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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
work
B
inertia
C
force
D
power
2) The correct equation for power is -
A
force x distance
B
mass/volume
C
work/time
D
work output/work input
3) The amount of work completed in a certain amount of time is
A
work
B
mechanical advantage
C
mechanical efficiency
D
power
4) What is being performed when a force is used to move an object a distance?
A
work
B
power
C
force
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 have a greater gravitational attraction to the road
B
It will require more fuel to operate
C
It will release more gas emissions
D
It will need less force to move.
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
1,000,000 J/s
B
200,020 J/s
C
10,000 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
weight of the sled
B
mass of the sled
C
friction of the sled
D
volume of the sled
8) A student pushes a grocery cart with a 32.1N moving it 15.7m. How much work was done?
A
504.0J
B
2.0J
C
561.8J
D
0.5J
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
13,640m
B
17,484m
C
22m
D
28m
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
13,600kg
B
6,800kg
C
588.2kg
D
294.1kg
*select an answer for all questions
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