H3 Standing Sound Waves

Demonstrations in this section illustrate standing sound waves in open and closed systems, and resonance as sound production and amplification. Here are also demonstrations of the effects of resonance on objects.

Articles
Image	Title
	H3-01: STANDING SOUND WAVES - TWO SOURCES Demonstrate the origin of standing waves from two identical sources.
	H3-02: STANDING SOUND WAVES - REFLECTION Demonstrate the origin of standing waves from one source and its reflection.
	H3-03: REFLECTION OF PULSES IN TUBE Demonstrate the phase of pulses reflected from open ends and closed ends of a tube.
	H3-04: KUNDT'S TUBE - STROKED ROD Demonstrate standing waves in an air column.
	H3-05: KUNDT'S TUBE - OSCILLATOR DRIVEN Demonstrate standing waves in an air column.
	H3-11: TUNING FORKS AND RESONANT TUBE Illustrate resonance in an air column.
	H3-12: ROARING TUBE - 4 FT Demonstrate standing sound waves in air excited by convection currents.
	H3-13: ROARING TUBE - 8 FT Demonstrate standing sound waves in air excited by convection currents.
	H3-14 TWIRL-A-TUNE Demonstrates standing wave resonances in an open tube
	H3-15: TWIRL-A-TUNE AND VACUUM CLEANER Demonstrate standing wave resonances in an open tube.
	H3-16: SINGING PIPES Show sound resonance created by convection currents in a tube.
	H3-17 FLAME TUBE Demonstrates standing waves in a tube
	H3-21: SOUND RESONANCE IN WATER TUBE Demonstrate standing waves in a closed tube.
	H3-22: RESONANCE TUBE - OSCILLATOR AND PLUNGER Demonstrate standing waves in a closed tube.
	H3-23: RESONANCE TUBE - OSCILLATOR, PLUNGER AND MICROPHONE Demonstrate standing sound waves in a closed tube.
	H3-24 OPEN AND CLOSED PIPES Demonstrates open and closed tube standing resonances
	H3-25: GALTON'S WHISTLE Produce high-frequency tones.
	H3-31: DUCK CALL Quack like a duck
	H3-32: RESONANCE IN TUBE - POURING WATER Demonstrate standing wave resonances in an acoustical closed tube.
	H3-33: RESONANCE FROM WHITE NOISE IN VARIABLE TUBE Demonstrate resonance in a closed tube, and to show that noise contains a large range of frequencies..
	H3-41: RESONANCE CURVE - HELMHOLTZ RESONATOR Demonstrate the resonance behavior of a Helmholtz resonator.
	H3-42: RESONANCE CURVES - OPEN AND CLOSED TUBES Demonstrate the resonance behavior of open and closed tubes.
	H3-51: SONOMETER WITH TUNING PEGS Demonstrate standing waves in a stretched wire and to demonstrate Mersenne's first and second laws.
	H3-52: SONOMETER WITH WEIGHTS Demonstrate standing waves in a stretched wire and to demonstrate Mersenne's laws.
	H3-61 BEAKER BREAKER Breaks a glass beaker with sound
	H3-62: TEACUP STANDING WAVES Demonstrate circular standing waves in an interesting way.
	H3-71 STROKED ALUMINUM ROD Illustrates longitudinal standing waves in an aluminum rod.
	H3-72: TUNING RODS Hear longitudinal standing wave resonances in aluminum rods.
	H3-73: TUNING RODS - SUSPENDED Illustrate transverse standing waves in aluminum rods.
	H3-74: TUNING BAR PARADOX - EFFECT OF WIDTH Illustrate transverse vibrations of a solid bar struck in the center.