Big Bang Gizmos-Doppler Shift Already Passed

Pitch {Ans: the perceived frequency of a sound.}compressed {Ans: Just as a ship leaves a visible wake in the water behind it, a supersonic jet leaves behind an invisible "wake" of __________________ sound waves.}frequency {Ans: Radar guns transmit radio waves at a certain _________________. The ____________________ of the radio waves changes when they bounce off of a moving object. The reflected waves are detected and the speed of the object is calculated based on the ________________________ shift.}waves {Ans: Sound _________________ cause our eardrums to vibrate. The vibrations are transmitted to the auditory nerves via a series of delicate structures in the inner ear.}Sonic boom {Ans: a loud noise produced by a source moving faster than the speed of sound (343 m/s at sea level with a temperature of 20 °C or 68 °F). An observer will hear this after the jet flies by.}pressure {Ans: Sound energy causes air molecules to vibrate back and forth in the same direction that the sound is moving. This creates the alternating high- and low-___________________ areas.}