Understanding Work and Energy Concepts

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NGSS.MS-PS3-5

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NGSS.MS-PS3-2

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NGSS.MS-PS3-5

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NGSS.MS-PS3-5

NGSS.MS-PS2-2

NGSS.MS-PS3-4

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NGSS.MS-PS3-2

It took 500 Newtons of force to push a car four meters. How much work was done?

• 2000 J

• 125 J

• 0.008 J

• 500 J

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NGSS.MS-PS3-5

NGSS.MS-PS2-2

A force of 80 N is used to pull a 10-kg block at an angle of 60 degrees (shown above) to the right. If the block moves 5 meters to the right, how much work was done on the block.

• 4000 N*m

• 200 N*m

• 2000 N*m

• 346.4 N*m

• 400 N*m

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NGSS.MS-PS2-2

Which of the following situations shows work being done?

• A student is sitting in a chair and holding both boxes.
• A student is holding the large box 1 m above the floor.
• A student is standing and holding the small box.
• A student is lifting the small box 0.5 m from the floor to a table

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NGSS.MS-PS3-5

NGSS.MS-PS3-2

When force is used to move an object across a distance, this is called...

• effort

• power

• energy

• work

During a pull-up, a 90kg man raises himself by 80cm. Calculate the work done in a single pull-up.

• 720 Joules
• 72,000 Joules
• 1,125 Joules
• 112,500 Joules

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NGSS.MS-PS3-5

NGSS.MS-PS2-2

NGSS.MS-PS3-4