equations list

distance travelled

average speed x time

acceleration

change in velocity / time taken

force

mass x acceleration

weight

mass x gravitational field strength

momentum

mass x velocity

change in gravitational potential energy

mass x gravitational field strength x change in vertical height

kinetic energy

½ x mass x (speed)²

efficiency

useful energy transferred by device / total energy supplied to device

wave speed

frequency x wavelength

wave speed

distance / time

work done

force x distance moved in direction of force

power

work done / time taken

energy transferred

charge moved x potential difference

charge

current x time

power

energy transferred / time

electrical power

current x potential difference

electrical power

(current)² x resistance

density

mass / volume

force exerted on spring

spring constant x extension

(final velocity)² - (initial velocity)²

2 x acceleration x distance

force

change in momentum / time

energy transferred

current x potential difference x time

force on conductor at right angles to magnetic field carrying current

magnetic flux density x current x length

potential difference across primary coil x current in primary coil

potential difference across secondary coil x current in secondary coil

change in thermal energy

mass x specific heat capacity x change in temperature

thermal energy for change of state

mass x specific latent heat

energy transferred in stretching

½ x spring constant x (extension)²

moment of force

force x distance normal to direction of force

pressure

force normal to surface / area of surface

potential difference across primary coil / potential difference across secondary coil

number of turns in primary coil / number of turns in secondary coil

pressure due to column of liquid

height of column x density of liquid x gravitational field strength