Formative 7A: Work Calculations

Jermaine used 12 newtons of force to push a box 4 meters down the driveway. How much work, measured in joules (J), did he do to move the box?

• 3 J

• 8 J

• 16 J

• 48 J

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GA.SPS8.d.

A baker pushes a cart full of rolls with a force of 20.0 N for a distance of 4.0 m. How much work does the baker do on the cart?

• 0.20 J

• 5.0 J

• 16 J

• 80 J

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GA.SPS8.d.

Perry is lifting a 45 kg box onto a counter that is 4 feet off the ground. If he does 200 J or work, how much force did he use to life the box?

• 11.25 N

• 180 N

• 50 N

• 800 N

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GA.SPS8.d.

Sally is pushing a wall in her classroom. She is applying 45 newtons of force and the work done is 0 joules. How far was she able to move the wall?

• 12 m

• 22.5 m

• 45 m

• 0 m

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GA.SPS8.d.

A 190,000 Watts engine can accelerate from rest to top speed in 9 seconds. How much work did the engine do? W=Watts x time

• 1,710,000 J

• 21,111 J

• 190,000 J

• 250,000 J

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GA.SPS8.d.