An experiment to demonstrate the wave nature of light via superposition and interference.

Stress per unit Strain, units: Pascals or N/m2

A form of electromagnetic wave (wavelengths:10-12-10-7m). It is used in X-ray photography.

The gravitational force acting on a body, measured in newtons (N).

Series of vibrations that transfer energy from one place to another.

The theory which states that all objects can exhibit both wave and particle properties.

The unit of potential difference (p.d.) or electromotive force (e.m.f.)

A device used to measure the potential difference across a component. It is connected in parallel across a component.

The (instantaneous) rate of change of displacement with respect to time. Velocity is a vector.

A motion graph which shows velocity against time for a given body.