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Energy, Work, and Power

Authored by Lisa Thompson

Science

9th Grade

NGSS covered

Used 2+ times

Energy, Work, and Power
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A weight-lifter raises a 2000N weight through a vertical height of 2.0m in 0.80s. What useful power does he develop in doing this?

800 W

700W

4000W

5000W

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

A

B

C

D

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Groot rescues Rocket from the bottom of a deep pit. Groot expends 1000 J of energy lifting Rocket who has a mass of 50 kg out of the pit. How deep is the pit?

0.5 m

2 m

4 m

10 m

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How do you calculate power?

P = W/t

P = E/t

P = w * t

P = bbq/chicken

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The SI unit of work is?

Joules

Watts

Newtons

meters

Tags

NGSS.HS-PS2-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Gravitational potential energy depends on the ________ and ________ of the object. 

Height and mass

Friction and movement

Mass and Movement

Height and Friction 

Tags

NGSS.MS-PS3-2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why does the total amount of mechanical energy stay constant in a system?

energy is not created or destroyed

energy leaves

energy enters

energy is not converted from one form into another

Tags

NGSS.MS-PS3-5

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