Learn about Newton’s three laws, terminal velocity, contact and non-contact forces and free body diagrams with GCSE Bitesize Physics.

The diagram below shows some examples of vector quantities. The arrow shows the direction. The length of the arrow shows the magnitude, eg the size of the force in the first arrow.

Diagrams app is available on the Mac App Store for $19.99 as a special launch price for a limited time. After that, the app will cost $29.99, but it’s a one-time purchase without any subscriptions.