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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
force
B
power
C
momentum
D
strength
2) What is the transfer of energy from one object to another by force?
A
motion
B
power
C
work
D
momentum
3) Which of the following is a relates mass and velocity?
A
strength
B
power
C
momentum
D
force
4) What is the equation to calculate power?
A
P = W x d
B
P= W x t
C
P = d x t
D
P = W/t
5) What is the unit for work?
A
Joules
B
Watt
C
Kilograms
D
Newton
6) What is the unit for power?
A
Newton
B
Joules
C
Watt
D
Kilogram
7) More power means _____work can be done in the same time.
A
the same
B
not enough information
C
less
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
0 J
B
200 W
C
10 J
D
20 W
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 third law of motion
B
Law of conservation of momentum
C
Law of conservation of motion
D
Newton’s second law of motion
10) A heavier object moving has _____ momentum than lighter objects moving.
A
not enough information
B
more
C
less
D
the same
*select an answer for all questions
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