Intro to Kinetic & Potential Energy Concepts Without Math.

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Question 1: If two objects are going the same speed but one is lighter, does the lighter one have more kinetic energy?

• No

• Yes

Answer explanation

No. The heavier object has more kinetic energy.

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Does a stationary object (one that is not moving) have kinetic energy?

• No

• Yes

Answer explanation

No. Only moving objects have kinetic energy.

Does a boat get more kinetic energy when it goes faster, even if on a calm lake?  

• No

• Yes

Answer explanation

Yes. Increasing speed increases an object’s kinetic energy.

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If two objects are at equal heights but one is heavier, do they have the same potential energy?

• No

• Yes

Answer explanation

No. The heavier object has more potential energy.

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Does a roller coaster train at the very bottom of a  roller coaster track have potential energy?

• No

• Yes

Answer explanation

No. If it’s at the very bottom, there is no more potential energy.

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xIs it possible to change potential energy into kinetic energy?

• No

• Yes

Answer explanation

Yes. This happens when an object falls, rolls down a hill or a pendulum swings.

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When swinging, will a pendulum change its amount of kinetic energy?

• No

• Yes

Answer explanation

Yes. When it’s mid-cycle (at the bottom) it is at maximum speed and kinetic energy, but when at its peak height (on either side), there is no kinetic energy.

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