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Physics revision year 9 > Equations > Flashcards

Equations Flashcards

1
Q

What is the equation for efficiency?

A

efficiency= useful energy output/total energy output x 100%

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2
Q

What is the equation for density?

A

density= mass/volume

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3
Q

What is the equation for pressure?

A

pressure= force/area

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4
Q

What is the equation for pressure difference?

A

pressure difference= height x density x gravitational field strength

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5
Q

What is the equation for average speed?

A

average speed= distance moved/time taken

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6
Q

What is the equation for acceleration?

A

acceleration= change in velocity/time taken

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7
Q

What is the equation for force?

A

force= mass x acceleration

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8
Q

What is the equation for weight?

A

weight= mass x gravitational field strength

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Physics revision year 9 (3 decks)

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