Physics Calculator Tools
Interactive calculators with step-by-step working for all Cambridge Physics topics.
Newton's Second Law
F = ma โ force, mass, acceleration
$$F = ma$$
Speed, Distance & Time
v = d/t โ the motion triangle
$$v = \frac{d}{t}$$
Ohm's Law
V = IR โ voltage, current, resistance
$$V = IR$$
Work Done & Energy
W = Fd โ work, force, distance
$$W = F \cdot d$$
Momentum
p = mv โ and conservation of momentum
$$p = mv$$
Specific Heat Capacity
Q = mcฮT โ thermal energy calculations
$$Q = mc\Delta T$$
Wave Equation
v = fฮป โ speed, frequency, wavelength
$$v = f\lambda$$
Electrical Power
P = IV, P = IยฒR, P = Vยฒ/R
$$P = IV = I^2R = \frac{V^2}{R}$$
Pressure
P = F/A โ pressure, force, area
$$P = \frac{F}{A}$$
Radioactive Decay
Half-life and remaining activity
$$N = N_0 \left(\frac{1}{2}\right)^{t/t_{1/2}}$$
Transformer Calculator
Turns ratio and voltage/current transformation
$$\frac{V_s}{V_p} = \frac{N_s}{N_p}$$
Kinetic & Potential Energy
KE = ยฝmvยฒ and GPE = mgh
$$KE = \tfrac{1}{2}mv^2 \quad GPE = mgh$$
Motion Graph Plotter
Plot s-t and v-t graphs for uniform acceleration using SUVAT
Efficiency Calculator
Useful output / total input
$$\text{efficiency} = \frac{E_{useful}}{E_{total}} \times 100\%$$
Density Calculator
ฯ = m/V โ density, mass, volume
$$\rho = \frac{m}{V}$$