Lesson 1
A DISTURBANCE THAT TRAVELS THROUGH A MEDIUM AS A LONGITUDINAL WAVE
SOUND
A DESCRIPTION OF HOW HIGH OR LOW THE SOUND SEEMS TO A PERSON
PITCH
WHAT DOES THE EAR DO TO VIBRATIONS WHILE IN THE COCHLEA?
THE VIBRATIONS FROM THE SOUND ARE CONVERTED TO ELECTRICITY AND THEN SENT THE AUDITORY NERVE.
HOW MUCH MATTER OR MASS THERE IS IN A GIVEN AMOUNT OF SPACE OR VOLUME
DENSITY
DESCRIBES YOUR AWARENESS OF THE ENERGY OF A SOUND
LOUDNESS
WHAT IS THE EAR COMPOSED OF?
PINA, EAR CANAL, EARDRUM, HAMMER, ANVIL, STIRRUP, COCHLEA, SEMI-CIRCULAR CANALS, AND the AUDITORY NERVE.
A SOLID, BECAUSE THE MOLECULES ARE CLOSER TOGETHER.
THE AMOUNT OF ENERGY A SOUND WAVE CARRIES PER SECOND THROUGH A UNIT AREA
INTESTITY
WHAT DOES THE OUTER EAR DO AND HAVE?
THE OUTER EAR ACTS LIKE A FUNNEL WITH THE PINA BEING A FUNNEL FOR SOUND, THE EAR CANAL DIRECTS THE SOUND TO THE EARDRUM, AND THE EARDRUM VIBRATES AND THOSE VIBRATIONS ARE SENT TO THE MIDDLE EAR.
WHAT IS SOUND MADE OF?
VIBRATIONS
A UNIT USED TO COMPARE THE LOUDNESS OF DIFFERENT SOUNDS
DECIBEL
WHAT DOES THE MIDDLE EAR DO AND HAVE?
THE MIDDLE EAR HAS PARTS THAT SENDS VIBRATIONS INTO OTHER PARTS. THE HAMMER IS ATTACHED TO THE EARDRUM AND THE EARDRUM SENDS VIBRATIONS TO THE HAMMER, THE HAMMER SENDS THE VIBRATIONS TO THE ANVIL, NEXT THE ANVIL TRANSFERS THE VIBRATIONS TO THE STIRRUP, LASTLY THE ANVIL SEND THE VIBRATIONS TO THE COCHLEA.
FACTORS THAT AFFECT SOUND
TEMPERATURE, STIFFNESS, AND DENSITY OF THE MEDIUM THE SOUND TRAVELS THROUGH
THE CHANGE IN FREQUENCY OF A WAVE AS ITS SOURCE MOVES IN RELATION TO THE OBSERVER
DOPPLER EFFECT
WHAT DOES THE INNER DO AND HAVE?
THE INNER EAR HAS THE EUSTACHIAN TUBE, COCHLEA, SEMI-CIRCULAR CANALS, AND THE AUDITORY NERVE. THE COCHLEA CONVERTS SOUND TO ELECTRICITY, SEMI-CIRCULAR CANALS KEEPS YOU BALANCED, THE AUDITORY NERVE SENDS THE ELECTRICITY FROM THE COCHLEA TO THE BRAIN, AND THE EUSTACHIAN TUBE EQUALS THE PRESSURE IN YOUR EAR TO THE OUTSIDE.