# Physics Equations

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Hookes Law
Force=spring constant x extension (F=kx)
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Density
Density=mass/volume (P=mv)
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Pressure
Pressure=force/area (P=f/a)
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Pressure under water
Pressure below surface of liquid= fluid depth x fluid density x gravitational field strength (P=hpg)
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Moments
Moment=force x perpendicular distance from pivot (Moment=fd)
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Momentum
Momentum=mass x velocity (P=mv)
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Impulse
Impulse=force x time (Impulse=ft)
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Energy
Work done=force x distance moved in direction of force (W=fs)
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Energy
Kinetic Energy=1/2 x mass x velocity 2 (KE=1/2 x mv 2)
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Energy
GPE=mass x gravitational field strength x height (GPE=mgh)
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Energy
Power=work done/time taken=energy transferred/time taken (P=w/t)
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## Other cards in this set

### Card 2

#### Front

Density=mass/volume (P=mv)

Density

### Card 3

#### Front

Pressure=force/area (P=f/a)

### Card 4

#### Front

Pressure below surface of liquid= fluid depth x fluid density x gravitational field strength (P=hpg)

### Card 5

#### Front

Moment=force x perpendicular distance from pivot (Moment=fd)