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Work Power

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Work Power
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Use one of these equations to answer this question (W = Fd) and (P = W/t): Toph pushes against the turret with 500 Newtons of Force. It stays in place. How much work has been done?

1200 Joules of work

500 Joules of work

No work has been done

200,000 Joules of work

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Two workers use 100 N of force to move a sofa 2 meters in 2 seconds. How much power is required?

100 watts

400 watts

104 watts

50 watts

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The ability to do work or cause change:

work

energy

momentum

power

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

12 J

8 J

20 J

5 J

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

18 m

4 m

10 m

6 m

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If the mass of the cart is 15kg, how much is the potential energy of the cart?

0J

1.2J

6J

58.8J

Tags

NGSS.MS-PS3-2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Work done = Force x _________

a. distance

b. acceleration

c. velocity

d. speed

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