Musical HMusical H22OOBy Tyler M.By Tyler M.

My Plan:My Plan:

• How do you make How do you make sound vibrations?sound vibrations?

• Do you just make a Do you just make a lot of sound to lot of sound to make a vibration?make a vibration?

• To see how To see how different sounds different sounds are made by are made by blowing into blowing into bottles with bottles with different levels different levels of water in them.of water in them.

My My QuestionsQuestions::

Hypothesis:Hypothesis: Results/ Results/Conclusion:Conclusion:

• That by blowing That by blowing into the bottles into the bottles that we would be that we would be able to find out able to find out more about sound.more about sound.

• Blowing into plastic Blowing into plastic bottles to make bottles to make sound is hard. It sound is hard. It didn’t really work. didn’t really work.

Back to the drawing board…Back to the drawing board…

How do you make a How do you make a sound vibration?sound vibration?

(I decided I needed to know (I decided I needed to know what a vibration was)what a vibration was)

What I found out:What I found out:

• Vibration: Something Vibration: Something moving back and forthmoving back and forth

• If the vibration goes fast If the vibration goes fast enough, it will disturb the enough, it will disturb the airair

• Our ears pick up vibrations Our ears pick up vibrations in the airin the air

How can you tell if you areHow can you tell if you aremaking a sound vibration?making a sound vibration?

What I found out:What I found out:

• We can’t see the vibrations We can’t see the vibrations in the airin the air

• Water is thicker than air, Water is thicker than air, so you can see vibrations so you can see vibrations in the waterin the water

• Many things cause Many things cause vibrationsvibrations

What things make a vibration What things make a vibration that we can see in the water?that we can see in the water?

What worked:What worked:

• I learned from I learned from researching that a researching that a tuning fork vibrates tuning fork vibrates 426 times per 426 times per second and so if second and so if you hit it over the you hit it over the water, you can see water, you can see the water move a the water move a little from the little from the vibration.vibration.

What didn’t work:What didn’t work:

• Hitting or Hitting or strumming metal strumming metal (butter knives, (butter knives, tweezers, metals tweezers, metals strings (guitar), strings (guitar), and metal cans)and metal cans)

Making a louder sound…Making a louder sound…

What worked:What worked:

• Putting water on top Putting water on top of a speakerof a speaker

What doesn’t work What doesn’t work anymore:anymore:

• The speakerThe speaker

•My experiment with putting water on top of a speaker:My experiment with putting water on top of a speaker:

http://www.youtube.com/watch?http://www.youtube.com/watch?v=7diysykB0HQ&feature=sharev=7diysykB0HQ&feature=share

(Not an original photo-the speaker died too soon.)

Conclusion:Conclusion:

You can make a sound vibration You can make a sound vibration that you can see if you have that you can see if you have enough sound to make water enough sound to make water

vibrate. You can do this if you put vibrate. You can do this if you put water on a speaker or have water on a speaker or have

something that makes a lot of something that makes a lot of vibrations, like a tuning fork.vibrations, like a tuning fork.

SourcesSources

• http://www.videojug.com/expertanswer/fun-http://www.videojug.com/expertanswer/fun-science-demonstrations/how-do-vibrations-make-science-demonstrations/how-do-vibrations-make-soundsound

• http://www.techfresh.net/wp-content/uploads/http://www.techfresh.net/wp-content/uploads/2009/11/spica-speaker_02.jpg2009/11/spica-speaker_02.jpg

If you want to see more things that move If you want to see more things that move from the vibration of speakers, try this link:from the vibration of speakers, try this link:

• http://www.youtube.com/watch?http://www.youtube.com/watch?v=AS67HA4YMCs&feature=sharev=AS67HA4YMCs&feature=share