Unit 9.

In class on friday we did a lab relating to sound. We used a tuning fork and hit it so that it vibrated at a frequency and it would make noise. We did this 5 times with tuning forks of different frequencies, so they made different tones each time you struck it. We would strike the tuning fork and hold it over a tube that was in water and adjusted the height of tube so that we could hear the noise it makes. We would measure how high the tube was from the water. We would use this length and multiply it by four to figure out what the wavelength was. Then we took the wave length and multiplied it by the frequency labeled on each fork to calculate the wave speed. I found this activity to be really interesting and enjoyable.

Here a picture of me holding some headphones because these headphones represent sound.