OxNotes > GCSE Physics > GCSE Physics Equations & Formulae - Cheat Sheet
Formula Cheat Sheet:
One simple sheet of formulae and equations, for GCSE Physics.
AQA below. Scroll down further for OCR.
AQA below. Scroll down further for OCR.
OCR GCSE Physics Formula Sheet:
See the OCR (9-1) Physics Equation list below. You need to learn the following equations:
Format: 'Equation in word form' 'Equation in symbol form'
P1 Matter
P2 Forces
P3 Electricity
Format: 'Equation in word form' 'Equation in symbol form'
P1 Matter
- Density (kg/m³) = mass (kg)/volume (m³) ρ = m/V
P2 Forces
- Distance travelled (m) = speed (m/s) × time(s) s = v/t
- Acceleration (m/s²) = change in velocity (m/s)/time(s) a = (v-u)/t
- Kinetic energy (J) = 0.5 × mass (kg) × (speed (m/s))² KE = ½ mv²
- Force (N) = mass (kg) × acceleration (m/s²) F = ma
- Work done (J) = force (N) × distance (m) (along the line of action of the force) WD = F x D
- Power (W) = work done (J)/time(s) P = WD / t
- Momentum (kgm/s) = mass (kg) × velocity (m/s) p = mv
- Weight = gravity force (N) = mass (kg) × gravitational field strength, g (N/kg) F = W = mg
- Potential energy (J) (in a gravity field) = mass (kg) × height (m) × gravitational field strength, g (N/kg) GPE = mgh
- Pressure (Pa) = Force (N) / Area (m²) (Separate Science only)
- Moment of a force (Nm) = force (N) x distance (m) (normal to the direction of the force) (Separate Science only)
P3 Electricity
- Charge flow (C) = current (A) × time (s) Q = It
- Potential difference (V) = current (A) × resistance (Ω) V = IR
- Energy transferred (J) = charge (C) × potential difference (V) E = QV
- Power (W) = potential difference (V) × current (A) = (current (A))² × resistance (Ω) P = IV = I²R
- Energy transferred (J, kWh) = power (W, kW) × time (s, h) E = Pt
P5 Waves
P7 Energy
P8 Global Challenges
- Wave speed (m/s) = frequency (Hz) × wavelength (m) v = fλ
P7 Energy
- Efficiency = useful output energy transfer (J)/input energy transfer (J)
P8 Global Challenges
- Stopping distance (m) = thinking distance (m) + braking distance (m)
You will be given the following formulae in the exam (OCR GCSE):
P1 Matter
P2 Forces
P4 Magnetism
P1 Matter
- Change in thermal energy (J) = mass (kg) × specific heat capacity (J/kg°C) × change in temperature (°C) E = mCΔT
- Thermal energy for a change in state (J) = mass (kg) × specific latent heat (J/kg) E = mL
- Gases: Pressure (Pa) x volume (m³) = constant (for a given mass of gas and at a constant temperature) (Separate Science only)
- Pressure due to a column of liquid: (Pa) = height of column (m) x density of liquid (kg/m³) x g (N/kg) (Triple only) (Separate Science only)
P2 Forces
- Final velocity (m/s))² – (initial velocity (m/s))² = 2 × acceleration (m/s²) × distance (m) v² – u² = 2as
- Energy transferred in stretching (J) = 0.5 × spring constant (N/m) × (extension (m))² E = ½ ke²
P4 Magnetism
- Force on a conductor (at right angles to a magnetic field) carrying a current (N) = magnetic field strength (T) × current (A) × length (m) (Higher only) F = BIl
- Potential difference across primary coil (V) / potential difference across secondary coil (V) = Number of turns in primary coil / number of turns in secondary coil (Higher only) (Separate Science only) Vₚ / Vₛ = Nₚ / Nₛ