1. Light Mr. Skirbst Physical Science Topic 23

2. Light Ray Model - light travels in straight lines called “rays”

3. Light Reflection - light “bouncing” off a surface

4. 2 Kinds of Reflection Regular - reflection off a smooth surface (i.e. mirror)

5. 2 Kinds of Reflection Diffuse - reflection off an irregular surface (i.e. foil)

6. Reflection Mirror - smooth surface that reflects light

7. 3 Types of Mirrors 1. Plane - smooth, flat surface

8. 3 Types of Mirrors 2. Concave - smooth, curved inward

9. 3 Types of Mirrors 3. Convex - smooth, curved outward

10. Refraction - bending of light due to change in speed - when passing between different types of material

11. Refraction Prism - a device used to refract light into the colors of the rainbow (ROYGBV)

12. Lenses Lens - transparent material that refracts light

13. 2 Types of Lenses 1. Convex - thicker in the middle - refracts to a point

14. 2 Types of Lenses 2. Concave - thinner in the middle - refracts outward

15. Telescopes Telescope - an instrument used to view objects far away

16. 2 Types of Telescopes Refracting - uses lenses to collect light

17. 2 Types of Telescopes Reflecting - uses mirrors to collect light