Sound Science test Name: Section a multiple choice: select the best answer

1. 
   When an object moves back and forth quickly this force is called a (n):
   

1. 
   echo b) vibration c) sound waves d) natural sound e) artificial sound
   

2. 
   Energy that vibrates particles causing sounds (and spreads out ) is called:
   

1. 
   echo b) vibration c) sound waves d) natural sound e) artificial sound
   

3. 
   This is one way to group sound by what would be heard in nature:
   

1. 
   echo b) vibration c) sound waves d) natural sound e) artificial sound
   

4. 
   A sound that bounces off an object and reflects back to the ear is called a(n):
   

1. 
   echo b) vibration c) sound waves d) natural sound e) artificial sound
   

5. 
   This is another way to group sound by what would be heard by man-made devices:
   

1. 
   echo b) vibration c) sound waves d) natural sound e) artificial sound
   

6. 
   These type of instruments produce sounds with one or more vibrating strings (cello, violin, and guitar are examples):
   

1. 
   percussion b) string c) wind d) vocal e) kazoo
   

7. 
   This type of instrument is used by the human voice box to produce music:
   

1. 
   percussion b) string c) wind d) vocal e) kazoo
   

8. 
   These type of instruments produce sound when a material is stretched over a hollow container which vibrates when struck with a stick or mallet:
   

1. 
   percussion b) string c) wind d) vocal e) kazoo
   

9. 
   These type of instruments produce sound when a column of air causes vibration when a musician blows across or into an instrument:
   

1. 
   percussion b) string c) wind d) vocal e) kazoo
   

10. 
    This part of the ear is shell shaped, is filled with liquid and lined with tiny hairs that transmit sound:
    

1. 
   eardrum b) hammer c) anvil d) cochlea e) auditory nerve
   

11. 
    This is a thin delicate membrane in the ear that vibrates when sound waves hit it:
    

1. 
   ear drum b) hammer c) anvil d) cochlea e) auditory nerve
   

12. 
    This nerve is attached to the ear, it sends messages to the brain and interprets the sound:
    

13. 
    This is the part of the lab where a reason for testing is explained:
    

1. 
   purpose b) hypothesis c) materials d) procedure e) conclusion
   

14. 
    This part of the lab summarizes observations, findings, and ends the lab by stating whether the hypothesis was correct or not:
    

1. 
   purpose b) hypothesis c) materials d) procedure e) conclusion
   

15. 
    This part of the lab is the prediction of results before performing the experiment:
    

1. 
   purpose b) hypothesis c) materials d) procedure e) conclusion
   

1. 
   Explain the difference between natural and artificial sound. Give 2 examples of each. (4 )
   

2. 
   Briefly explain how the ear works and how it allows us to hear the sounds around us. (3)
   

3. 
   Explain briefly how vibration is important in creating sound for the 3 types of musical instrument families. (3)
   

4. 
   Discuss one of the sound labs we did in class. Explain briefly the purpose, what observations were made and the end result. (3)
   

5. 
   Give 5 different examples of sounds you would or do hear at school. Be specific. (5)
   

-outer ear - ear drum - cochlea - auditory nerve - hammer - anvil - stirrup