Kinetic Energy

Kinetic energy is the energy of an object in motion. Objects that are moving faster have more kinetic energy than objects that are moving slower (if both objects have the same mass). If two objects have different masses, the more massive objects has more kinetic energy (if they are moving at the same speed).

• I don't get it.

• GOT IT!

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NGSS.MS-PS3-1

The car and the girl are moving at the same velocity (5 m/s) Which of the following statements is correct?

• The car has LESS kinetic energy (because it has more mass than the girl)

• The car has MORE kinetic energy (because it has more mass than the girl)

• The car and the girl have the SAME amount of kinetic energy (because they are moving at the same speed)

• The girl has the MORE kinetic energy (because she has less mass than the car)

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Kinetic energy is...

• energy carried in ultraviolet waves

• energy stored in food

• energy in motion

• energy from splitting an atom

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NGSS.HS-PS3-2

NGSS.HS-PS2-1

What two factors affect an object's kinetic energy?

• area and volume

• mass and weight

• weight and height

• mass and speed

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NGSS.MS-PS3-1

Increasing an object's speed will increase its kinetic energy.

• false

• true

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NGSS.MS-PS3-1

Increasing an object's mass will increase its kinetic energy.

• true

• false

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NGSS.MS-PS3-1

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When do you have more kinetic energy?

• When I am running down the hallway

• When I am walking down the hallway

• I always have the same kinetic energy

• I need more information

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Who has more kinetic energy?

• Mr. Watson walking down the hallway at the same speed as Isaiah

• Isaiah walking down the hallway at the same speed as Mr. Watson

• They have the same amount of kinetic energy

• I need more information

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NGSS.HS-PS3-2

If you are sledding downhill, do you have more kinetic energy at the top of the hill or at the bottom of the hill?

• At the top because you are going slower

• At the bottom because you are going faster

• Kinetic energy does not change as you go downhill

• I need more information

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Jose M. runs down the hallway and remembers that he forgot his bookbag in the classroom. He runs back into the classroom and grabs his bookbag and runs out at the SAME SPEED. When does he have more kinetic energy?

• His kinetic energy is the same

• I need more information

• His kinetic energy is greater WITHOUT his bookbag

• His kinetic energy is greater WITH his bookbag

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NGSS.HS-PS3-2