1. Wave Energy

2. Waves have different energy Waves with lots of energy look and feel different than waves that have little energy. Ex) breeze making waves in a pool (little energy) Someone doing a cannonball and making waves in the pool (lots of energy) Slinky example!

3. Amplitude Related to the waves height The more energy = the higher the amplitude Think about fluffing a sheet Jump rope example

4. Wavelength The distance between 2 crests More energy = shorter wavelength (because the waves are coming along faster and closer together) Slinky/ jump rope example

5. Frequency The number of waves produced in a given time More energy = higher frequency (or more waves)

6. Recap MORE ENERGY = – Shorter wavelength – Higher amplitude – Higher frequency

7. Frequency and Wavelength Are OPPOSITES! High frequency = shorter wavelengths The more energy the waves have, the faster they come and the faster they come, they closer they are together so they have smaller wavelengths High frequency = low or short wavelength Low frequency = high or long wavelength

8. Mechanical wave Wave that travel through a medium Ex) ocean waves travel through water Earthquake waves travel through the ground Sound waves travel through the air

9. Electromagnetic Wave Do not need a medium Ex)light waves, microwaves, x-rays, tv and radio waves

10. Venn Diagram Compare and contrast electromagnetic and mechanical waves in a venn diagram