Wave Motion
G3-31: Spring and Horns
Category: G3 Mechanical Waves - One Dimensional
Purpose:
To audibly illustrate transmission of energy in a mechanical wave
H4-58: MODULATION - AM RADIO
Category: H4 Music
Purpose:
Show amplitude modulation in in AM radio signals.
H4-52: SPECTRUM ANALYSIS OF MODULATION
Category: H4 Music
Purpose:
Compare and analyze the frequency spectra of various modulated sounds such as tremolo, vibrato, and beats.
H4-51: MODULATION - AM AND FM
Category: H4 Music
Purpose:
Demonstrate AM and FM signal modulation as an introduction to vibrato and tremolo.
H1-44: ULTRASONIC MOTION DETECTOR WAVE FORM
Category: H1 Nature of Sound
Purpose:
Show the wave form of the ultrasonic signal created by the ultrasonic motion detector.
H1-41: ULTRASONIC MOTION DETECTOR
Category: H1 Nature of Sound
Purpose:
Demonstrate how an ultrasonic motion detector works.
H1-32: WAVETEK AND AUDIO CART - EQUAL SOUND LEVEL STEPS
Category: H1 Nature of Sound
Purpose:
Illustrate the effect on the ear of successive changes of exactly 10 dB.
H1-31: SOUND LEVEL METER
Category: H1 Nature of Sound
Purpose:
Demonstrate use of a sound level meter.
H1-27: SPEED OF SOUND - LISSAJOUS FIGURES
Category: H1 Nature of Sound
Purpose:
Measurement of the speed of sound in air using Lissajous figures.
H4-36: LIP-BLOWN TUBE
Category: H4 Music
Purpose:
Determine the frequencies and harmonic numbers of the resonances in a plastic tube blown like a trumpet.
H1-26: SPEED OF SOUND IN GARDEN HOSE
Category: H1 Nature of Sound
Purpose:
Direct measurement of the speed of sound in air.
H1-25: SPEED OF SOUND BETWEEN TWO MICROPHONES
Category: H1 Nature of Sound
Purpose:
Measure the speed of sound by determining the travel time of a pulse between two microphones.
H1-24: SPEED OF SOUND IN HELIUM
Category: H1 Nature of Sound
Purpose:
Determine the speed of sound as a function of gas density.
H1-22: SPEED OF SOUND - USING PULSES
Category: H1 Nature of Sound
Purpose:
Determine the speed of sound in air.
H1-21: SPEED OF SOUND - PHASE CHANGE
Category: H1 Nature of Sound
Purpose:
Determine the speed of sound.
H1-12: VISIBLE WAVEFORMS ON LARGE SPEAKER
Category: H1 Nature of Sound
Purpose:
Show the loudspeaker motion produced by waves of various shapes.
H4-18: LISSAJOUS FIGURES WITH SOUND
Category: H4 Music
Purpose:
Demonstrate the relation between "consonance" (musical intervals) and frequency ratios.
H1-11: MICROPHONE AND OSCILLOSCOPE
Category: H1 Nature of Sound
Purpose:
Show the wave shape of various sounds.
H4-12: LISSAJOUS FREQUENCY MEASUREMENT
Category: H4 Music
Purpose:
Show how frequencies can be matched using Lissajous figures.