Figuring Out the Wavelength

At the beginning of class we quickly reviewed what a Standing Wave is; when two waves with the same properties interfere with one another a standing wave is produced.

Then we looked over some more notes showing the nodes and the anti nodes. Learning, the distance between successive nodes or anti nodes is half of a wave length.

Then amplitude at each anti node is the sum of the amplitude of each of the two original interfering waves.

[ Half of the total amplitude = amplitude of each original wave ]

Example :

1. If the amplitude of a standing wave in 40.0m what is the amplitude of each individual wave?

original wave = 20.0m (2 x original wave = standing wave)

2. The distance between the first and third node in 35.0cm, what is the wave length?

3. The distance between successive anti nodes in a vibrating string is 10.0cm. The frequency of the source is 30.0Hz. What is the wavelength of the wave? what is the velocity?
Then we worked on some questions out of the text book Physics 11, page 229 and 230 #1-3.

We also got a review for our test on Friday, which I am sure everyone has studied long and hard for! :)

The next person to write the blog is the person with the biggest hands.