Definiton
What is a wave?
A wave is a disturbance that transmit energy through matter or space.
A vibration is the complete ________motion of an object.
back and forth
What the threshhold of pain?
120
What is a medium?
A medium is a substance through which a wave can travel.
Longitudinal wave consist of compression and
rarefaction
How many decibels is a cat purring?
25
Define pitch.
Pitch is how low or high you perceive a sound to be.
Sound waves can travel through other materials such as
water, glass and metal
how many decibels is a chain saw?
100
Define Doppler effect.
Doppler effect is the apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound.
one of the most common types of hearing loss is called what
Tinnitius
how many decibels is a normal conversation?
60
What is a decibel?
Decibel is the most common unit used to express loudness.
the speed of sound through any medium is constant if the constant of the medium do not _____
change
how many decibel is a rocket engine?
200