Types of Waves
What kind of wave travels through a medium?
Mechanical wave
The crest of a wave is the
high point
When a wave bounces off of something, this is called _____________
Reflection
All sound waves begin with a ___________________
Vibration
If the wavelength of a wave is 7 meters and the frequency is 3 Hertz, what is the speed of the wave?
21 meters per second
What kind of wave travels through empty space?
Electromagnetic wave
What is the low point of a wave called?
trough
When a wave passes through a material, this is called _________________
Which states of matter do sound waves best travel through?
Solids and liquids
When the crest of one wave runs into the crest of another wave, what will the new wave look like?
It will have a higher amplitude
What kind of waves travels perpendicular (at a right angle)?
The amplitude of a wave is the same as its?
height
When a wave goes through a material and then bends or changes direction, what is that called?
Refraction
If you increase the frequency of a sound wave, the __________ will also increase.
Pitch
What is it called when the crest of one wave runs into the trough of another wave?
Destructive interference
What kind of waves travel in the same direction as their source of motion?
Longitudinal waves
The wavelength of a wave is the distance from one _________ to another
crest
What kind of wave interaction happens to waves in a movie theatre or an auditorium?
If a person has a louder voice, their sound waves will have a higher __________________
Amplitude
Do waves transfer energy or matter?
Energy
What kind of wave is the combination of transverse and longitudinal waves?
Surface waves
What is the frequency of a wave?
The number of times it repeats itself or goes up and down
Diffraction happens when a wave does what?
Spreads in all different directions
Loudness of a wave is measured in this unit _______________
Decibel
The speed of sound is most affected by the ____________ and ___________ of the material it is travelling through.
Temperature, Density or Stiffness