Gravitational force and weight Student activity Play

How do temperature changes affect an equilibrium? Animation Play

How forces affect objects Student activity Play

How is light refracted in a glass of water? Animation Play

How light travels Student activity Play

How to cross the river Student activity Play

How to cross the river Whiteboard exercise Play

How to describe a force? Simulation Play

How to describe a force? Whiteboard exercise Play

How to describe a force? Animation Play

How to describe a force? Student activity Play

How to determine position at sea Animation Play

How to increase the moment of a force? Animation Play

How to resolve a force into components Animation Play

How to undo a wheel? Whiteboard exercise Play

How to undo a wheel? Student activity Play

How to undo a wheel? Simulation Play

Hubble's Law Student activity Play

Hubble's Law Glossary Play

Interference of waves Whiteboard exercise Play

Interference of waves Student activity Play

Introduction Student activity Play

Kinetic energy of molecules Animation Play

Le Chatelier's principle for gas reactions Student activity Play

Left hand rule Animation Play