Kinetic energy

Kinetic energy

Assessment

Interactive Video

Science, Physics, Engineering, Chemistry

6th - 12th Grade

Hard

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The video explains that kinetic energy is calculated as half the mass of a moving object multiplied by the square of its velocity. It also discusses how, when a car brakes, some of its kinetic energy is converted into thermal energy in the brake discs, which can result in significant heat transfer, especially in fast-moving cars.

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2 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

In what form is some of the kinetic energy converted when a car brakes?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What can be said about the amount of heat transferred in a very fast car during braking?

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