Waves and Oscillations

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3B 10.10 - Waves in Motion
	Demonstrates: Constructive interference. Description: A rubber rope is attached to the wall. Instructor is the oscillator.

3B 10.20 - Standing Wave with strobe
	Demonstrates: Shows the students a standing wave. By adjusting the frequency of either the strobe light or the function generator, can show the students the wave "stopped'. Description:

3B 10.20a - Guitar String with Strobe
	Demonstrates: Wave motion on a guitar string. Description: Guitar is strummed, because it has a strobe light on it, students are able to see the waves on the strings.

3B 10.30 - Black Wave Table
	Demonstrates: Standing waves, reflected waves. Description: Carefully move the end rod up and down to create wave. Instructor Page

3B 10.35 - Red Wave Table
	Demonstrates: Standing waves, reflected waves. Description: Carefully move the end rod up and down to create wave. Instructor Page

3B 10.40 - Partial Reflection of Wave
3B 10.40 - Partial Reflection of Wave	Demonstrates: Effects of discontinuity on traveling waves. Description: Traveling wave partially transmits/reflects at a discontinuity in the wave tables' rod length.

3B 10.50 - The Sine Wave
	Demonstrates: Phase and harmonic components of the sine wave. Description: A mechanical representation of a sine wave.

3B 20.20 - Anchored Slinky
	Demonstrates: Transverse and longitudinal wave motion. Description: A spring laid down on its side, fixed at one end.

3B 20.25 - Slinky
	Demonstrates: Waves. Description: A tight steel spiral. Good Great Fun!

3B 22.20 - Flame Tube (Sonic Tube O' Fire)
	Demonstrates: Wave propagation. Description: Up to 9 standing waves can be illustrated. Lower frequencies causes fewer waves.

3B 30.30 - Bell in a Vacuum
	Demonstrates: Sound does not travel in a vacuum. Description: A bell is inside a bell jar which can be evacuated.

3B 39.10 - Tin Can Phone
	Demonstrates: Sound travels through a medium other than air. Description: Sound travels through a metal spring from one end of the phone to the other.

3B 40.10 - Doppler Effect Arm
	Demonstrates: Sound frequency changes. Description: A Sonalert siren swings around to show effect.

3B 40.20 - Doppler Effect Ball
	Demonstrates: Doppler effect on sound. Description: A Nerf ball with a small speaker inside that can be thrown around by students.

3B 45.15 - Ripple Tank
	Demonstrates: Concept of light waves. Description: Shadows from waves created in the tank are projected on to a screen.

3B 50.40 - Moiré Pattern Transparencies
	Demonstrates: Two-source interference. Description: Use two transparencies with overhead projector. Rotate top sheet for effect.

3B 60.10 - Differential Tuning Forks
	Demonstrates: Changing frequencies. Description: Stops can be moved to change the pitch.

3B 60.20 - Beats
	Demonstrates: Pure tones with slightly different frequencies. Description: Beats occur when one speaker's frequency varies slightly from the other's.

3B 60.40 - Metronome
	Demonstrates: Beats. Description: An adjustable time keeping device found in almost every piano teacher's home.

3B 70.10 - Coupled Tuning Forks
	Demonstrates: Louder sound at same frequency. Description: Tuning fork can be placed on the resonance box.