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

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

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?

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

Noise Pollution https://www.youtube.com/watch?v=5jfmzufa8qo

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

Light: Crash Course Astronomy https://www.youtube.com/watch?v=jjy-eqWM38g

Light Electromagnetic radiation that you can see

Radiant Energy The energy carried by an electromagnetic wave

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

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

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

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

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

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

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