OCR GCSE Physics B key terms

A way to find the volume of a submerged object from the volume of water it moves aside.

The unit of power; one watt means one joule of energy transferred per second.

A regular disturbance that transfers energy from one place to another without an overall transfer of matter.

A line joining points at the same stage of a wave, such as a line along a water-wave crest.

The distance between corresponding points on consecutive waves, such as one crest and the next. Its SI unit is the metre (m).

The spread of emitted radiation across different wavelengths.

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

The force exerted on an object by gravity. Near Earth’s surface, weight is mass multiplied by gravitational field strength.

A mixture of the different colours of visible light, from violet at the shortest visible wavelengths to red at the longest.

The energy transferred when a force moves its point of application through a distance.