Sound Energy - Data Sheet Part 2

Sources of Sound

Sound Carrier

Description of Sound

Watch

Air

 

 

Watch

Wood

 

 

Watch

Metal

 

 

Vibrating Spoon

Air

 

 

Vibrating Spoon After 5 sec.

String

 

 

Vibrating Spoon (quiet)

String

 

 

1. Could you hear the watch ticking when you held it at arm's length?

 

2. Could you hear the watch ticking when you held it against the wooden dowel?

 

3. Could you hear the watch ticking when you held it against the metal rod?

 

4. Based on what you heard, which is the best carrier of sound- air, metal, or wood? Which is the second best.

1st _________________________ 2nd ________________________

 

5. How did the sound of the spoon change when the string was held against your ears?

 

6. When the ringing of the spoon was too quiet to be heard through the air, could it be heard through the string?

 

7. Is the string a better carrier of sound than air is?