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WorksheetsWork and Power
Total questions: 12
Worksheet time: 14mins
Name
Class
Date
1.
What is work?
a)
A push or pull.
b)
The distance an object can be moved.
c)
A change in energy.
d)
The rate at which energy is transferred.
2.
The door to the classroom weighs 3 kg. How much work is done when Michael pushes on the door to the classroom with 15 Newtons of force, pushing the door 1.3 meters?
a)
45 Joules
b)
19.5 Joules
c)
3.9 Joules
d)
58.5 Joules
3.
Ms. McDonald holds a desk perfectly still above her head. If she holds the desk at a height of 0.5 meters above her head, and applis 68 Newtons of force to do so, how much work has she done?
a)
34 Joules
b)
0 Joules
4.
I do 132 Joules of work on a bookcase. If I apply a force of 6 Newtons, how far have I moved the bookcase?
a)
22 meters
b)
792 meters
c)
17 meters
d)
320 meters
5.
How are force and distance related?
a)
As distance increases, force increases.
b)
As distance increases, force decreases.
6.
What is a force?
a)
A push
b)
A pull
c)
All of the above
7.
What is the definition of power?
a)
the amount of work an object does
b)
the rate at which force is applied
c)
the amount of matter in an object
d)
the rate at which work is done
8.
Johann Sebastian Bach carries his piano up the stairs doing 2500 Joules of work. If he did this in 25 seconds, how much power did he do?
a)
62,500 Watts
b)
6200 Wats
c)
100 Watts
d)
125 Watts
9.
Gravity is pulling down on Mr. Mitchell with 850 Newtons of force. If he climbs 30 meters up the cliff in 30 seconds, how much power did he show?
a)
850 Watts
b)
28.3 Watts
c)
765,000 Watts
d)
1.06 Watts
10.
Kyrell pushes a basketball with a force of 32 Newtons. In 4 seconds, he moves the ball 12 meters. How much power did Kyrell demonstrate?
a)
32 Watts
b)
96 Watts
c)
10.67 Watts
d)
1536 Watts
11.
Which of the following would result in an increase in power?
a)
Decrease the amount of time to do work.
b)
Increase the amount of time to do work.
c)
Decrease the distance moved.
d)
Decrease the amount of work done.
12.
A Mustang has more horsepower than your mom's minivan. What does this mean?
a)
The Mustang has a higher topspeed.
b)
The minivan has a worse gas mileage.
c)
The Mustang can do work faster.
d)
The Mustang will die.
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