Simple Resonance Tube, 1 Each

The Simple Resonance Tube by United Scientific is an acoustic resonance kit with a telescoping metal tube that adjusts from 32 cm to 60 cm and is closed at one end. It includes a 1024 Hz tuning fork, a 2 m tape measure, and an activity guide, and also works with smartphone tone apps. Science teachers use it to connect resonant tube length to frequency, wavelength, and the speed of sound, with NGSS correlations at elementary, middle, and high school levels.