1)  Sound is:  a) vibrations    b) waves  

c) all      d) none. 

2) Which is not part of the science of sound?

a) transmission   b) production    c)  elation

d)  reception      e) perception.

SOUND PRODUCTION

3)  Sound is created by:  a) eardrums    b) vibrating sources

c) the brain    d) none. 

What is the sound source for each?

4)  drum:____ a) reed

5)  guitar:_____ b) strings

6)  human voice:_____ c) skin or head

7)  saxophone:_____ d) vocal cords

8)  Pitch is how high or low a sound sounds. 

A)True      B)False

9)  Frequency is:  a) volume    b) loudness    c) color

d) waves per second      e) all.

10)  A high pitch vibrates slowly.    A)True      B)False

11)  For a lower pitch, the sound waves are more spread apart.    A)True      B)False

12)  A larger drum:  a) vibrates slower    b) produces a lower pitch     c) makes more spread apart waves

d) all    e) none.

SOUND TRANSMISSION

13)  What vibrates next after a drum head vibrates?

a) the air   b) the eardrum    c) the brain   d) the rice krispies

14)  The air made of :   a) atoms     b) molecules                c) 78% Nitrogen     d) 21% Oxygen     e) all.

15)  A sound medium:  a) carries vibrations   b) can be gas, liquid or solid         c) carries longitudinal waves      d) all   e)none.

16)  Which cannot carry sound?   A) air   B) water

c) the wall    d) outer space    e) a string

17)  For a higher pitch, the sound waves are:

a) closer together    b) vibrating faster    c) all   d) none

18)  For a louder sound:  a) pitch is higher     b) waves are closer     c) air is thicker and thinner    d) all    e) none

SOUND RECEPTION

19)  The outer ear funnels sound to your eardrum.  

a) True     b) False

20)  The middle ear has three bones which carry the vibration from the eardrum to the inner ear.  A) True 

b) False

21)  Which is not one of the three bones in the middle ear?

a) temple    b) anvil     c) stirrup    d) hammer 

22)  The vibrating stirrup passes the sound into the __________ of the inner ear.    A) liquid   b) cochlea

c) both    d) none

23)  The cochlea in the inner ear passes electric signals to the __________.   A) chicken   b) brain  c) heart  d) air

SOUND PERCEPTION

24)  Sound is perceived when its signal reaches your brain.

a) True   b) False

Questions (25-37) are worth 2 points each.

25)  What are two factors which influence sound perception?

26)  Why study sound?

27)  A larger object makes a higher or lower pitch sound?

Explain.

28)  How does a saxophone change pitches to play a song?

29)  What are three ways to change the pitch on a guitar?

30)  Is sound faster in air or water?  Why?

31)  How can a sine wave represent sound in the air?

32)  Is there sound on the moon? Explain.

33)  What do the light and dark stripes in the sound illustration represent?

34)  What is the function of the internal ear?

35)  What is the form and function of the cochlea?

36)  The ear sends ____________  ___________

to the brain. 

37)  What are your two  absolutely best questions about sound?