Sound

Question 1

compressional waves formed from vibrating objects colliding with air molecules

Answer 1

sound waves

Question 2

depends on temperature and state of medium

Answer 2

speed of sound

Question 3

sound travels ________ in solids and liquids. molecules are closer together than _______ molecules.

Answer 3

faster

gas

Question 4

ears gather compressional waves which vibrate a tough membrane called ______.

Answer 4

eardrum

Question 5

what three bones do the middle ear include?

Answer 5

hammer
anvil
stirrup

Question 6

what do the three bones in the middle ear do?

Answer 6

amplify sound

Question 7

what does the inner ear contain?

Answer 7

cochlea

Question 8

what does the cochlea do?

Answer 8

sends auditory nerve impulses to the brain

Question 9

the brain decoded and interprets ________.

Answer 9

nerve impulses

Question 10

amount of energy that flows through a certain area in a given amount of time

Answer 10

intensity

Question 11

human perception of sound intensity which is measured in decibels

Answer 11

loudness

Question 12

how high or low a sound seems to bewitch is related to frequency of sound wave

Answer 12

pitch