Another Possible Experiment

Today, we looked into more experiments that we could possibly do for our project. This is the most recent development.

Possible Experiment:

Question: Will a higher frequency of sound have a greater force?

Hypothesis: Yes, because the greater repetition in a higher frequency will have a greater effect on the velocity, which will in turn increase the acceleration, therefore increasing the amount of force.

Materials Needed:

• a wooden dowel
• two 1.5 liter bottles ✓
• two rubber bands ✓
• a needle ✓
• a table clamp
• recording device (and/or a tone generator) ✓
• speaker ✓
• timer ✓

Procedure:

1. Blow into the bottle and record the sound that comes out.
2. Using the rubber band, attach one bottle to each end of the dowel.
3. Put the needle in the clamp and clamp it to the edge of a table.
4. Balance the dowel on the needle.
5. Place a speaker beneath one of the bottles.
6. Play the recorded sound.
7. Record results (time, rpm, acceleration, etc.).

Possible Variations:

Will the physical properties (surface area and mass) of the object being moved affect its velocity?
Will volume affect velocity? Higher = faster, lower = slower? (or the larger the sound, harder the vibrations can enter and move the bottles)

Will temperature affect rpm? Hot = slower, colder = faster b/c sound waves moves faster in colder temperatures.

We hope this draft is usable for our final project. Wish us luck!

-The PhysicsTreeStinger Crew

(Annelise, Melanie, Colin, and Dominic)