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Opacity

Key Stage 2

Meaning

An opaque object is one that light cannot pass through.

Adjective: Opaque

About Opaque Objects

An opaque object doesn't let any light through. You cannot see through an opaque object.
Some objects are more opaque than others. If they let only some light through they are called translucent. If they let all the light through then they are called transparent.

Examples

Opaque Materials
Brick Metal Wood
BrickRed.png
MetalSword.png
Wood.png
Transparent Materials
Glass Water Air
GlassBroken.png
Water.png
Sky.png

References

AQA

Opaque objects, colour of, pages 208-9, GCSE Physics, Hodder, AQA
Opaque objects, page 207, GCSE Physics; Third Edition, Oxford University Press, AQA
Opaque objects, page 253, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
Opaque objects, page 85, GCSE Physics; The Revision Guide, CGP, AQA
Opaque, page 226, GCSE Physics; Student Book, Collins, AQA