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WorksheetsWork and Power
Total questions: 25
Worksheet time: 32mins
Name
Class
Date
1.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
2.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
3.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
4.
The unit used to measure power is the
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
5.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
6.
W=125 J
d=10 m
F=???
d=10 m
F=???
a)
12.5 N
b)
1250 N
c)
0.08 N
d)
135 N
7.
If 150 Joules of work is needed to move a box 10 meters, what force was used?
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
8.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
9.
P=25 watts
W=5000 Joules
t=???
W=5000 Joules
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
10.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
11.
What is work?
a)
the amount of energy
b)
the transfer of force over a distance
c)
rate of work in a given time
d)
the change in distance in a given time
12.
What is the equation for work?
a)
W = mass * acceleration
b)
W = force * distance
c)
W = force/distance
d)
W = speed/time
13.
What is power?
a)
transfer a force through a distance
b)
the rate of speed
c)
the rate of work being done
d)
transfer of space over time
14.
What is the equation for power?
a)
P = Work/time
b)
P = Force/time
c)
P = time/distance
d)
P = Work * time
15.
What is the unit of measurement for Power?
a)
Joules
b)
Newtons
c)
Watts
d)
Meters
16.
What is energy?
a)
Force applied over a distamce
b)
How much work is done.
c)
Ability to do work
17.
True or false: Chemical energy is potential energy
a)
true
b)
false
18.
What is the definition for kinetic energy?
a)
the energy of motion (due to mass and velocity)
b)
stored energy due to position
c)
Energy at the top of a hill
19.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
20.
W = 500 Joules
t = 25 seconds
P = ???
t = 25 seconds
P = ???
a)
0.05 W
b)
20 W
c)
12500 W
d)
2000 W
21.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm
22.
How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?
a)
15 J
b)
45 J
c)
0 J
d)
5 J
23.
How much time is needed to produce 720 Joules of work if 90 watts of power is used?
a)
0.125 s
b)
8 s
c)
64800 s
d)
80 s
24.
If 68 W of power is produced in 18 seconds, how much work is done?
a)
1,224 J
b)
0.264 J
c)
3.77 J
d)
12.24 J
25.
If a group of workers can apply a force of 1,000 Newtons to move a crate 20 meters, what amount of work will they have accomplished?
a)
20,000 J
b)
200 J
c)
2,000 J
d)
20 J
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