Under+Water+Hearing

toc

Broad Question:
Does sound change in different water temperatures.

Specific Question:
Does water temperature affect sound distortion.

Hypothesis:
The water temperature will not affect sound distortion.

Independent Variable:
Temperature of water.

Dependent Variable:
Sound distortion.

Variables That Need To Be Controlled:
Size of testing chamber.

General Plan
For my experiment I am going to have a tube filled with water with a speaker at one end and a microphone at the other end.I will send a certain sound from the speaker a pick up the sound on the other end and see if the sound has distorted through the tube. Then I would change the temperature and see if the sound distorted different from the room temperature water.

Potential Problems And Solutions
Keeping the water at a certain temperature: To run the water through a copper pipe that is sumerged in hot or cold water

Safety Or Environmental Concerns
Hot Water

Experimental Design
= Controlled, manipulated experiment =

What is your experimental unit?
One Tube of Water

Number Of Trials:
At least 10.

Number Of Subjects In Each trial:
1

Number of Observations:
5 per trial

Where will data be collected?:
Science Room

Resources and Budget Table

 * Item || Number needed || Where I will get this || Cost ||
 * Fish Tank || 1 || Mr. Littlefield || / ||
 * Temperature Probe || 1 || Mr. Littlefield || / ||
 * Plastic Cup || 1 || Mr. Littlefield || / ||
 * Wood Dowel || 1 || Mr. Littlefield || / ||
 * Rubber Band || 1 || Mr. Littlefield || / ||
 * Microphone || 1 || Mr. Littlefield || / ||

Detailed Procedure
1. Tape Plastic Cup to side of fish tank. >Put Dowel through back of cup then place the ruber band around the dowel. 2.Fill Fish Tank with Hot of Cold Water. 3.Test temperature. 4.Place Waterproof Microphone in water. 5. Pull back rubber band, then let go. >Do this while recording sound