# physics equations year 10 mocks

- Created by: tia5303
- Created on: 13-07-20 22:06

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- physics equations
- energy transferred(J)= charge (c) x potential difference (v)
- power(W)= potential difference(v) x resistance(A)
- or... (charge) x resistance (ohms)

- wave speed (m/s)= frequency (hz) x wavelength (m)
- density(kg/m ) = mass (kg) / volume (m )
- distance travelled (m) = speed (m/s) x time (s)
- acceleration (m/s ) = change in velocity (m/s) / time (s)
- pressure (Pa) = force normal to a surface (N) / area of that surface (m )
- charge flow (c) = current (A) x time (s)
- potential difference (v) = current (A) x resistance (ohms)
- change in thermal energy (J) = mass (kg) x specific heat capacity(J/kg ) x change in temperature ( )
- thermal energy for a change in state (J) = mass (kg) x specific latent heat (J/kg)
- force on a conductor (at right angles to a magnetic field) carrying a current (N) = magnetic field strength (T) x current (A) x length (m)
- potential difference across a primary coil (V) / potential difference across a secondary coil (v) = no. of turns in a primary coil / no. of turns in secondary coil

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