Listening to Sounds Lab

Purpose: To determine a way to amplify sound traveling 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 in each hand. Bump the bowl of the spoon against a desk or other hard, solid object. Listen to the sound.
3. Now wrap the ends of the string around your finger.
4. Put your index fingers up against your 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 sound in the beginning takes awhile to get to your ear, but after you hold it up to your ear you can hear it much better. You can almost feel the sound.
2. How did the sound travel to your ears when you had the string touching your ears? - The sound traveled through the string and straight to your ear. Your ear didn't have to search for the sound
3. Why do you think it was easier to hear the sound when you put the strings by your ears? - As I said before your ear and he sound didn't have to search for each other there was like a road from the spoon to the ear.