# Physics equations

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• Created by: Mxlly_a
• Created on: 05-05-16 14:21
average speed
average speed = distance / time
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acceleration
acceleration = change in velocity / time
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force
force = mass x acceleration
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weight
weight= mass x gravitational field strength
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momentum
momentum = mass x velocity
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momentum
momentum = force x perpendicular distance from pivot
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power
power = current x voltage
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voltage
voltage = current x time
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wave speed
wave speed = frequency x wavelength
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refractive index
n = sin I / sin R
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efficiency
efficiency = useful energy output / total energy input
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work done
work done = force x distance moved
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gravitational potential energy
gpe = mass x grams x height
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kinetic energy
kinetic energy = 1/2 x mass x speed^2
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energy transferred
energy transferred = work done
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density
density = mass / volume
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pressure
pressure = force / area
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pressure difference
pressure difference = height x density x grams
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voltage and turns
input (primary) volatage / output (secondary) voltage = primary turns / secondary turns
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input power and output power
input power = output power
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## Other cards in this set

### Card 2

#### Front

acceleration = change in velocity / time

acceleration

### Card 3

#### Front

force = mass x acceleration

### Card 4

#### Front

weight= mass x gravitational field strength

### Card 5

#### Front

momentum = mass x velocity