Vocabulary
The material through which a wave travels
Medium
What are mechanical waves?
The type of waves that needs a medium to transfer energy.
Name 4 types of electromagnetic waves?
Possible answers: Radio waves Infrared waves Visible light waves Ultra violet waves X-Rays Gamma Rays
What waves can travel through empty space?
Electromagnetic Waves
What is Hertz?
the unit of measurement for frequency
The highest point of the wave above the rest position
Crest
List two types of mechanical waves.
What has a higher frequency radio waves or gamma waves?
Gamma Waves
In what type of waves are the particles vibrated perpendicular to the flow of energy?
Transverse wave
If you were to draw a longitudinal wave, you should think of rarefractions like they are
the troughs on a transverse wave
The lowest point below the resting position.
Trough
What type of wave does sound travel as?
Longitudinal wave
What are the smallest radio waves?
Microwaves
Particles move parallel to the flow of energy?
Longitudinal wave
If you were to draw a longitudinal wave, you should think of compressions like they are
the crests on a transverse wave
The maximum displacement of the medium from its rest position to crest or trough
Amplitude
How are mechanical waves produced?
When a source of energy causes a medium to vibrate
Electromagnetic waves do or do not need a medium
Do not
What happens to wave length a wave frequency increases?
It gets shorter
What color of visible light have the longest wavelengths?
Red
The distance between a point on one wave and the same point on the next cycle of the wave
Wavelength
Generally speaking, mechanical waves move quickest through which medium?
Solid
At what speed do electromagnetic waves travel?
Speed of Light
The full range of electromagnetic radiation, organized by frequency or wavelength.
Electromagnetic spectrum
What color of visible light have the shortest wavelengths?
Purple