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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
inertia
B
power
C
work
D
force
2) The correct equation for power is -
A
mass/volume
B
work/time
C
work output/work input
D
force x distance
3) The amount of work completed in a certain amount of time is
A
power
B
mechanical advantage
C
work
D
mechanical efficiency
4) What is being performed when a force is used to move an object a distance?
A
power
B
force
C
motion
D
work
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 release more gas emissions
B
It will need less force to move.
C
It will require more fuel to operate
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
0.0001 J/s
D
200,020 J/s
7) The acceleration of a dog sled depends on the force provided by the dogs and the -
A
friction of the sled
B
mass of the sled
C
volume of the sled
D
weight of the sled
8) A student pushes a grocery cart with a 32.1N moving it 15.7m. How much work was done?
A
561.8J
B
2.0J
C
0.5J
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
22m
C
13,640m
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
6,800kg
B
294.1kg
C
13,600kg
D
588.2kg
*select an answer for all questions
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