gsce physics equations

for falling objects when there’s no air resistance

energy lost from the gpe store = energy gained in the kinetic energy store

equation for kinetic energy

½ x mass(kg) x speed(m/s)²

equation for gravitational potential energy

mass(kg) x gravitational field strength(N/kg)

equation elastic potential

½ x spring constant(N/m) x extension(m)²

specific heat capacity equation

change in thermal energy(J) = mass(kg) x specific heat capacity(J/kg°C) x change in temperature(°C)

power equation using energy transferred

energy transferred(J)/time|(s)

power equation using work done

power(W) = work done(J)/time(s)

efficiency equation

useful output energy transfer/total input energy transfer

efficiency equation for power

useful power output/total power output

charge equation

current(A) x time(s)

potential difference and resistance equation

potential difference(V) = current(A) x resistance(ohms)

power equation using charge

energy transferred(j)= charge flow(C) x potential difference(V)

power equation without resistance

current(a)²xresistance(ohms)

density equation (kg/m³)

mass(kg) / volume(m³)

specific latent heat equation

mass(m) x specific latent heat(L)

gravitational field strength equation

weight(n) = mass(kg) x gravitational field strength(N/kg)