Waves
What is Mechanical wave
Any speed that is faster than the speed of sound in the medium of interest
What is supersonic speed
What is intensity
Sound waves with low pitch have this type of frequency
What is a low frequency
A wave in which the medium vibrates perpendicular to the direction the wave travels
What is transverse wave
What is a sonic boom
Sound intensity is measured in units called
Decibels
sound waves with high pitch have this type of frequency
What is high frequency
A wave in which the medium vibrates parallel to the direction the wave travels
What is Longitudinal wave
When a jet is traveling at the speed of sound in air
What is Mach 1
An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave
What is pitch
Loud music that reaches intensities just above 120 dB can do this
Damage your ears
The matter through which a wave travels
What is the medium
This is the formula used to calculate speed by dividing distance traveled by the time it takes
What is speed equals distance divided by time
A change in sound frequency caused by the motion of the sound source, motion of the listener, or both
What is Doppler effect
By shortening a guitar string the guitarist changes what
Frequency and pitch of the wave
The lowest points on the wave
What are troughs
When an object changes its speed, increases, decreases, or changes direction, it is experiencing this
What is acceleration
higher than 20,000 Hz
By pressing different keys the flutist changes what
the frequency and pitch of the wave