The topic of the Club’s February 24^th demonstration was “Sound and Waves.” Through this demonstration, the students demonstrated how sound travels as waves by having kids talk into a microphone connected to an oscilloscope. Tuning forks were used to illustrate properties of pitch, and the students swung a tennis ball tied to rope that they had engineered with sound to illustrate the Doppler Effect—change in perceived frequency of sound waves resulting from motion of the source of the sound waves. Through the use of a wave table, students could visualize wave movement, and in what was probably the most popular exhibit, a long, narrow slinky was used to demonstrate how waves and wave pulses travel along a wire or rope as on a guitar or piano string.

The Physics Club will put on two new “Physics Day” demonstrations this semester at the museum on March 31 and April 28. The demonstrations take place from 10:00-11:00 a.m. and again from 6:30-7:30 p.m. The Club will also be taking its exhibit on the road to rural classrooms and is interested in performing for other groups in the community.