Key terms & definitions

At right angles: making an angle of $90^\circ$.

Perpendicular lines meet at a right angle. Where both gradients are defined and non-zero, their gradients multiply to $-1$.

A line that crosses a line segment at 90° through its midpoint; every point on it is equally far from the segment’s endpoints.

The shortest distance from a pivot to a force's line of action, measured at right angles to that line.

The shortest distance from a point to a line, measured along a line that meets it at 90°.

The shortest distance from the base of a solid to its opposite vertex or parallel face, measured at right angles to the base.

The distance measured at right angles from a chosen base to the opposite vertex or edge.

A straight line that meets another line at a right angle of 90°.

Lines that meet at a right angle. For two lines with defined gradients, their gradients multiply to $-1$.

The line segment obtained by projecting each endpoint of a segment perpendicularly onto a plane.

Christians who face discrimination, restrictions, imprisonment or violence because of their faith.

Unfair or hostile treatment of people because of their religion, identity or beliefs.

Cruel or harmful treatment directed at someone because of their identity, beliefs or membership of a group.

Hostility or mistreatment directed at people because of their religion or beliefs.

A major Persian royal centre whose palace Alexander burned in 330 BC.

Continuing with something despite difficulty or disappointment; in Antrobus's poem, it describes the son's enduring love as well as naming the pub.

Continuing to act faithfully despite difficulties, opposition or slow progress.

Continuing to use an old response or strategy even when feedback shows that it is no longer appropriate.

Continuing to work towards a goal despite difficulties or setbacks.

In teaching about the Trinity, a distinct divine identity: the Father, the Son or the Holy Spirit. Each is fully God, not a separate god or a part of God.

The voice speaking in a poem, which need not be the poet’s own voice.

The voice or character through whom an author presents a work; its statements should not automatically be treated as the author’s personal testimony.

The public image or personality that someone presents to an audience.

An individual’s description of their own experiences, recorded in forms such as a diary, letter, interview or memoir.

A network connecting devices close to an individual, such as a phone and headphones connected using Bluetooth.

A person’s freedom to make informed choices about their own life.

A recognisable public identity built around a person through recurring images, messages and values.

A factor concerning an individual, such as their needs, health, circumstances, priorities or willingness to accept inconvenience or risk.

A strongly held personal belief that can guide a person’s choices and behaviour.

Data that identifies, or can be used to identify, an individual, such as a name, address or identifiable location record.