Models
Interactive 3D models. Open one full screen, or find it on its topic page. 13 of the 41 planned models are ready.
Unit 1 Motion, forces and energy
1.2 Motion
Motion and its graphs
Go to topic 1.21.5 Forces
Moments, balance and stability
Go to topic 1.51.6 Momentum
Momentum and collisions
Go to topic 1.6
Unit 2 Thermal physics
2.1 Kinetic particle model of matter
Particles in solids, liquids and gases
Go to topic 2.12.2 Thermal properties and temperature
Heating curve: melting and boiling
Go to topic 2.2
Unit 3 Waves
3.1 General properties of waves
Transverse and longitudinal waves
Go to topic 3.13.1 General properties of waves
Ripple tank: reflection, refraction and diffraction
Go to topic 3.13.2 Light
Reflection, refraction and total internal reflection
Go to topic 3.23.2 Light
Thin lenses and ray diagrams
Go to topic 3.2
Unit 4 Electricity and magnetism
4.2 Electrical quantities
Current, voltage and resistance
Go to topic 4.2
Unit 5 Nuclear physics
5.1 The nuclear model of the atom
Nuclear fission and fusion
Go to topic 5.1
Unit 6 Space physics
6.1 The Earth and the Solar System
How the Solar System formed
Go to topic 6.16.2 Stars and the Universe
The life cycle of a star
Go to topic 6.2