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Learn about the different types of forces and the difference between contact and non-contact forces

Pressure is a measure of how concentrated a force is. The amount of pressure exerted on an object depends on the force applied and the surface area it is spread over.

Learn about drawing and interpreting force diagrams. Find out how to calculate resultant forces acting on an object.

Find out more about the difference between motion and speed and how to use the speed equation.

Find out how to use distance-time graphs to describe a journey and to calculate speed.

Find out about the difference between weight and mass, how to explain why weight changes on different planets and how to apply the weight equation.

Learn how to identify different types of resistive forces and how to investigate the effect of friction.

Learn about the forces acting on an object in free fall and to describe how the motion of an object changes during free fall.

Learn about common energy stores and energy transfers and how to apply the work equation.

Learn about moments and pivots, apply the moment equation and identify common levers and applications of moments.

Learn about Hooke's Law and about the spring constant of a spring as being the amount of force needed to extend a spring. Explore how to find the spring constant of a spring.

Find out about gravitational forces which pull all objects together.

Learn how forces work.

Learn how to show the difference between force and pressure.

Learn how to find the weight of a floating object.

Find out how to show pressure exists in liquids with this step-by-step demonstration.