Lesson 1: Nature of sound
A DISTURBANCE THAT TRAVELS
THROUGH A MEDIUMAS A
SONGITUDINAL WAVE
What is Sound?
A DESCRIPTION OF HOW HIGH
OR LOW THE SOUND SEEMS TO
A PERSON
What is Pitch?
COLLECTS SOUND WAVES AND DIRECTS THEM INTO A NARROW REGION
What is a Ear Canal?
HOW MUCH MATTER OR MASS
THERE IS IN A GIVEN AMOUNT
OF SPACE OR VOLUME
What is Density?
DESCRIBES YOUR AWARENESS
OF THE ENERGY OF A SOUND
What is Loudness?
A SMALL, TIGHTLY STRETCHED, DRUMLIKE MEMBRANE
What is a Ear Drum?
THE AMOUNT OF ENERGY A
SOUND WAVE CARRIES PER
SECOND THROUGH A UNIT
AREA
What is Intensity?
A LIQUID-FILLED CAVITY SHAPED LIKE A SNAIL SHELL
What is a Cochlea?
A UNIT USED TO COMPARE THE
LOUDNESS OF DIFFERENT
SOUNDS
What is Decibel?
THE CHANGE IN FREQUENCYOF
A WAVE AS ITS SOURCEMOVES
IN RELATION TO THE OBSERVER
What is Doppler Effect?