CH 17 & 18 Study Guide

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Know your VC!!!

1. What is an electromagnetic wave?2. What is electromagnetic radiation?3. What is the speed of light?4. What are the two ways light can behave?5. Light acts like a _____ with a polarizing filter.6. Light acts like a _____ with the photoelectric

effect.7. What is a photon?

8. What is the Electromagnetic Spectrum?9. Name EM waves in order from lowest energy

to highest energy.10.What is the lowest energy wave on the EM

spectrum?11.What is the highest energy wave on the EM

spectrum?12.What part of the EM spectrum can we see?13.Radio/TV signals can be modulated or

changed. What is the difference between AM and FM signals?

14. When light strikes an object, what 3 ways can it behave?

15. What are the 3 types of materials? Describe each.

16. What determines the COLOR of an opaque object?

17.Explain why an apple looks red when exposed to white light.

18.What determines the COLOR of a transparent or translucent object?

19. Explain why a red apple looks black when seen through a blue filter.

20. What are the primary colors of LIGHT?21. What are the primary colors of PIGMENT?22. What are secondary colors?23. Light waves are represented as rays. What is

a ray?24.What are the 2 types of reflection? How are

they different?25.What is the difference between a virtual and

real image?

26.What is the difference between a plane, concave, and convex mirror?

27.Which mirror has a focal point?28.What does a lens do to light?29.What is the difference between a convex and

concave lens?30.Which one has a focal point?31.Know parts of the eye.32.What are 2 types of vision problems?33.What lenses are used to correct the 2 vision

problems?