Wave properties

The frequency of something is how often an event happens in a given amount of time. In physics, the frequency is defined as number of cycles oscillations per second

Waves transfer energy from one place to another.

Wave types

Mechanical waves - sound, water seismic, waves on springs ropes

Electromagnetic waves - Radio, microwave, IR, light, UV, x-ray, Gamma Ray

These are oscillations in magnetic and electric fields.

They do not need a substance. They can travel through a vacuum, like space.

Responsible for heating by radiation.

Wavelength is the distance from a point on one wave to the same point on the next wave. It is measured metres and has the symbol (greek) letter lambda)

Amplitude - the height of the wave from the rest position to the peak or trough. Measured in metres. The more energy a wave has the bigger the amplitude Frequency

Frequency is the number of waves passing a point every second and is measured in hertz (Hz)

Electromagnetic waves, can all travel through a vacuum at the same speed of 300000 kilometres per second. No medium is needed.