What is a disturbance that moves through matter or space carrying energy from one place to another.
100
frequency
What is the number of wavelengths that pass a point each second
100
They direct sound into your middle ear
What is the function of the ridges on your outer ear?
100
Compressional Waves
Sound waves are examples of...
200
Compressional wave
What is a wave that causes particles in matter to move back and forth along the same direction in which the wave travels
200
0.4 m
If the distance between the crest and trough of a wave is 0.8 m, what is the wave's amplitude?
200
Hertz
What is the units used for measuring frequency?
200
Frequency
An increase in a sounds' pitch corresponds to an increase in what other property?
200
Increase
As the energy of a wave increases, the amplitude (increases/decrease)
300
diffraction
What is the bending of waves around an object is due to
300
3.3 m/s
Waves on a string have a wavelength of 0.55 m. If the frequency of the waves is 6.0 Hz, what is the wave speed?
300
Steel (Solid) Why?
Through which of these materials does sound travel the fastest? A. Empty Space B. Water C. Steel D. Air
300
Increases
As the amplitude of a sound wave increases the intensity... (increases/decreases)
400
intensity
What is the amount of energy that a wave carries past a certain area each second is the
400
Energy
You are asleep with your head on the desk. You are awoken by vibrations from a cell phone vibrating on the other end of the desk. What is transferred from the cell phone to your head?
400
Amplitude
What is the wave property that determines the energy carried by a wave
400
They both vibrate
How is your ear drum like a real drum?
400
Increases
As pitch increases, the frequency of sound... (increase/decrease)
500
Refraction
What is the change in direction of a wave when it changes speeds traveling from one material to another
500
Ear drum, Anvil, Stirrup, Hammer
What is the name of the ear parts that amplify sound? (4 parts)
500
B,C,A
Place the following events in sequence: A) The cochlea interprets the sound waves and sends signals to the brain B) a sound is produced C) Your ear drum begins vibrating
500
Lower Pitch
A guitarist plays two different notes. One sound has a shorter wavelength than the other. How does the pitch of sound change?