Across
- 3. Panels a panel designed to absorb the sun's rays as a source of energy for generating electricity or heating
- 5. of Light the speed at which light and all forms of electromagnetic radiation travel
- 7. light changes direction between one medium and another.
- 8. light passes through a transparent or translucent object.
- 10. It is the basic unit that makes up all light.
Down
- 1. light is absorbed and converted into energy.
- 2. a surface throws back light without absorbing it.
- 4. light is seperated into equal amounts of the visible spectrum (rainbow).
- 6. light spreads out after it passes through another medium.
- 9. when light cannot pass through an object.