AOS1: Heat, Light and Waves

Front

Mechanical wave

Back

A wave that propagates as an oscillation of matter and transfers energy through a medium.

Front

Electromagnetic wave

Back

A wave with two transverse components; a varying magnetic field and a varying electric field. Doesn't require a medium to travel

Front

Medium

Back

A physical substance, such as air or water, through which a mechanical wave is propagated.

Front

Transmit

Back

To cause light, heat, sound etc. to pass through a medium.

Front

Oscillate

Back

To move about an average position in a regular, repetitive or periodic pattern.

Front

Transverse Waves

Back

A wave in which vibrations are perpendicular to the direction of travel

Front

Crest

Back

The highest part of a transverse wave.

Front

Trough

Back

The lowest part of a transverse wave.

Front

Longitudinal Waves

Back

A wave in which vibrations are parallel to the direction of travel

Front

Compression

Back

In longitudinal waves, a region where particles are most closely spaced