Energetic Questions

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

• 200 J
• 20.0J
• 100 J
• 10 J

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NGSS.HS-PS3-1

1/2 mv²

• KE
• PE
• Work
• Power

Tags

NGSS.HS-PS3-2

MGH

• KE
• PE
• Work
• Power

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NGSS.HS-PS2-4

NGSS.HS-PS3-1

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What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

What is the unit used to measure Power?

• Joule
• Watt
• Newton
• Pascal

Which has greater KE, a car traveling at 30 m/s or a second car that is 1/2 as massive, but traveling at 60 m/s?

• car 1
• car 2
• both have the same KE

How much kinetic energy does a moving object have if its mass is 100 kg and it is moving at a speed of 5 meters per second?

• 2,500 J
• 250 J
• 1,250 J
• 125,000 J

Tags

NGSS.HS-PS3-1

If you exert a force of 10 N to lift a box over 1 m how much work do you do.

• 11
• 10
• 5
• 20

If you do 40 joules of work lifting a 10N box, how high is the shelf you move it to.

• 400m
• 40m
• 50m
• 4m

Which of the following objects has the most kinetic energy?

• A 20 kg toddler running at 5 m/s
• A 50 kg toddler running at  30 m/s
• A 90 kg toddler running at 30 m/s
• A 100 kg  toddler running at 2 m/s

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2