The Electromagnetic Spectrum
Light Sound and Waves

Seeing and lighting

Physics Narrative for 11-14 Supporting Physics Teaching

Starting out in thinking about seeing and light

Light travels from source to detector. Sources are luminous objects. Our eye is a detector that can see things only when light travels from the source to the detector. We can also see non-luminous objects when light reflects from their surfaces and arrives at the eye.

Not all the light emitted from the source reaches the detector:

  • some will head off in other directions
  • some will be absorbed
  • some will be scattered

But all of the light continues to travel until it is absorbed, somewhere.

IOP DOMAINS Physics CPD programme

Waves CPD videos

Our new set of videos gives teachers and coaches of physics a preview of the training we offer ahead of this term's live support sessions.

Find out more