AQA GCSE Physics key terms

An informal description of energy transferred into stores where it is not wanted and is less useful, rather than energy that has disappeared.

The unit of power; $1\ \text{W}=1\ \text{J/s}$.

A disturbance that transfers energy from one place to another without carrying the medium along with it.

A line joining points on a wave that are at the same stage of their oscillation.

The distance from one point on a wave to the corresponding point on the next wave, such as crest to crest.

The spread of emitted radiation intensity across different wavelengths.

The distance a wave travels per second through a medium, measured in metres per second (m/s).

The force on a mass due to gravity, measured in newtons.

The hot, dense core left after a red giant loses its outer layers.

The transfer of energy when a force causes an object or boundary to move through a distance.

Energy transferred when a force causes movement or when an electrical device transfers energy.