 # Chapter 1: Waves Review PowerPoint.

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Chapter 1: Waves Review PowerPoint

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

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

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

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

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.

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

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

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

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

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

By what is the pitch of a sound measured?
Frequency

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

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.

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.

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.