AQA GCSE Physics (Trilogy) ALL Equations

Weight

• P = W ÷ t [Work done ÷ time]
• W = m g [mass x gravitational field strength]
• W = F s [force x distance along the line of action of the force]
• ρ = m ÷ V [mass ÷ volume]

Work done by a force

• W = F s [force x distance along the line of action of the force]
• F = m a [mass x acceleration]
• W = m g [mass x gravitational field strength]
• E = P t [power x time]

Force applied to a spring

• W = F s [force x distance along the line of action of the force]
• F = k e [spring constant x extension]
• F = m a [mass x acceleration]
• E = Q V [Charge flow x potential difference]

Distance travelled

• F = m a [mass x acceleration]
• a = Δv ÷ t [change in velocity ÷ time taken]
• Ek = ½ m v² [0.5 x mass x (speed)²]
• s = v t [speed x time]

Acceleration

• F = m a [mass x acceleration]
• W = m g [mass x gravitational field strength]
• a = Δv ÷ t [change in velocity ÷ time taken]
• Ek = ½ m v² [0.5 x mass x (speed)²]

Resultant force on an accelerating mass

• ρ = m ÷ V [mass ÷ volume]
• p = m v [mass x velocity]
• F = m a [mass x acceleration]
• W = F s [force x distance along the line of action of the force]

Momentum (Higher Tier only)

• P = E ÷ t (energy transferred ÷ time)
• p = m v [mass x velocity]
• ρ = m ÷ V [mass ÷ volume]
• Ep = m g h [mass x gravitational field strength x height]

Kinetic energy

• E_k = ½ m v² [0.5 x mass x (speed)²]

• E_p = m g h [mass x gravitational field strength x height]

• P = E ÷ t (energy transferred ÷ time)

• E = Q V [Charge flow x potential difference]

Gravitational potential energy

• E_p = m g h [mass x gravitational field strength x height]

• Efficiency = Useful output power ÷ total input energy power(x100)

• P = W ÷ t [Work done ÷ time]

• Efficiency = Useful output energy transfer ÷ total input energy transfer (x100)

Power (energy)

• V = I R [current x resistance]
• ρ = m ÷ V [mass ÷ volume]
• Q = I t [current x time]
• P = E ÷ t (energy transferred ÷ time)