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Chapter 8 Review

Total questions: 40

Worksheet time: 23mins

Name
Class
Date
1.

What is the amount of work a person does within a given amount of time?

a)

power

b)

watt

c)

time

d)

work

2.

What is the unit used to measure power?

a)

power

b)

watt

c)

meter

d)

joule

3.

If a force is applied to an object and the object moves in the direction of the force, ________________ is being done.

a)

time

b)

force

c)

newtons

d)

work

4.

The metric unit of work is a ___________.

a)

watt

b)

joule

c)

meter

d)

second

5.

A ____________ is 1 joule of work done in 1 second.

a)

watt

b)

joule

c)

second

d)

meter

6.

the ability to do work

a)

energy

b)

kinetic energy

c)

potential energy

d)

generator

7.

a device used to convert mechanical energy to electrical energy

a)

energy

b)

generator

c)

kinetic energy

d)

potential energy

8.

energy of motion

a)

energy

b)

generator

c)

kinetic energy

d)

potential energy

9.

stored energy

a)

energy

b)

generator

c)

kinetic energy

d)

potential energy

10.

energy cannot be created or destroyed

a)

energy

b)

law of conservation of energy

c)

kinetic energy

d)

potential energy

11.

Where is the point of greatest potential energy?

a)

A

b)

B

c)

D

d)

G

12.

Where is the point of greatest kinetic energy?

a)

A

b)

B

c)

D

d)

G

13.

Type of energy:

stored in the bonds between atoms

a)

chemical

b)

mechanical

c)

nuclear

d)

radiant

14.

Type of energy:

moving objects

a)

chemical

b)

mechanical

c)

nuclear

d)

radiant

15.

Type of energy:

stored in the nucleus of an atom

a)

chemical

b)

mechanical

c)

nuclear

d)

radiant

16.

Type of energy:

associated with light

a)

chemical

b)

mechanical

c)

nuclear

d)

radiant

17.

Type of energy:

moving particles

a)

heat

b)

electrical

c)

sound

d)

radiant

18.

Type of energy:

cause electrons to move in electrons

a)

heat

b)

electrical

c)

sound

d)

radiant

19.

Type of energy:

noise

a)

heat

b)

electrical

c)

sound

d)

radiant

20.

how well a machine performs

a)

efficiency

b)

effort force

c)

fulcrum

d)

lever

21.

the force applied to a machine by the user

a)

efficiency

b)

effort force

c)

fulcrum

d)

lever

22.

a fixed point around which a lever rotates

a)

efficiency

b)

effort force

c)

fulcrum

d)

lever

23.

a simple machine containing a bar that can turn around a fixed point

a)

efficiency

b)

effort force

c)

fulcrum

d)

lever

24.

the force applied to a machine by the object to be moved

a)

resistance force

b)

simple machine

c)

work input

d)

work output

25.

a tool with few parts that makes it easier or possible to do work

a)

resistance force

b)

simple machine

c)

work input

d)

work output

26.

work put into a machine by its user

a)

resistance force

b)

simple machine

c)

work input

d)

work output

27.

work done by a machine against the resistance

a)

resistance force

b)

simple machine

c)

work input

d)

work output

28.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

29.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

30.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

31.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

32.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

33.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

34.

Which type of lever is this?

a)

1st class

b)

2nd class

c)

3rd class

35.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

36.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

37.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

38.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

39.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

40.

Which simple machine is this an example of?

a)

inclined plane

b)

wedge

c)

pulley

d)

screw

e)

wheel & axle

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