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WorksheetsWork and Power
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
True or false
You do work only when you exert a force on an object and move it
You do work only when you exert a force on an object and move it
a)
true
b)
false
2.
Two factors that determine work are
a)
size of the force, and distance
b)
size of the force, and type of force
c)
mass, and distance
3.
work is a measurement of how much force is applied over a certain
a)
distance
b)
velocity
c)
shape
d)
size
4.
units for work are
a)
netwons
b)
joules
c)
meters
d)
seconds
5.
if you push a cart with a force of 60 N for 2 m... how much work have you done
a)
120 J
b)
30 J
c)
120 N
d)
30 N
6.
work transfers
a)
sweat
b)
energy
c)
velocity
d)
effort
7.
The unit used to measure power is the
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
8.
Which of the following is the best example of work being done.
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
9.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
10.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
11.
Force is a _____ or _______
a)
simple complex
b)
push pull
c)
up down
d)
in out
12.
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
13.
P=25 watts
W=5000 Joules
t=???
W=5000 Joules
t=???
a)
200 sec
b)
0.0005 s
c)
125000 s
d)
125 s
14.
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
15.
Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.
a)
energy
b)
time
c)
work
d)
elasticity
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