GCSE Physics AQA (single science) equations Paper 1 0.0 / 5 PhysicsEquations and FormulaeGCSENone Created by: Jess Kate 7131Created on: 20-04-19 16:44 Kinetic Energy Ek = ½ x m x v^{2} Ek = kinetic energy (J) m = mass (kg) v = velocity (m/s) 1 of 16 Elastic Potential Energy Ee = ½ x k x e² Ee = elastic potential energy (J) k = spring constant (N/m) e = extension (m) 2 of 16 Gravitational Potential Energy Ep = m x g x h Ep = elastic potential energy (J) m = mass (kg) h = height (m) 3 of 16 Change in Thermal Energy (specific heat capacity) ΔE = m x c x Δθ ΔE = change in thermal energy (J) m = mass (kg) c = specific heat capacity (J/Kg ℃) Δθ = change in temperature (℃ ) 4 of 16 Power P = E / t P = power (W) E = energy (J) t = time (s) 5 of 16 Efficiency Efficiency = useful output energy transfer / total input energy transfer Efficiency = useful power output / total power input 6 of 16 Charge Flow Q = I x t Q = charge flow (C) I = current (A) t = time (s) 7 of 16 Potential Difference V = I x R V = potential differnce (V) I = current (A) R = resistance (Ω) 8 of 16 Power (work done) P = W / t P = power (W) W = work done (J) t = time (s) 9 of 16 Power Content P = V x I P = power (W) V = potential difference (V) I = current (A) 10 of 16 Power Content pt2 P = R x I² P = power (W) R = resistance (Ω) I = current (A) 11 of 16 Energy Transfer E = P x t E = energy transferred (J) P = power (W) t = time (s) 12 of 16 Energy Transfer pt2 E = Q x V E = energy transferred (J) Q = charge flow (C) V = potential difference (V) 13 of 16 Density ρ = m / v ρ = density (kg/m³) m = mass (kg) v = volume (m³) 14 of 16 Specific Latent Heat E = m x L E = energy for a change of state (J) m = mass (kg) L = specific latent heat (J/kg) 15 of 16 Pressure in Gases p x V = constant p = pressure (Pa) V = volume (m³) 16 of 16

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