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Samuels PS Power, Work Momentum
Test Description: Physical Science Power, Work Momentum
Instructions: Answer all questions to get your test result.
1) What is the rate of doing work?
A
power
B
force
C
strength
D
momentum
2) What is the transfer of energy from one object to another by force?
A
momentum
B
work
C
motion
D
power
3) Which of the following is a relates mass and velocity?
A
strength
B
force
C
power
D
momentum
4) What is the equation to calculate power?
A
P= W x t
B
P = W x d
C
P = d x t
D
P = W/t
5) What is the unit for work?
A
Newton
B
Kilograms
C
Watt
D
Joules
6) What is the unit for power?
A
Newton
B
Kilogram
C
Watt
D
Joules
7) More power means _____work can be done in the same time.
A
the same
B
less
C
not enough information
D
more
8) A man is attempting to push a cow into a fenced area. He exerts 10 N of force on the animal for 20 min, but the cow does not move. How much work has the man done?
A
20 W
B
200 W
C
10 J
D
0 J
9) What is the law that states that a force has to act on an object to change that object’s momentum,
A
Newton’s second law of motion
B
Law of conservation of motion
C
Law of conservation of momentum
D
Newton’s third law of motion
10) A heavier object moving has _____ momentum than lighter objects moving.
A
more
B
the same
C
less
D
not enough information
*select an answer for all questions
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