Every GCSE Physics equation in two tables, the ones to learn by heart and the ones given on the sheet, then choosing and rearranging them.
What you will learn
- Recall the equations your board expects you to learn
- Choose the equation that links what you know to what you want
- Rearrange an equation, including ones with squares
- Check an equation with its units
Learn by heart (AQA)
AQA expects you to recall these.
Each comes with its units: put the numbers in using them.
| Quantity | Equation | Units |
|---|---|---|
| weight | W = m g | N, kg, N/kg |
| work done | W = F s | J, N, m |
| force on a spring | F = k e | N, N/m, m |
| moment (Physics only) | M = F d | N m, N, m |
| pressure (Physics only) | p = F ÷ A | Pa, N, m² |
| distance | s = v t | m, m/s, s |
| acceleration | a = Δv ÷ t | m/s², m/s, s |
| resultant force | F = m a | N, kg, m/s² |
| momentum (Higher) | p = m v | kg m/s, kg, m/s |
| kinetic energy | Ek = ½ m v² | J, kg, m/s |
| gain in gravitational potential energy | Ep = m g h | J, kg, N/kg, m |
| power | P = E ÷ t and P = W ÷ t | W, J, s |
| efficiency | useful output ÷ total input (energy or power) | no unit, or × 100 for % |
| wave speed | v = f λ | m/s, Hz, m |
| charge | Q = I t | C, A, s |
| potential difference | V = I R | V, A, Ω |
| electrical power | P = V I and P = I² R | W, V, A, Ω |
| energy transferred | E = P t and E = Q V | J, W, s, C, V |
| density | ρ = m ÷ V | kg/m³, kg, m³ |
Combined Science (AQA 8464) learners need the same list without the Physics-only rows.
The rest of this lesson and its 8 practice questions are locked.
In this lesson
- Learn by heart (AQA)
- Given on the sheet (AQA)
- Choosing and rearranging
- Try it: Rearranging, done for you
8 practice questions, marked as you go; about 25 minutes in all.
In this unit: Required practicals, maths skills and the equations
The skills every physics paper tests: units and standard form, uncertainty and errors, planning, graphs, the equations and the required practicals side by side.
- Units, prefixes and standard form
- Measurements, uncertainty and errors
- Variables, planning and risk
- Graphs: gradients, intercepts and areas
- The equations: learn, choose and rearrange
- The required practicals side by side
- Equation list B: recall and the formulae sheet
- Equation list C: word equations, recall and the equation sheet