1. BR314

2. Bell Ringer( )
Question: If outer space has empty space then how can we see the light waves here on earth from the sun?

3. Answer: Light waves are electromagnetic
Answer: Light waves are electromagnetic. Electromagnetic waves do not require a medium to travel from its source to us.

4. Exit Slip ( )
Question: Can light change direction? Explain; use an example.

5. Bell Ringer( )
Jack throws a rock into the center of a pond. This causes a large ripple to go hit the bank.
Question: Did the ripple carry the water molecules from the center to the ponds edge?

6. Answer: No, waves don’t carry particles they carry energy.

7. Exit Slip ( )
Jonny jumped off the diving board and made a big splash. The wave carried all the way to the pools edge.
Question: Did the water molecules move from the center to the pools edge?

8. Bell Ringer( )
Question: What is our new learning target?

9. Answer: I can categorize a wave as mechanical or electromagnetic.

10. Exit Slip ( )
Directions: Diagram the following. Light from a flashlight bouncing off of a mirror.

11. Bell Ringer( )
Question: If you were to increase the amplitude for a light wave, how would we perceive the change? (Hint: sound would be volume)

12. Answer: We would see an increase in intensity

13. Exit Slip ( )
Question: How do we perceive a change in frequency of a light wave?
(Hint: Sound would be pitch)

14. Bell Ringer( )
Question: If you were to increase the amplitude for a sound wave, how would we perceive the change? (Hint: light is brightness)

15. Answer: We would see an increase in volume

16. Exit Slip ( )
Question: How do we perceive a change in frequency of a sound wave?
(Hint: Light would be color)