Physics Equations 0.0 / 5 ? PhysicsAllGCSEOCR Created by: ElliottWest22Created on: 24-11-17 12:19 Density density(kg/m3) = mass (kg) / volume (m3) 1 of 20 Distance distance (m) = speed (m/s) x time (s) 2 of 20 Acceleration acceleration (m/s2) = change in velocity (m/s) / time (s) 3 of 20 Kinetic Energy kinetic energy (J) = 0.5 x mass (kg) x (speed(m/s))2 4 of 20 Force force (N) = mass (kg) x acceleration (m/s2) 5 of 20 Momentum momentum (kgm/s) = mass (kg) x velocity (m/s) 6 of 20 Work Done work done (J) = force (N) x distance (m) 7 of 20 Power 1 power (W) = work done (J) / time (S) 8 of 20 Force Exerted By A Spring force exerted by a spring (N) = extension (m) x spring constant (N/m) 9 of 20 Gravity Force gravity force (N) = mass (kg) x gravitational field strength, g (N/kg) 10 of 20 Gravitational Potential Energy (in a gravity field) potential energy (J) = mass (kg) x height (m) x gravitational field strength, g (N/kg) 11 of 20 Pressure pressure (Pa) = force normal to a surface (N) / area of the surface (m2) 12 of 20 Moment of a Force moment of a force (Nm) = force (N) x distance (m) 13 of 20 Charge Flow charge flow (C) = current (A) x time (S) 14 of 20 Potential Difference potential difference (V) = current (A) x resistance (Ohms) 15 of 20 Energy Transferred energy transferred (J) = charge (C) x potential difference (V) 16 of 20 Power 2 power (W) = potential difference (V) x current (A) = (current(A))2 x resistance (Ohms) 17 of 20 Energy Transferred (J, kWh) energy transferred (J, kWh) = power (W, kW) x time (s, h) 18 of 20 Wave Speed wave speed (m/s) = frequency (Hz) x wavelength (m) 19 of 20 Efficency Efficency = useful output energy transfer (J) / input energy transfer (J) 20 of 20
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