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| Question | Answer |
| Equation for average | Distance moved/Time taken |
| Equation for Force | Mass x acceleration |
| Equation for acceleration | change in velocity/time taken |
| Equation for momentum | mass x velocity |
| Equation for density | Mass / volume |
| Equation for work done | Force x distance moved |
| Equation for kinetic energy | 1/2 x mass x (speed x speed) |
| Equation for gravitational potential energy | mass x g x height g = 10 kg on earth |
| Equation for weight | mass x gravitational field strength |
| Equation for pressure | Force / area Rule=smaller the area bigger the pressure |
| Equation for moment | Force x perpendicular distance from the pivot |
| Equation for charge | Current x time |
| Equation for voltage | current x resistance |
| Equation for electrical power | current x voltage |
| Equation for wave speed | frequency x wavelength |
| n = refractive index | n = sin i / sin r |
| sin c c = critical angle | 1 / n |
| Equation for efficiency | Useful energy output / total energy input |
| Equation for pressure difference | Height x density x g |
| Input (primary) voltage / output (secondary) voltage | Primary turns / Secondary turns |
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