Research: There are two types of sound waves; Transverse and Longitudinal. Transverse waves go up and down, like a bunch of people standing in a line and bobbing down and coming back up one by one. Longitudinal waves travel out and away from their source in a straight line at the speed of sound, which can vary depending on where you are and what temperature it is.
Experiment:
Equipment: 3 wine glasses, 1 1/2 cups of water, plastic spoon
Method: Fill the first glass with 3/4 cups of water, the second with 1/2 cup and the last one has the rest. Use a plastic spoon and GENTLY hit the glasses in this order:
3-2-1-2-3-3-3
2-2-2
3-3-3
3-2-1-2-3-3-3
3-2-2-3-2-1
You've just played Mary Had a Little Lamb on wine glasses!
The explanation for this:
Each glass makes a sound when you tap its side with a spoon because the spoon causes a vibrating sound wave. The sound wave travels through the water in the glass and eventually reaches your ear. Each glass makes a different sound because the sound waves travel through the water at different speeds, causing vibrations at different frequencies. (Frequency refers to the number of times a sound wave vibrates per second). The glasses with more water make lower sounds due to the amount of water causing the vibrations to be slower, causing a lower frequency. The opposite goes to glasses with higher sounds.
In conclusion, the experiment was a success. Next time I would try different shapes and sizes of glasses with the same amount of water.
Sorry, the quality isn't the best!
The explanation for this:
Each glass makes a sound when you tap its side with a spoon because the spoon causes a vibrating sound wave. The sound wave travels through the water in the glass and eventually reaches your ear. Each glass makes a different sound because the sound waves travel through the water at different speeds, causing vibrations at different frequencies. (Frequency refers to the number of times a sound wave vibrates per second). The glasses with more water make lower sounds due to the amount of water causing the vibrations to be slower, causing a lower frequency. The opposite goes to glasses with higher sounds.
In conclusion, the experiment was a success. Next time I would try different shapes and sizes of glasses with the same amount of water.
nice
ReplyDeleteIs good
ReplyDeletenice
DeleteThere are so many questions about sound that can extend your knowledge.
ReplyDeleteHarmonics. Look this up.
This there a real world application for sound waves?
Can you cancel out noise?
What is ultrasound?
How can you use sound to navigate?