3B Scientific™ Kundts Tube
Demonstrate standing sound waves using this glass tube and calculate wavelengths of sound using a method devised by Kundt.
3B Scientific™ Graduated Monochord
Investigate the pitch of vibrating strings as a function of their tension, length, and thickness.
3B Scientific™ Helmholtz Resonator
Hollow glass bulb with a narrow tube leading out for demonstrating acoustic resonance.
3B Scientific™ Electric Doorbell
Demonstrates electro-magnetic operation and verifies that sound waves do not propagate in fine vacuum.
3B Scientific™ Resonance Ring
Demonstrates vibration knots in determination of different frequencies.
EISCO Melde's Apparatus
Designed to show the effects of vibrations in a stretched cord, and investigate the relationship between frequency, tension and density.
GSC Resonance Apparatus
A simple apparatus that measures the velocity of sound in the air. The GSC Resonance Apparatus measures the velocity of sound in the air. Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the tubes open upper end of the Resonance Tube.
Science First™ Resonance Apparatus with Stand
Investigate the length, frequency and velocity of sound waves by studying the resonance of air columns.