine and change the way that an object moves.

Part B

Complete the Sentences
Use the following words to complete the sentences.

weight      surface texture       force        friction        equilibrium       slope         load

6.

___________ is the pull of gravity on an object.

7.

An object is in _______________when there is no change in its motion.

8.

___________ is a force between two surfaces.

9.

___________ affects the amount of friction between two objects.

10.

The ___________ is the weight of an object that is being moved.

11.

When you increase the ___________ of a ramp, you have to use more force to lift an object.

12.

___________ is a push or pull that affects how an object moves.

Part C

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

13.

Forces are balanced when there is
 a. no change in the way that an object moves. b. a change in the way that an object moves.

14.

Forces are unbalanced when
 a. the forces are equal. b. one force is greater than another.

15.

A spring scale measures
 a. friction. b. slope. c. force.

16.

Friction
 a. is always an advantage. b. is always a disadvantage. c. can be an advantage and a disadvantage.

Part D

Answer the Question
Use sentences to answer the question.

17.

What three things affect the amount of force that is needed to move an object?