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GCSE Physics > Forces And Motion > Flashcards

Forces And Motion Flashcards

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1
Q

What is the equation for acceleration

A

Change in velocity / change in time

U-v/t

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2
Q

What is the equation for kinetic energy

A

Kinetic energy = half MV squared

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3
Q

What is work done

A

Energy transferred

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4
Q

What is the equation for work done

A

Wd = F x d

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5
Q

What is power

A

Power is the rate of doing work. Work done \ energy transferred per unit time

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6
Q

What is the equation for power

A

Energy transferred (work done) / time taken = power

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7
Q

What is efficiency

A

The efficiency of a process or device is a measure of the proportion of the input energy that is transferred usefully.

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8
Q

What are the two similar equations for efficiency

A

Useful energy output/total energy input times 100%

Useful power output/total power input times 100%

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GCSE Physics (5 decks)

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