PS - Work and Power - Chapter 6, Section 1

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

If 150 Joules of work is needed to move a box 10 meters, how much force was used? 

• 1500 N

• 15 N

• 1.5 N

• 150 N

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NGSS.MS-PS2-2

The amount of work done in a certain amount of time is known as 

• work
• effort force
• resistance force 
• power

Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power?

• Person A

• Person B

If 68 W of power is produced in 18 seconds, how much work is done?

• 1,224 J
• 0.264 J
• 3.77 J
• 12.24 J

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NGSS.MS-PS3-5

How much time is needed to produce 720 Joules of work if 90 watts of power is used? 

• 0.125 s
• 8 s
• 64800 s
• 80 s

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NGSS.MS-PS3-5

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

• 272 m
• 17 m
• 4.05 m
• 272 cm 

The unit used to measure power is the 

• Watt
• Newton
• Joule
• Newton*meter

If 360 J of work is needed to move a crate a distance of 4 m, what is the weight of the crate?

• 90 N

• 720 N

• 90 kg

• 720 W

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NGSS.MS-PS2-2

A runner exerts 240,000 J when she runs for 10 min. What is the runner's power?

• 400 W

• 600 W

• 400 J

• 600 J

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NGSS.MS-PS3-1

NGSS.MS-PS3-5