OCR GCSE Combined Science B key terms

A line joining points at the same stage of a wave, such as a line of crests across the surface of water.

The distance between corresponding points on adjacent waves, such as two neighbouring crests, measured in metres (m).

The distance travelled by a wave each second, measured in metres per second (m/s). Wave speed is calculated using $v=f\lambda$.

An acid that is only partially ionised in aqueous solution.

The gravitational force acting on an object, measured in newtons (N).

A thin specimen placed in liquid on a microscope slide and covered with a coverslip.

A neck injury caused by sudden movement of the head relative to the body.

A transfer of energy when a force causes an object to move, including transfers that increase a material's internal energy.

Energy transferred when a force moves an object through a distance in the direction of the force, measured in joules (J).

Plant transport tissue containing vessels that carry water and dissolved mineral ions from the roots towards the stems and leaves.

The amount of product obtained from a chemical reaction.

The value of the vertical-axis quantity where a graph crosses the vertical axis, at $x=0$.

An instrument reading other than zero when the quantity being measured is zero, causing an offset in subsequent readings.

A clear region around an antimicrobial disc on a culture plate where visible microbial growth has been prevented.

The fertilised egg cell formed when two gametes fuse.