Characteristics of Waves
echo
A bound sound wave is called a(n)
Sound wave
A longitudinal wave that is caused by vibrations and is carried through a medium is a(n)
noise
A non musical sound that includes a random mix of pitches
sonic boom
An extremely fast airplane can cause an explosive sound called a(n)
standing wave
In a(n) ________, some portions of the wave are at rest while other portions have a large amplitude.
Medium
Most waves travel through some kind of material called a
Water wave
Waves are rhythmic disturbances. The easiest type of wave to visualize is a
reflection
When any kind of wave bounces off a barrier, the bouncing back of the wave is called
transverse waves
You can produce ______ waves in a rope by snapping it up and down.
Hertz
The frequency of the wave is expressed in units called
ear drum
The hammer, anvil, and stirrup bones are in the
Crests
The highest points of such waves are called _____
Constructive interference
The sound compressions overlap to produce a louder sound.
velocity
The speed at which the wave crests move is the _____.
Troughs
The west points of such waves are called _____
Compression Waves
Travel by Rarefaction and Compression. Travel with speed affected by the medium [Type (solid, liquid, and gas), temperature. Have wavelength, frequency (which causes us to hear pitch (Hz)), amplitude/intensity (which causes us to hear Loudness (dB))
Constructive or destructive interference
occurs when sound waves overlap and combine.
Destructive interference
The compressions and rarefactions combine to cancel the sound waves
Wavelength
The distance between the high point of one wave and the high point of the next wave is the ______
Amplitude
The distance from the crest of a wave to the rest position of the medium is the _______ of the wave.
Frequency/Pitch
The extent to which a note can be heard determines its ______, and the _______ is how low or high the note sounds.
medium
A physical environment in which phenomena occur is a(n)
Decibels
A unit to express loudness of a sound is
Wavelength
Compression Waves have
amplitude/intensity
Compression Waves have _______ which causes us to hear Loudness (dB)
Frequency
Compression Waves have ________which causes us to hear Pitch (Hz).
Loudness (dB)
Compression Waves have amplitude/intensity which causes us to hear
Pitch (Hz)
Compression Waves have frequency which causes us to hear
Rarefaction [and] Compression
Compression Waves travel by
Medium
Compression Waves travel with speed affected by the
Resonance
Due to _____, the vibration of a turning fork can cause a guitar string to vibrate when the fork is held near the string.
sound quality
Each instrument has a unique _______ that is the result of several pitches blending together through interference.
echolocation
Reflected sound waves are the basis for ______, a method whales and bats use to find food.
Doppler effect
The apparent change in the pitch of a car's horn as it moves past you is a result of the
Frequency
The number of wave crests that pass a place in one second is called the ______ of the wave
outer ear
The part of the ear that collects sound waves is the
Medium
This material can be a solid, liquid, or gas.
inner ear
Vibrations are changed into electrical signals in the
Type (solid, liquid, and gas) [and] temperature
different kinds of medium
Interference
is the ability of two or more waves to combine and form a new wave.
Reverberation
is the echo effect produced by multiple reflections of sound.
Resonance
is the tendency of an object to vibrate at the SAME frequency as another vibrating source. It is also the cause of sound production in musical instruments.
Earthquakes
transfer energy in powerful shock waves that travel through Earth.