Physics - Work and Power Practice Problems
Science
6th - 8th Grade
Used 137+ times
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7 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Amy uses 20N of force to push a lawn mower 10 meters. How much work does she do?
(a)
2.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
How much work does an elephant do while moving a circus wagon 20 meters with a pulling force of 200N?
(a)
3.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A 900N mountain climber scales a 100m cliff. How much work is done by the mountain climber?
(a)
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Shawn uses 45N of force to stop the cart 1 meter from running his foot over. How much work does he do?
(a)
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A horse performs 15000 joules of work pulling a wagon for 20 seconds. What is the horse's power?
(a)
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
If it takes 50 seconds and 10 Joules move some books, calculate how much power is required to complete this task.
(a)
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
It takes 5 seconds and 250 joules to move a full wagon across the street. How much power is needed?
(a)
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