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.
