Newton’s Laws will help your students understand force, motion, and the transfer of energy. In this classroom presentation, engaging hands-on activities help demonstrate these important concepts your ...

Forces - OCR 21st Century How can we describe motion? - OCR 21st Century Motion and energy transfer Sample exam questions - motion - OCR 21st Century ...

Friction is a force that opposes motion. It is present whenever two surfaces rub over each other, such as when you rub your hands together, or when you apply the brakes on a bike or in a car.