Work, Energy, & Power Review

Wile E. Coyote eats a healthy breakfast before running after the Roadrunner. What is the energy transformation?

• Chemical potential to kinetic

• Kinetic to gravitational potential

• Elastic to kinetic

• Chemical potential to thermal

Tags

NGSS.HS-PS3-3

A ball rolls to the top of a frictionless hill. What is the energy transformation?

• gravitational potential to kinetic

• kinetic to thermal

• kinetic to gravitational potential

• chemical potential to kinetic

A child is at the top of a smooth slide and then slides down. At the bottom, the child comes to a stop when they reach the grass. What is the energy transformation?

• elastic potential to kinetic to gravitational potential

• gravitational potential to kinetic to elastic potential

• kinetic to gravitational potential to kinetic

• gravitational potential to kinetic to thermal

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NGSS.MS-PS3-5

A rock falls off a table and lands on a spring, squishing it. What is the energy transformation?

• gravitational potential to kinetic to gravitation potential

• kinetic to elastic potential to gravitational potential

• gravitational potential to kinetic to elastic potential

• chemical to thermal

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NGSS.MS-PS3-1

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A 3.0 kg ball is on a table 1.5 m above the ground. What is its gravitational potential energy?

• 4.5 J

• 44.1 J

• 3.4 J

• 29.4 J

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NGSS.MS-PS3-2

What is the kinetic energy of a 12 kg dog running at 3 m/s?

• 36 J

• 353 J

• 54 J

• 118 J

Tags

NGSS.HS-PS3-1

50 J of work is done lifting a 2.0 kg book in the air. How high was it lifted?

• 2.6 m

• 3.6 m

• 1.0 m

• 25 m

Tags

NGSS.HS-PS3-2

A bike goes from 0 m/s to 12 m/s in a time of 4 seconds. What was its acceleration?

• 12 m/s/s

• 4 m/s/s

• 3 m/s/s

• 0.33 m/s/s

Tags

NGSS.HS-PS2-1

Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who did more work?

• Bobby

• Carol

• They did the same amount of work

• Not enough information

Tags

NGSS.MS-PS3-2

Bobby lifts a book to the second floor in 20 seconds. Carol lifts the same book to the second floor in 10 seconds. Who used more power?

• Bobby

• Carol

• They did the same amount of work

• Not enough information