WorksheetsFinals Review 2.5: Work
Total questions: 17
Worksheet time: 9mins
Name
Class
Date
1.
If this man was an actual human, would he be doing work by pushing against a giant stone?
a)
Yes he is doing work because he is applying a force.
b)
Yes he is doing work because he is moving something
c)
No, he is not doing work because no force is applied
d)
No, this is not work because object is not moving
2.
How is work POSSIBLE in this comic drawing? two answers are possible!
a)
Superman is holding the car steadily up over his head.
b)
Superman lifted the car from the ground over his head.
c)
Superman is strong
d)
Superman continues to press the car against the rock.
3.
______________is a transfer of energy that occurs when a force makes an object move.
a)
Effort
b)
Resistance
c)
Power
d)
Work
4.
___________________ is how fast energy is being used or produced.
a)
Effort
b)
Resistance
c)
Power
d)
Work
5.
How do we know that work is being done?
a)
An object is moved in the opposite direction of a force
b)
An object is moved in the same direction by a force
c)
An object does not move when a force is applied
d)
An object is moving.
6.
Adam lifts a 40N bag from the floor to the table. What is the work done if distance =1.1m? W = F*d
a)
44 Joules
b)
40 Joules
c)
392 Joules
d)
431 Joules
7.
A student walks the same stairs slowly and then quickly. She requires the same amount of _____
a)
Power
b)
Work
8.
Which of the following statements is true about work? More than one is true.
a)
A Watt is the unit for work
b)
To calculate work, you must know the time required.
c)
Work is a form of Energy
d)
An object must move for work to occur
9.
Which of the following conditions is NOT required in order for work to be done?
a)
The object must move.
b)
The force and the movement of must be in the same direction.
c)
The object must move at constant speed.
d)
A force must be applied to the object.
10.
The unit for power is the:
a)
Newton
b)
Kilogram
c)
Joule
d)
Watt
11.
A man climbs 4.0 meters to top of the stairs in 4 sec. What is the power if he weighs 80N? P = Work/Time
a)
1280 W
b)
80 W
c)
5 W
d)
320 W
12.
Does the picture show work being done by superman?
a)
No, because the sled slides easily on the ice
b)
No, because we don’t know how fast it’s moving
c)
Yes, a force is being applied in the same direction as motion
d)
Yes, just because they are moving
13.
If Work = Force * distance, what equation would you use if you needed to solve for Force?
a)
W=FX d
b)
W= F/d
c)
F=W/d
d)
F= d/W
14.
If you are asked to solve for power, which variables will give you what you need? 2 are correct
a)
Force, Distance, Work
b)
Force, Time
c)
Work, Force
d)
Work, Time
15.
A girl pushes a crate 5 m across the floor with 20 N of force. It takes 4 seconds. What was her power? P = Work / Time
a)
100 Watts
b)
25 Watts
c)
20 Watts
d)
80 Watts
16.
This Unit Review will replace a missing ________ grade.
a)
Home/Classwork
b)
Quiz
c)
Test
d)
All
17.
This Unit Review will NOT replace a missing ________ grade.
a)
Homework
b)
Classwork
c)
Quiz or Test
d)
All
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