Oscillations and Waves
3C - Acoustics
 |
3C 10.10 - Ear Drum Demos:
Demonstrates: How the ear drum operates. Description: One is similar to a drum. When you thump on it a puff of air can be felt at the other end of the tube. The other is a liquid filled beaker. When pressure is applied on the top the ball bearing inside moves. |
 |
3C 20.20 - Differential and Sympathetic Tuning Fork Set:
Demonstrates: Beat phenomena and resonance. Description: A set of two resonance tuning forks, one is adjustable for different pitch. |
 |
3C 20.30 - Siren:
Demonstrates: Changing pitch with changing frequencies. Description: Compressed air is forced through the spinning disk's holes. |
 |
3C 40.10 - Lecture Hall Acoustics:
Demonstrates: Nodes. Description: Two speakers emit a continuous tone. Students walk around until they find a node. |
 |
3C 50.10 - Introduction to Sound:
Demonstrates: Different sounds have different wave patterns. Description: The keyboard's signal is displayed on the large overhead screen using the Proxima projector and a computer input. |
 |
3C 50.20 - Sound Meters:
Demonstrates: Sound levels in decibels. Description: A hand held meter. |
 |
3C 50.30 - Velocity of Sound in Air:
Demonstrates: How fast sound moves in air. Description: A microphone, a speaker, an oscilloscope, a function generator, a pre-amp and an amplifier all combine to measure the speed of sound. |
 |
3C 60.10 - Electronic Organ:
Demonstrates: A large variety of sounds. Description: A basic battery operated electronic keyboard. |