Speed of Sound
Question: How can you slow down the speed of sound?
Hypothesis: We think colder temperatures will slow down the speed of sound because colder temperatures make air molecules vibrate slower, and air delivers sound.
Procedure:1. Build a 10 foot long tube that is sealed on one end 2. Build a tube holder so you can control the temperature of the tube 3. Put dry ice around the outside of the tube 4. Wait until the inside of the tube is desired temperature 5. Measure temperature 6. Make a short noise into the tube once (ex. clapping, snapping, clicking) 7. Record noise and echo on microphone 8. Calculate the time between the sound and the echo 9. Repeat at different temperatures Special Needs: A quiet room |
Watch us in action:
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The Science behind it
The sound travels with a wave (a.k.a sound wave) through the length of the tube, and hits the covered side of the tube, then bounces off the covered side and is recorded by the microphone.
Later on you can Add Graphs with results
Later on you can Add Graphs with results
Conclusions
We accept our hypothesis because colder temperatures make the speed of sound slower, and hotter temperatures make the speed of sound quicker. We learned a lot about the speed of sound, for instance the speed of sounds travels at 1,125 feet per second in room temperature.
About Alicia
Alicia is 11 years old, she plays soccer and basketball. She lives in Somers with her sister, mom, dad and dog! Her favorite color is blue and green.
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About CarleighCarleigh is 10 years old. She loves to draw, play basketball, ice skate, practice karate, play softball and play with her little sister. She lives in Somers with her Mom, Dad, Brother, and Sister.
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