Key terms & definitions

A notation written after a chemical formula to show the physical state of that substance in a chemical equation.

A label written in brackets after a chemical formula to show whether the substance is solid, liquid, gas or dissolved in water.

Government provision intended to support people’s wellbeing, including benefits paid to people who need financial assistance.

A camera that remains in a fixed position rather than moving through the scene.

A character whose underlying attitudes remain largely unchanged despite the events they experience.

An imbalance of positive and negative charge that remains on an object rather than flowing away continuously.

The accumulation of an overall positive or negative charge on an object.

A data structure whose size is fixed once it has been created, although its stored values may change.

A sudden movement of accumulated electric charge that reduces a build-up of static charge and may produce a spark.

An accumulation of electric charge that remains on an object rather than flowing away.

A build-up of electric charge on an object.

The ability to hold a body part in a static position, with muscle length staying the same.

Stretching in which a position is held without movement for a short time.

A type of drug used to lower blood cholesterol, slowing the build-up of fatty material in arteries.

A drug that lowers blood cholesterol levels, slowing the build-up of fatty deposits in arteries.

Not moving; on a distance–time graph this is represented by a horizontal line with zero gradient.

Not moving; the distance travelled remains unchanged as time passes.

The material that remains in place while chromatography is carried out; in paper chromatography, this is the paper.

The phase that stays in place during chromatography; in GCSE paper chromatography, this is the chromatography paper.

A point on a curve where the gradient is zero, so $\frac{dy}{dx}=0$ and the tangent is horizontal.

A wave pattern with fixed positions of no vibration and maximum vibration, formed by waves of the same frequency travelling in opposite directions.

A wave pattern with fixed nodes and vibrating sections between them, formed when waves travelling in opposite directions overlap.

A series of fourteen images used to guide prayer and reflection on Jesus’ journey to his crucifixion and burial.

A numerical value calculated from data, such as a proportion, mean, median or range.

A structured process for a statistical investigation: initial planning, data collection, data processing and presentation, interpretation of results, and evaluation and review.

A mathematical representation used to describe a pattern in data and estimate probabilities; a normal model represents data using a normal distribution.

A sculpture representing a person or figure.

A person’s position in society, including their rights, opportunities, influence and the respect they receive.

The level of prestige or esteem attached to a person or social group.

A person’s position or rank relative to others, which carries a level of value, respect or authority.