IPC: Mechanical Energy

How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?

• 27 J
• 18 J
• 9 J
• 2 J

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As mass increases, KE ...

• increases
• decreases
• stays the same

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NGSS.MS-PS3-1

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As the velocity of an object decreases its KE will...

• increase
• decrease
• stay the same

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NGSS.MS-PS3-1

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Which has a greater impact on KE?

• mass
• velocity

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The Law of Conservation of Energy states that

• energy cannot be created nor destroyed, only transformed or transferred
• energy can be destroyed but not created
• energy can be created but not destroyed

A rabbit of mass 3kg walks at a speed of 0.5m/s. Calculate its kinetic energy.

• 0.5 J
• 0.75 J
• 0.255 J
• 0.375 J

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What kind of energy is in a moving skateboard?

• Potential
• Kinetic
• Both potential and kinetic energy
• none of the above

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NGSS.MS-PS3-1

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At which point is kinetic energy greatest? 

• W
• X
• Y
• Z

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NGSS.MS-PS3-1

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What happens when the rope is cut?

• The Weight will fall.
• The potential energy is changed to kinetic energy
• The kinetic energy is changed to potential energy
• Nothing will happen

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NGSS.MS-PS3-4

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What would have the greatest kinetic energy?

• A car driving down a hill.
• A person running down a hill. 
• A ball rolling down a hill. 
• leaves rolling down a hill 

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NGSS.MS-PS3-1

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