1. Optics Unit Review Questions

2. Teach With Fergy
Please find below the first 6 questions in the Optics Review Power Point.

3. Light travels at __________ m/s & __________ km/h

4. Light travels at 3.8x108 m/s & 300,000 km/h

5. Materials can be translucent, transparent or opaque, define each.

6. Materials can be translucent, transparent or opaque, define each.
Transparent - Lets light pass through easily when light strikes it Translucent - Allows some light to pass through Opaque - Does not allow any light to pass through

7. What is incandescent light production?

8. What is incandescent light production?
This process of producing light as a result of high temperatures.

9. What is refraction?

10. What is refraction?
The bending or change in direction of light when it travels from one medium into another.

11. Sketch a ray diagram for a converging lens with the object outside 2F’ and use salt to describe it.

12. Sketch a ray diagram for a converging lens with the object outside 2F’ and use salt to describe it.

13. What is Presbyopia and what causes it?

14. What is Presbyopia and what causes it?
A form of farsightedness whereby light rays come together past the retina (people find it hard to read small print)
Usually comes with age as eye loses its ability to accommodate

15. 35 Questions have been removed