1. How does energy affect a wave?
RRR Task #1
How does energy affect a wave?

2. How do waves interact with matter?
Update RRR Task #2
How do waves interact with matter?

3. Group Discussion
Imagine you are standing on a busy street corner in the city. What sounds do you hear? What sights do you see? Do these things have any similarities?

4. Noise Pollution
We talked about sound intensity last week. Does anyone remember anything we talked about?

5. Noise Pollution

6. The Electromagnetic Spectrum
Take Notes on Page 127
Use graphic organizer when necessary

7. Light: Crash Course Astronomy

8. Light
Electromagnetic radiation that you can see

9. Radiant Energy
The energy carried by an electromagnetic wave

10. Radio Waves Low frequency and energy
Wavelength between 30cm to a kilometer or more
Used for communication

11. Microwaves Low frequency and energy Wavelength between 1 mm and 30 cm
Used for cooking

12. Infrared Waves Shorter than a microwave but longer than visible light
Example: TV remote control

13. Visible Light
The range of wavelengths between infrared and ultraviolet
Allows humans to perceive color

14. Ultraviolet Waves
Shorter wavelength, higher frequency and energy than visible light
Can cause chemical reaction

15. X-Rays High frequency and energy, short wavelength
Used for medical imaging

16. Gamma Rays Highest frequency and energy, shortest wavelength
Can kill living cells