# 9th Period Energy Test Review

25 Questions | Total Attempts: 37

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This online quiz will help you prep for your Energy Test, which covers all three of the energy sections we have done so far in our groups

• 1.
The amount of work done an object depends on...
• A.

The force on the object

• B.

The displacement of the object

• C.

The angle between the displacement and the force

• D.

All of the above

• 2.
F=102.5 N d= 22 m The force and the displacement are in the same direction.
• A.

This is an example of positive work

• B.

This is an example of negative work

• C.

This is a situation where there is no work

• D.

This is a situation where it is impossible to tell how much work was done.

• 3.
You push and push against a door, but it won't budge.
• A.

This is an example of positive work

• B.

This is an example of negative work

• C.

This is a situation where there is no work

• D.

This is a situation where it is impossible to tell how much work was done.

• 4.
A force of 10 N works on a ball over a distance of 5 m. The force is perpendicular to the displacement of the ball. What is the total work done by the force?
• A.

-50 J

• B.

0 J

• C.

50 J

• D.

10 J

• 5.
Energy is measured in the same units as
• A.

Work

• B.

Force

• C.

Power

• D.

Acceleration

• 6.
Power is measured in....
• A.

Joules

• B.

Watts

• C.

Newtons

• D.

Seconds

• 7.
A box with 1 kg of mass experiences a net work of 100 J. What is the change in kinetic energy of the box? Assume the box is on a level surface.
• A.

0 J

• B.

10 J

• C.

100 J

• D.

There is not enough information to answer this question

• 8.
A box is moving to the right. A force is acting upward on the box.
• A.

The force is doing positive work on the box.

• B.

The force is doing negative work on the box.

• C.

The force is not doing any work on the box.

• 9.
A car is moving to the left. A force is acting on it to the right. The force is doing _____________ work on the car.
• A.

Positive

• B.

Negative

• C.

No

• D.

Power

• 10.
A skateboarder glides from the top of a ramp to the bottom. Ignore air resistance and friction.
• A.

Positive work is being done on the skateboard

• B.

Negative work is being done on the skateboard

• C.

No work is being done on the skateboard.

• 11.
A hammer drives a nail into a board.
• A.

The hammer did positive work on the nail.

• B.

The hammer did negative work on the nail

• C.

The hammer did no work on the nail.

• 12.
An arrow is drawn back, giving it 20 J of potential energy. Neglect friction and air resistance. After it is released, the arrow would have...
• A.

20 J of kinetic energy

• B.

20 J of mechanical energy

• C.

20 J of potential energy

• D.

A and B

• E.

A and C

• 13.
An arrow is drawn back, giving it 20 J of potential energy. DO NOT neglect friction and air resistance. After it is released, the arrow would have...
• A.

Exactly 20 J of kinetic energy

• B.

Less than 20 J of kinetic energy

• C.

More than 20 J of kinetic energy

• 14.
A diver has a mass of 50 kg. She climbs the diving board, which is 3 m high, and steps off. How much kinetic energy will she have when she hits the water?
• A.

53 J

• B.

0 J

• C.

150 J

• D.

1470 J

• 15.
A ball is thrown up straight in the air with 50 J of kinetic energy. Neglect friction and air resistance. At apogee, the ball would have...
• A.

50 J of kinetic energy

• B.

50 J of potential energy

• C.

100 J of mechanical energy

• D.

50 J of work

• 16.
A 10 kg lemur is running with a velocity of 2 m/s. What is the kinetic energy of this lemur?
• A.

2 J

• B.

40 J

• C.

20 J

• D.

0 J

• 17.
An object at rest can still have:
• A.

Mechanical Energy

• B.

Kinetic Energy

• C.

Potential Energy

• D.

A and B

• E.

A and C

• 18.
A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of ____, but different amounts of ____. Pick the two words which fill in the blanks in their respective order.
• A.

Work, Force

• B.

Work, Power

• C.

Energy, time

• D.

Power, work

• E.

Force, time

• 19.
Where would you expect the potential energy to be the greatest?
• A.

A

• B.

B

• C.

C

• D.

D

• 20.
Where would you expect the kinetic energy to be the greatest?
• A.

A

• B.

B

• C.

C

• D.

D

• 21.
In which of the scenarios are you NOT doing work?
• A.

You lift a box onto a truck

• B.

You climb a rope.

• C.

You climb a rope.

• D.

You push against a car until your muscles begin to shake but it wonâ€™t move.

• 22.
A child uses a bucket on a rope to lift her puppy up to her tree fort. She  does 1000 J of lifting in 20 seconds. How much power did she do?
• A.

20 W

• B.

50 W

• C.

100 W

• D.

1000 W

• 23.
Which of the following is true about the roller coaster's energy at point C?
• A.

It has less potential energy than Point A and more potential energy than Point B

• B.

It has less potential energy than Point A and more kinetic energy than Point B

• C.

It has less potential energy than Point B and less kinetic energy than Point A

• D.

It has less kinetic energy than Point B and more potential energy than Point A

• 24.
A car has 10,000 J of kinetic energy. As it climbs a hill, a force of friction does 500 J of work on it. At the top of the hill, the car has 5000 J of potential energy. What is the car's kinetic energy at the top of the hill?
• A.

20 J

• B.

-500 J

• C.

3500 J

• D.

4500 J

• 25.
An astronaut is originally at rest. Then, her jet pack does 200 N of work on her as she moves forward 12 m. What is her final kinetic energy?
• A.

2400 J

• B.

200 J

• C.

1800 J

• D.

0 J

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