Amplitude
What is amplitude?
The height of a wave
What is frequency?
How many waves per second/How close the waves are to one another
What are the three mediums that sound waves can pass through?
Solid, liquid, gas
What is attenuation
The loss of energy in a sound wave over distance
What kinds of surfaces do sound waves reflect off of best?
Smooth dense surfaces
Amplitude determines what about sound?
How loud a sound is
What does frequency relate to with sound waves?
Pitch of a sound
Why can sound not travel in space?
Space is a vacuum. There are no particles in space for sound to vibrate off of
Is the amplitude of sound waves larger or smaller at the source?
Larger
What is it called when sound can pass through a material?
Transmit
High amplitude means more what
Energy
What is frequency measured in
Hertz, HZ
Out of the three mediums that sound can pass through, which one does it pass through fastest?
Solids
All directions
What is it called when sound is taken in by a material?
Absorb/Absorption
If there are two waves, Wave A has high amplitude, and wave B has low amplitude, which wave has more energy?
Wave A
Decreasing frequency will result in a higher or lower pitch?
Lower pitch
Which medium has particles that are spread far apart from one another
Gas
Why do sound waves lose energy?
Energy spreads out, materials absorb energy, obstacles reflect and scatter energy
What is a material that can be used to absorb sound?
Foam
If you start yelling, what happens to the amplitude of the sound waves?
They increase
If you increase the frequency of a wave, what happens to the energy of the wave?
It increases
What medium does sound travel through the slowest?
Gas
How does air make sound waves lose energy?
The air particles collide with the sound waves which makes them lose energy
What is an echo?