# GCSE Edexcel Physics Formulae

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- Created by: Georgia Walker
- Created on: 09-11-13 16:53

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- GCSE Physics Formulae
- Moments
- Moment = force x distance from pivot

- Motion
- Speed = distance/ time
- Acceleration= Change in velocity/ Time taken a = (v-u)/t

- Energy
- Energy transferred = work done
- Kinetic energy = ½ x mass x speed2 KE = 1/2 x m x v2
- Change in potential energy = mass x change in height x gravitational field strength*
- *Gravitational field strength takes into account the force of gravity. For calculations just consider it to be 10.

- Electricity
- Voltage = current x resistance V= I x R
- Electrical power = voltage x current P= I x V
- Charge = current x time Q= I x t

- Weight
- Weight = mass x gravitational field strength* W = m x g
- *Gravitational field strength takes into account the force of gravity. For calculations just consider it to be 10.

- Weight = mass x gravitational field strength* W = m x g
- Work
- Work done = Force x Distance moved in direction of force E= F x d

- Magnetism - transformers
- Input voltage/output voltage= primary turns/secondary turns

- Density
- Density= Mass/Volume

- Pressure
- Pressure = force/area
- Pressure difference= height x density x gravitational field strength

- Waves
- Wave speed = frequency x wavelength
- Refractive index = sin (angle of incidence) / sin (angle of refraction)
- Sin (critical angle) = 1/ refractive index

- Moments
- *Gravitational field strength takes into account the force of gravity. For calculations just consider it to be 10.
- Density= Mass/Volume
- Wave speed = frequency x wavelength
- Charge = current x time Q= I x t

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