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Unit 7 Work and Power Notes

Unit 7 Work and Power Notes

Assessment

Presentation

Science

8th Grade

Practice Problem

Medium

NGSS
MS-PS2-1, MS-PS2-2, MS-PS3-1

Standards-aligned

Created by

Terra Lassalle

Used 44+ times

FREE Resource

6 Slides • 10 Questions

1

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2

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3

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4

Multiple Choice

Question image

Work or Not Work?

Hammering a nail.

1

WORK

2

NOT WORK

5

Multiple Choice

Question image

Work or Not Work?


Pushing a person in a wheelchair.

1

WORK

2

NOT WORK

6

Multiple Choice

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Work or Not Work?

A man holding 75kg above his head for 30 seconds.

1

WORK

2

NOT WORK

7

Open Ended

Question image

What is one way work, force, and motion apply to everyday life?

8

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9

Multiple Choice

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How much work does a horse do while moving a wagon 20 meters with a force of 300 Newtons?


1

600 J

2

60 J

3

6000 J

4

500 J

10

Multiple Choice

Question image

Tommy does 15 Joules of work to push his pencil 5 cm. How much force does he use?


1

3 N

2

6 N

3
75 N
4
150 N

11

Multiple Choice

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A man is sitting on a bench with a force of 350 Newtons. How much work has he done?


1

-350 N

2

350 N

3

0 N

4

1 N

12

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13

Multiple Choice

Question image

How much power does it take to kick a soccer ball a distance of 20 meters with 70 Joules of work in 5 seconds?

1

13 Watts

2

14 Watts

3

20 Watts

4

70 Watts

14

Multiple Choice

Question image

SpongeBob lifted 12 Newtons a distance of 2 meters in 3 seconds.  


How much work is done?

1

24 J

2

6 J

3

3 J

4

60 J

15

Multiple Choice

Question image

SpongeBob lifted 12 Newtons a distance of 2 meters in 3 seconds.  

What is his power output? 

1

2 W

2

4 W

3

6 W

4

8 W

16

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