1. Chapter 1: Waves
Review PowerPoint

2. Amplitude is a measure of what in a wave?
Amplitude measures the amount of energy in a wave.

3. What determines the color of a light wave?
Frequency and wavelength

4. What is the space called between compressions in a wave?
Rarefaction

5. Describe reflection. Give an example of reflection.
Reflection is when a wave bounces off a surface.
Use any example from our labs in class.

6. Describe refraction. Give an example of refraction.
Refraction is when a wave bends when it pass through a different medium.
The wave travels at different speeds through the different mediums.
Use any example from our labs in class.

7. Describe diffraction. Give an example of diffraction.
Diffraction is when a wave bends around a barrier.
Use any example from our labs in class.

8. Describe and give an example of a mechanical wave.
A mechanical wave is one that needs a medium through which to travel.
Sound, earthquake

9. Describe and give an example of a transverse wave.
A transverse wave travels in up and down motions.
It can be mechanical or electromagnetic.
Light, water

10. Describe and give an example of an electromagnetic wave.
A electromagnetic wave does not require a medium to travel.
All electromagnetic waves are transverse.
Light, UV, x-ray

11. Describe and give an example of a compressional wave.
A wave that moves back and forth in the direction that it’s traveling.
Has compressions and rarefaction.
Sound

12. By what is the pitch of a sound measured?
Frequency

13. Describe why hearing an explosion in space during a movie is not realistic.
Since space has no air, sound cannot travel.

14. If space is a vacuum, how does light travel to Earth from the Sun?
Since light is a type of electromagnetic wave, it does not require a medium through which to travel.

15. How is the amplitude different in dim light and bright light?
The bright light has more energy which means it has a higher amplitude.
Dim light has less energy because it has a lower amplitude.

16. How is the wavelength different in a sound of 100 Hz compared to 500 Hz?
The wave of 100 Hz will have a lower pitch.
A lower pitch (100 Hz) will have the longer wavelength.