Purpose: to determine a way to amplify sound travelling to your ear
Procedure:
1. Tie 2 strings to the handle of a metal spoon. Each string should be about 40 cm long.
2.Hold one end of each string each hand.Bump the bowl of the spoon against a desk or hard, solid object. Listen to sound.
3.Now wrap the ends of the string around your fingers.
4.Put your index fingers up against ears and bump the spoon against the object again.
Conclusion:
1. How does the first sound compare with the sound you heard with your fingers up against your ears?
The vibration was stronger. It made it deeper.
2.How did the sound travel to your ears when you had the string touching your ears?
Because the sound was travelling through the string and than came to my ear.
3.Why do you think it was easier to hear the sound when you put the strings by your ear?
We tightened the string and that made us hear it easier.
Procedure:
1. Tie 2 strings to the handle of a metal spoon. Each string should be about 40 cm long.
2.Hold one end of each string each hand.Bump the bowl of the spoon against a desk or hard, solid object. Listen to sound.
3.Now wrap the ends of the string around your fingers.
4.Put your index fingers up against ears and bump the spoon against the object again.
Conclusion:
1. How does the first sound compare with the sound you heard with your fingers up against your ears?
The vibration was stronger. It made it deeper.
2.How did the sound travel to your ears when you had the string touching your ears?
Because the sound was travelling through the string and than came to my ear.
3.Why do you think it was easier to hear the sound when you put the strings by your ear?
We tightened the string and that made us hear it easier.
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