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Work, Force, Power, & Mechanical Advantage 2
Test Description: Work, Force, Power, & Mechanical Advantage
Instructions: Answer all questions to get your test result.
1) Force x distance is the formula for -
A
force
B
work
C
inertia
D
power
2) The correct equation for power is -
A
work/time
B
force x distance
C
mass/volume
D
work output/work input
3) The amount of work completed in a certain amount of time is
A
power
B
work
C
mechanical advantage
D
mechanical efficiency
4) What is being performed when a force is used to move an object a distance?
A
force
B
power
C
work
D
motion
5) A car manufacturer reduces the mass of a car 250kg. If the new design is identical to the old design, how will the new car compare to the old car?
A
It will need less force to move.
B
It will require more fuel to operate
C
It will release more gas emissions
D
It will have a greater gravitational attraction to the road
6) To complete a project, 200,000 Joules of work are needed. the time taken to complete the project is 20s. How much power is needed?
A
10,000 J/s
B
1,000,000 J/s
C
200,020 J/s
D
0.0001 J/s
7) The acceleration of a dog sled depends on the force provided by the dogs and the -
A
volume of the sled
B
weight of the sled
C
mass of the sled
D
friction of the sled
8) A student pushes a grocery cart with a 32.1N moving it 15.7m. How much work was done?
A
0.5J
B
561.8J
C
2.0J
D
504.0J
9) the amount of work necessary to move a dirt pile was 620J. The amount of force used to move the dirt pile was 28.2N. How far was the dirt pile moved?
A
17,484m
B
28m
C
22m
D
13,640m
10) If it takes a force of 2000N to move a crate at a rate of 3.4 m/s/s, what is the mass of the object?
A
294.1kg
B
6,800kg
C
588.2kg
D
13,600kg
*select an answer for all questions
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