Vocabulary
What are the other 2 names for sound waves?
Longitudinal and Mechanical
What is resonance?
When sound waves match the natural frequency of an object
What is the peak of a wave called?
Crest
What causes sound waves?
Vibrations
the number of complete wavelengths that pass a point in a given time
Frequency
When 2 waves combine and create a larger wave
Constructive Interference
What is the area of where waves are closest together
compression
Sound waves need a medium. What is a medium?
Solid liquid or gas
The distance between two corresponding parts of a wave
Wavelength
When 2 waves combine and the wave is destroyed
Destructive Interference
What is the part of the wave that is farthest apart?
Rarefraction
How does the medium (solid, liquid, gas) affect speed of sound?
Fastest: Solid Medium: Liquid Slow: Gas
An observed change in the frequency of a wave when the source or observer is moving
Doppler shift/effect
When waves bounce back
Reflection
Crest to Crest or Trough to Trough
Wavelength
Frequency is measured in?
Hertz
A disturbance that transfers energy from place to place
Wave
Occurs when an object causes a wave to change direction and bend around it?
Diffraction
is the height of the wave off the resting position called?
Amplitude
Can sound travel through space?
NO! there is no medium