Prism (Physics)

Key Stage 3

Meaning

A glass prism with a ray of white light being split into the colours of the spectrum.

A prism is a transparent solid block with a triangular base.

About Prisms

Prisms show how white light is made of many different colours.

When white light enters a prism it is split into a spectrum of 7 colours:

• Red
• Orange
• Yellow
• Green
• Blue
• Indigo
• Violet

A diagram of a prism showing how white light is made of the 7 colours of the spectrum.