Key terms & definitions

How strongly a metal opposes being oxidised; a metal with greater resistance is less easily oxidised.

Training in which muscles work against a resistance, such as free weights, weight machines or body weight.

Colouring fabric while protecting selected areas so that they remain undyed or retain an earlier colour.

A force that opposes motion, such as friction or air resistance.

A component that opposes the flow of electric current.

A component that limits current; a fixed resistor has a resistance that is not adjustable.

A component that opposes electric current. Its resistance is measured in ohms, $\Omega$.

A system of coloured bands that identifies a resistor’s nominal resistance and tolerance.

The ability to distinguish two points that are close together as separate points.

The smallest change that a measuring instrument can distinguish.

The smallest change in a quantity that a measuring instrument can show.

The smallest change in the quantity being measured that an instrument can display or distinguish.

The final part of a narrative, in which conflicts are settled or their lasting consequences become clear.

The point at which a story’s central difficulty reaches an outcome, often revealing what has changed for the character.

The number of pixels used to represent an image, commonly expressed as its width × height in pixels. Pixel density describes how closely pixels are packed when displayed or printed.

The stage at which a narrative’s disruption or problem is dealt with, establishing a restored or changed situation.

The outcome or aftermath of a narrative’s main conflict, which may settle some questions while leaving others open.

The process of replacing one vector with component vectors which together have the same effect as the original.

Replacing one force vector with two perpendicular component vectors that together have the same effect.

The process of replacing one force with two perpendicular component forces that have the same combined effect.

Representing a single force as two component forces acting at right angles to each other.

The ability to distinguish two points close together as separate points. Higher resolving power allows finer detail to be seen.

A stock or supply of something that people value or use, such as food, water or an energy source.

Materials obtained and used by people, such as food, water, fuels and raw materials.

Something a business needs to operate, such as workers, materials, premises or equipment.

Hardware, software or files that can be made available for computers to use, such as a shared printer.

The amount of a resource that people actually use.

The using up of a resource, especially when it is consumed faster than it can be replaced.

The use or extraction of resources from the environment to meet human needs.

Removing natural resources, such as timber or minerals, for use or sale.