1. How do the particles move in relation to the direction of the wave travel? Explain.

2. Give three examples of mechanical wave.

3. In terms of density, what kind of medium is the best/easiest for mechanical waves to travel through?

4. How does the elasticity of a medium affect the speed of a wave? Explain.

5. Give three examples of electromagnetic wave.

6. How does density of a medium affect the speed of an electromagnetic wave? Explain.

7. What do we know about the speeds at which a wave travels while it is in one kind of medium?

8. If a waves speed is constant wouldnt the wavelength and frequency also have to be constant? Explain.