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Work and Energy Review

Work and Energy Review

Assessment

Presentation

Physics

11th Grade

Practice Problem

Medium

Created by

Michael Craney

Used 1+ times

FREE Resource

12 Slides • 15 Questions

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Match

Match the term to its correct definition::

Work

Kinetic Energy

Potential Energy

Power

Joule

The product of force and displacement

The energy of a body due to its motion

The energy stored in an object due to its position

The rate at which work is done

A unit of energy

14

Open Ended

When is no work done, even if you’re applying a force?

15

Open Ended

Give one example of positive work and one of negative work.

16

Open Ended

What does it mean if mechanical energy is conserved?

17

Multiple Choice

A student pushes a box with a force of 50 N across a floor for 4 meters at an angle of 0°.
How much work is done?

1
250 J
2
150 J
3
100 J
4
200 J

18

Multiple Choice

A 60 kg skateboarder moves at 5 m/s.
What is his kinetic energy?

1
300 J
2
750 J
3
1000 J
4
500 J

19

Multiple Choice

A rock is lifted to a shelf 2 meters high. It has a mass of 10 kg.
What is its gravitational potential energy?

1
196.2 Joules
2

302.4 Joules

3

114.6 Joules

4

50.2 Joules

20

Open Ended

Describe how energy changes as a ball is thrown straight up and comes back down.

21

Multiple Choice

A 2.0 kg object is dropped from a height of 10 meters.
What is its speed just before it hits the ground (neglect air resistance)?

1
20.0 m/s
2
14.0 m/s
3
9.8 m/s
4
5.0 m/s

22

Multiple Choice

A student runs up a flight of stairs 5.0 meters high in 7.0 seconds. Her mass is 55 kg. How much work did she do?

1

3223.25 J

2
2697.75 J
3

2017.66 J

4

1502.45 J

23

Multiple Choice

A student runs up a flight of stairs 5.0 meters high in 7.0 seconds. Her mass is 55 kg.
What was her power output?

1

250.23 W

2

506.43 W

3
384.32 W
4

321.62 W

24

Multiple Choice

A spring with a spring constant of 200 N/m is compressed by 0.1 m. What is the elastic potential energy stored in the spring?

1
2 Joules
2
0.5 Joules
3
0.1 Joules
4
1 Joule

25

Multiple Choice

A toy car with a mass of 0.50 kg is launched by a compressed spring. The spring does 2.0 J of work on the car. What is the car's speed just after it is launched?

1

4.02 m/s

2
3.50 m/s
3

1.57 m/s

4
2.83 m/s

26

Multiple Choice

A car engine provides 1.2 × 10⁵ J of work in 8.0 seconds.
What is the average power of the engine in watts?

1
15000 W
2
20000 W
3
18000 W
4
12000 W

27

Multiple Choice

A sled is pulled across snow with a 100 N force at an angle of 30° to the horizontal for 20 meters.
How much work is done by the pulling force?

1
173.2 J
2

152.5 J

3

203.6 J

4

104.7 J

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