Tuning Fork Resonance Experiment Kit
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Product Code : SCL-PL-12130
Tuning Fork Resonance Experiment Kit (SKU SCL-PL-12130) pairs two matched 440 Hz tuning forks on open-ended wooden resonance boxes to show sympathetic resonance: strike one fork, silence it, and the other keeps sounding. A clamp-on mass slider also lets beats be demonstrated. As a two-fork resonance kit rather than a graded school tuning fork set in India, it centres on one frequency. Science Lab Supplies manufactures the kit at Plot 448, HSIIDC Industrial Area, Saha, Ambala, and handles quoting and dispatch for institutions and trade buyers itself.
Specifications
Forks, boxes and accessories of the 440 Hz kit each get a row in the table below. In short, both aluminium alloy forks are held within ±0.5% of 440 Hz at room temperature and screw into hollow seasoned pine boxes on threaded steel stems, so they can also be struck without the box.
| Specification | Value |
|---|---|
| SKU | SCL-PL-12130 |
| Forks | 2 |
| Fork material | High-tensile, non-rusting aluminium alloy |
| Frequency | 440 Hz (A4) each |
| Tolerance | ±0.5% at room temperature |
| Tone | Balanced prongs that suppress sub-harmonics |
| Resonance boxes | 2, hollow seasoned pine, open-ended |
| Box chamber | Volume tuned for the 440 Hz wavelength |
| Box feet | Rubber isolation feet |
| Mounting | Threaded steel stems into adapter posts, detachable |
| Striker | Rubber-headed mallet |
| Beat accessory | Adjustable prong mass slider |
| Box spacing in use | About 10–15 cm apart, open faces towards each other |
| Documentation | Illustrated experiment guide with data sheets |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Tuning Fork Resonance Kit
The kit shows that a vibrating body can set a second body of the same natural frequency vibrating through the air. Adding the mass slider detunes one fork so that both sound together with beats. It suits Class 9 and Class 11 sound topics and B.Sc. acoustics demonstrations.
- Class 9 science: sound as a mechanical wave that travels through air, followed by its reflection on the Law of Reflection of Sound Apparatus.
- Class 11 physics: natural frequency, sympathetic resonance and beats, compared with the mechanical resonance of the Resonance Strips Model 7 Metal strips.
- Amplification of sound by the resonating air in the open boxes.
- B.Sc. lectures: beat frequency as the difference of two nearby frequencies.
Standard Scope of Supply
The kit contains two calibrated 440 Hz aluminium tuning forks, two tuned wooden resonance boxes, one rubber-headed striking mallet, an adjustable prong mass slider for creating a frequency offset, and an illustrated experiment guide with data sheets.
Packing, MOQ and Lead Time
Request a price for a single kit or for several kits for a department, and the quotation will show packing, delivery time and cost for that quantity. Other physics lab equipment in India, such as tuning fork sets or a resonance tube, can be added.
Science Lab Supplies holds an Importer-Exporter Code as a registered exporter and can ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. One kit or a department’s worth can be costed after a message on the contact page or a submission from the enquiry cart; tender schedules belong on the lab tender page.
Frequently Asked Questions
How does the kit show sympathetic resonance?
Sound from the first fork travels across the gap into the open face of the second box and drives the matching fork at its own natural frequency of 440 Hz, so it keeps sounding after the first is damped.
How are beats produced?
Clamp the mass slider onto one prong. The added mass lowers that fork’s frequency slightly, and striking both forks together gives a rhythmic rise and fall in loudness.
Can the forks be removed from the boxes?
Yes. Each fork screws into its box on a threaded steel stem, so it can be taken off and struck on its own, away from the resonance box.
Is Science Lab Supplies the manufacturer or a trader?
Both forks and both pine boxes are produced at the company’s HSIIDC Industrial Area factory in Saha, Ambala, so Science Lab Supplies is the manufacturer and prepares each quotation and dispatch for the kit.
Related Tuning Forks and Sound Apparatus
Forks at other pitches extend the resonance kit to experiments on the speed of sound and string vibration, while a microphone, oscilloscope and sound meter let the 440 Hz tone be displayed and measured. These Physics Lab items pair naturally with the kit and can be priced together for a sound bench.
- Eight-Piece Welch Pattern Tuning Fork Set — satin-finished octave of forks kept in a foam-slotted case.
- Tuning Fork Set — two 256 Hz forks, one of them adjustable, for face-to-face resonance.
- Resonance Apparatus Brass Pipe — brass air column for the velocity of sound in air.
- Sonometers — 110 x 10 x 8.5 cm wooden sonometer with weights of 500 g + 6 x 500 g.
- Microphone — 55 x 110 x 22 mm crystal unit for viewing waveforms on an oscilloscope.
- Oscilloscope — 32-bit recording instrument with probes, stand and protective case.
- Digital Sound Meter — 30–130 dB readings with fast or slow response.
- Doppler Effect Kit lab — motorised 400 Hz or 500 Hz source with a digital frequency display.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 22 October 2026
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