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work and power

Authored by Barbara Vanatta

Physics

11th Grade

NGSS covered

Used 1+ times

work and power
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30 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the equation for Work?

W=1/2 (mv2)

W=Fd

W=1/2 (kx2)

W=mgh

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A joule is a unit of

power

heat

energy

current

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A 10 kg box is pulled a distance of 3m by a force of 30 N.

The work done is

9 J

30 J

90 J

900 J

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is:

320 W

400 W

500 W

2 000 W

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following statements are true about power?

If person A and person B do the same job but person B does it faster, then person A does more work but person B has more power.

Powerful people or powerful machines are simply people or machines which always do a lot of work.

Power refers to how fast work is done upon an object.

None of these

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Finish this sentence:  The higher the wattage....

The more the power
The higher the potential energy
The more work that's being done
The lower the potential energy

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If you push a coffee mug 1.4 m using a force of 5 N, the work done on the mug is?

7 J

6 J

8 J

9 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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