# Edexcel physics equations

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SP1: How do you find distance?
Distance travelled= average speed x time
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SP1: What's the equation for acceleration?
Acceleration= change in velocity ÷ time
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SP2: How do you calculate force?
Force= mass x acceleration
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SP2: What's the calculation for weight?
Weight= mass x gravitational field strength
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SP2: How do you calculate momentum?
Momentum= mass x velocity
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SP2: How do you find the work done?
Work done= force x distance moved in the direction of the force
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SP2: What's the equation for kinetic energy?
Kinetic energy= 1/2 x mass x (speed)²
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SP3: How do you calculate the change in gravitational potential energy?
Change in gravitational potential energy= mass x gravitational field strength x change in vertical height
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SP3: What's the calculation for efficiency?
Efficiency= (useful energy tranferred by the device)/(total energy supplied to the device)
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SP4: How do you calculate wave speed (1)?
Wave speed= frequency x wavelength (λ)
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SP4: How do you calculate wave speed (2)?
Wave speed= distance ÷ time
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SP8: How do you find power?
Power= work done ÷ time taken
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SP9: How do you calculate a moment of a force?
Moment of a force= force x distance normal to the direction of the force
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SP10: How do you calculate charge?
Charge= current x time
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SP10: What's the equation for energy transferred?
Energy transferred= charge moved x potential difference
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SP10: How do you calculate the potential difference?
Potential difference= current x resistance (Ohms Law)
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SP10: What's the calculation for power?
Power= energy transferred ÷ time taken
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SP10: How do you find the electrical power (1)?
Electrical power= current x potential difference
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SP10: How do you find the electrical power (2)?
Electrical power= current squared x resistance
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SP14: How do you calculate the density?
Density= mass ÷ volume
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SP15: How do you find the force exerted on a spring?
Force exerted on a spring= spring constant x extension
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SP15: What's the equation for pressure?
Pressure= force normal to surface ÷ area of surface
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## Other cards in this set

### Card 2

#### Front

Acceleration= change in velocity ÷ time

#### Back

SP1: What's the equation for acceleration?

### Card 3

#### Front

Force= mass x acceleration

#### Back ### Card 4

#### Front

Weight= mass x gravitational field strength

#### Back ### Card 5

#### Front

Momentum= mass x velocity

#### Back 