What is?
A disturbance in matter that transfers energy through the matter
What are Mechanical Waves
This moves slower than light waves
What are Sound Waves
The type of matter through which sound waves travel the most
What is air
The rate at which a wave's energy flows through a given area is called _______
What is intensity
When wavelength is large, _________ is _________
What is frequency and small
A wave in which the medium vibrates perpendicular to the direction the wave travels
What are Transverse Waves
Is a type of Longitudinal Wave
What is Sound Wave
Gathers and channels sound energy to the middle ear
What is the outer ear
The rate at which a wave's energy flows through a given area is called ______
What is intensity
An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave
What is pitch
A wave in which the medium vibrates parallel to the direction the wave travels
What are Longitudinal Waves
Number unit to measure how fast the speed of jets move through the air
What is a Mach
Receives and amplifies the vibrations
What is the middle ear
Sound intensity is measured in units called _____
What is a decibel
Humans hear waves between ________ and ________
What are 20 Hz and 20,000 Hz
Of a wave, the maximum displacement of the medium from its rest position; the distance from the rest position to the crest
What is Amplitude
Affects sound speed
What is temperature
Nerve endings in the _________ sense vibrations and send signals to the brain
What are nerve endings
The decibel is named after _______
Who is Alexander Graham Bell
Wave frequencies higher than 20,000 Hz are called ____________
What are ultrasonic waves
Indicates how many wave crests hit you each second if you simply stand there and do not move; the number of complete cycles in a given time
What is Frequency
Any speed faster than the speed of sound in the medium of interest
What is Super Sonic
When an object travels faster than Mach 1, it will cause a ________
What is a sonic boom
The physical response to the intensity of a sound is _________
What is loudness
The doppler effect, a change in sound frequency caused by the motion or the sound source, motion of the listener, or both, is named after Austrian physicist ___________
Who is Christian Doppler