Across
- 1. Energy that enables us to see
- 3. What light does when it hits a mirror
- 4. An object that releases or emits light is said to be ....
- 5. A measure of how easily light passes through a material, this is called its ...... index
- 7. Lens that bulges outwards
- 8. Heat transfer can occur through a vacuum
- 11. Rays of light do cross when producing this type of image
- 12. An instrument used to measure temperature
- 13. radiation Light is a form of energy called ........
- 15. The part of the eye where the image forms
- 16. A transparent piece of plastic or glass that is shaped to curve the light outwards or inwards
Down
- 2. At greater angles of incidence than this, light is totally internally reflected
- 6. Lens that curves inwards
- 7. A substance that allows heat to flow easily
- 9. Rays of light do not cross when producing this type of image
- 10. Bending of light
- 14. Heat transfer through a liquid or gas