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 energy transferred when an object is moved through a distance by a force. Can be calculated by multiplying the force involved by the distance moved in the direction of the force.

The minimum energy that is required for a material to release an electron, measured in joules(J).

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

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

The smallest distance between one point of a wave and the identical point of the next wave, measured in metres (m).

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

The unit of power.