physics equasions for alevels

Speed

v = s/t. v = …….. (m/s), s = distance (m), t = time (s)

Acceleration

a = (v − u)/t. a = ………. (m/s²), v = final velocity (m/s), u = initial velocity (m/s), t = time (s)

Force

F = ma. F = ……. (N), m = mass (kg), a = acceleration (m/s²)

Weight

W = mg. W = ……… (N), m = mass (kg), g = gravitational field strength (N/kg)

Momentum

p = mv. p = ……… (kg m/s), m = mass (kg), v = velocity (m/s)

Work done

W = Fd. W =……………. (J), F = force (N), d = distance moved (m)

Kinetic energy

Ek = ½mv². Ek = …………. (J), m = mass (kg), v = velocity (m/s)

GPE

Ep = mgh. Ep = …………………(J), m = mass (kg), g = gravitational field strength (N/kg), h = height (m)

Power

P = E/t. P = ………..(W), E = energy transferred (J), t = time (s)

Density

ρ = m/V. ρ = ………..(kg/m³), m = mass (kg), V = volume (m³)

Pressure

p = F/A. p = ………….(Pa), F = force (N), A = area (m²)

Hooke's law

F = kx. F = force (N), k = spring constant (N/m), x = extension (m)

Elastic potential energy

Ee = ½kx². Ee = ………..,,,, (J), k = spring constant (N/m), x = extension (m)

Charge

Q = It. Q = …………..(C), I = current (A), t = time (s)

Current

I = Q/t. I =………… (A), Q = charge (C), t = time (s)

Potential difference

V = E/Q. V = ……………… (V), E = energy transferred (J), Q = charge (C)

Ohm's law

V = IR. V = potential difference (V), I = current (A), R = resistance (Ω)

Electrical power

P = IV. P = ………..(W), I = current (A), V = potential difference (V)

Electrical energy

E = Pt. E = ………. transferred (J), P = power (W), t = time (s)