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AQA Physics equation
GCSE equations that need to be learnt
| Question | Answer |
|---|---|
| E = Pt | Energy = power x time |
| E (k) = 1/2 | |
| E (p) = mgh | Gravitational potential energy = mass x gravitational field strength x height change |
| w = mg | Weight = mass x gravitational field strength |
| W = Fs | work done = force x distance |
| What is the efficiency equation? | Efficiency = useful energy transferred / total energy input |
| V = IR | Potential difference = current x resistance |
| E = VQ | Energy = potential difference x charge |
| Q= It | Charge = current x time |
| P = VI | Power = potential difference x current ' |
| v = fλ | Wave speed = frequency x wavelength |