Classroom visuals
Film info
Film summary
When light hits something, a number of things can happen: it can be reflected, refracted, diffracted or absorbed. But what does this mean?Key facts
- Manipulation of light is vital to our survival.
- Light waves change when they encounter an object.
- Light hitting an object leads to reflection, refraction, diffraction, interference and absorption of the waves.
- When light is absorbed it changes to heat or usable chemical energy.
Transcript
Light waves travel out from their source in straight lines, but they can be manipulated.
When light encounters an obstacle, various things can happen.
Reflection
Light can bounce off surfaces.
The angle to the normal at which it strikes the surface is called the angle of incidence.
Angle of Incidence
And the angle to the …
Please log in to view and download the complete transcript.
