3B Scientific 1000816 Acoustics Kit

1000816 Includes Only:

• 1 Monochord, with ruler and musical scale
• 1 Steel string
• 1 Perlon string
• 1 Spring balance on support
• 1 Reed pipe with 8 valves
• 1 Tuning fork with plotter pen, 21 Hz
• 1 Tuning fork, 440 Hz
• 1 Light-metal tuning fork, 1700 Hz
• 1 Pipe
• 1 Variable-length closed air column
• 1 Tuned open air column
• 1 Chladni disc with handle
• 1 Galton whistle
• 1 Kundt pipe with retaining clip
• 5 g Lycopodium powder in sprinkling cellar
• 1 Metallophone with beater
• 1 Rope for demonstrating waves
• 1 Helmholtz resonator, 70 mm dia.
• 1 Helmholtz resonator, 52 mm dia.
• 1 Helmholtz resonator, 40 mm dia.
• 1 Helmholtz resonator, 34 mm dia.
• 1 Screw clamp
• 1 Plastic block
• 1 Plunger

The acoustics kit allows students to carry out numerous experiments on acoustics independently. A wide variety of sound sources are studied to begin with and the concepts of noise, bangs and tones as well as pitch and loudness are investigated. Waves along a rope are used to illustrate harmonic vibrations and overtones. There is also some extensive study of various different musical instruments. Different high-pitched tones are generated by means of a monochord and the ensuing intervals are calculated experimentally. These studies are expanded to other instruments and can easily lead over to a study of musical notes.

Experiment Topics:

• Noise, bangs, pure tones
• Vibrating air columns
• Whistles and pipes
• Vibrating bars, plates and bells
• Infra-sound
• Ultra-sound
• Tuning fork with plotter pen
• Travelling waves along a rope
• Velocity of propagation of sound
• Moving sources of sound (Doppler effect)
• Plate vibrations (Chladni figures)
• Vibrations of a bell
• Standing waves on a rope, overtones
• Sounds of musical instruments
• Timbre of the human voice
• Measurement of wavelength (Kundt figures)
• Resonance
• Helmholtz ball resonators
• Sound analysis
• Loudness
• Pitch of string instruments
• Pitch of wind instruments
• Reed pipe
• C-major scale and its intervals
• Triads, harmonies
• Semitones, major and minor