Acceleration – the rate an object changes its speed at. It is calculated using the following formula: acceleration = change in speed ÷ time taken.

Astronomy – the study of stars, moons, planets and other ‘celestial’ objects.

Calculus – a strand of mathematics that calculates rates of change and helps find lengths, volumes and areas.

Force – a push or pull on an object.

Gravity – a force that makes things to move towards each other.

Mathematics – the study of numbers, shapes and quantities.

Motion – when something moves.

Physics – the study of matter and energy and how they interact.

Telescope – a piece of equipment that magnifies what you see through it, making things appear bigger and closer. Telescopes are often used to look at stars, moons and planets.