Advanced Resonance Apparatus with 1 m Vertical Scale Included
This resonance apparatus is a practical teaching setup for investigating air-column resonance in a tube with an adjustable effective length. It consists of a 1 m vertical stand with a metric scale and a 20 mm plastic tube connected to a 1 L water vessel. By raising or lowering the water vessel, the water level in the tube changes, which adjusts the air column length.
A tuning fork is supplied so students can check for resonance by listening at the mouth of the tube while adjusting the level. The air-column lengths where resonance is strongest are marked on the scale, then used to calculate the wavelength and frequency associated with the tuning fork.
FAQs
Q: What is included in the apparatus?
A: A 1 m vertical stand with metric scale, a 20 mm plastic tube, a 1 L water vessel, and a tuning fork.
Q: How is the air column length adjusted?
A: By raising and lowering the water vessel to change the level of water in the tube.
Q: How is resonance detected?
A: By listening at the mouth of the tube while adjusting the water level with the tuning fork sounding.
Q: What measurements are recorded?
A: The air-column lengths where resonance is evident, marked on the metric scale.
Q: What calculations does it support?
A: Determining wavelength and frequency using the measured resonant air-column lengths.
$187.00 (Ex GST)
Anodised Aluminium Resonance Tube, 50 mm Diameter, 600 mm Length
- Straight resonance tube, anodised aluminium, 50 mm diameter, 600 mm length, sound and waves practical.
- Loudspeaker used to generate resonance at tube opening, supports standing wave demonstrations in air.
- Studies relationship between frequency and resonance conditions using fixed tube length and controlled tone.
- Simple durable tube format for classroom resonance experiments, easy to handle and store.
- Requires external loudspeaker sound source, suitable for basic acoustics lessons and demonstrations.
$53.00 (Ex GST)
Chladni Plate Set (2 Plates) with Violin Bow and Sand Included
- Two bronze Chladni plates, square and round, about 150 mm diameter, classic resonance pattern set.
- Central clamp mounts plate rigidly to bench yet allows free vibration when excited by bowing.
- Resin-coated violin bow excites plate edge, finger touch selects modes and natural frequencies.
- Special sand sprinkled on plate migrates into complex nodal line patterns during resonance.
- Visual demonstration of standing waves, vibration modes, resonance, and nodal regions in acoustics.
$199.70 (Ex GST)
Kundt’s Tube Apparatus with Microphone and Speaker, 50 mm Diameter, 800 mm Length
- Transparent Kundt’s resonance tube, 800 mm scale, adjustable piston, standing wave and resonance study.
- Two side holes with sliding shutters, supports controlled openings and repeatable experiment conditions.
- Mini-speaker fits tube end, generates sound waves, driver interfaces to amplifier or oscilloscope.
- Movable miniature microphone probes sound level along tube, helps find maxima and minima positions.
- Instruction booklet included, oscilloscope ideal for measurements, amplifier also usable for audible resonance.
$360.00 (Ex GST)
Melde’s Apparatus String Vibrator, 4–8 V AC Supply
- Melde’s string vibrator for standing waves, cord attaches to armature tip hole, bench-mounted clamp included.
- Cord runs along bench and over edge via pulley, hanging weight sets known tension for repeat studies.
- Pulley-on-rod adjusts so cord stays parallel to bench top, improves alignment and pattern clarity.
- Driven by high-power signal generator, armature adjusted and clamped to vibrate at set frequency.
- Produces measurable standing-wave patterns, supports frequency–wavelength relationships in string experiments.
$185.00 (Ex GST)
Powell’s Pattern Wave Motion Apparatus with Rotatable Scale Indicator
- Powell’s wave motion demonstrator, moulded mechanism, smooth and quiet turning for classroom viewing.
- Shows transverse wave motion, particle motion perpendicular to wave direction, clear visual pattern.
- Shows longitudinal wave motion, particle motion parallel to wave direction, compare against transverse.
- Handle scale 0–360°, tracks one full cycle, supports phase and angle correlation activities.
- Cam rotation drives sine-wave action, relate angle to wave position during step-by-step rotation.
$176.00 (Ex GST)
Savart’s Tone Wheel Alloy STEM Apparatus, 10 mm and 6 mm Diameter
- Four toothed metal discs on shaft, about 73 mm diameter, rotate to generate tones in acoustics lessons.
- Stiff card pressed to wheel edge, teeth strike card, produces audible tone linked to tooth count.
- Tooth counts 36, 45, 54, 72, represent ratio 4:5:6:8 for frequency relationship teaching.
- Sound all four discs together, combined tones form natural chord, demonstrates musical intervals.
- STEM demonstrator for tone, frequency ratios, harmonics, and auditory comparison without electronics.
$88.00 (Ex GST)
Siren Disc, Lab Sound Apparatus
- Rotating siren disc sound demonstrator, air jet through hole rows produces audible siren tone
- Aluminium disc listed 175 mm diameter with 10/6 mm stem, mounts on central shaft for rotation
- Four hole rows listed 24, 30, 36 and 48 holes, stated ratios 4, 5, 6 and 8
- Combined output of all hole rows stated to form a natural musical chord during operation
- Metal blow tube with fine jet directs air onto disc holes, creates siren sound for physics teaching
From $7.50 (Ex GST)
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