Today we looked at the doppler effect with the help of an neat little program found at http://www.lon-capa.org/~mmp/applist/doppler/d.htm
We then played a virtual piano through a virtual oscilloscope and listened and compared how the instruments sounded and looked.
Following this we completed the good vibrations lab on page 30, the sounding board lab on page 39; we sketched the inner ear, played with the tin can telephones and demonstrated resonance using a matched pair of tuning forks.
At the end of class we went back to talking about pressure--we put a balloon in a bottle, pressurized the bottle and watched the balloon shrink--we also pulled a vacuum on a marshmallow and watched the marshmallow expand.
Remember--the rest of the homework points are due on Monday for B day classes--tuesday for A day classes and the next test will be on Friday the 17th of October.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment