



Mechanical Equivalent of Heat J Apparatus for Mechanical and Electrical Heating
AUD 530.90(Ex GST)
AUD 530.90(Ex GST)
- Mechanical equivalent of heat apparatus for physics teaching
- Also known as J apparatus
- Old unit patterned on the Griffin model as listed
- Demonstrates conversion of mechanical work into heat
- Allows comparison with electrical heating method
- Model reference listed as HL3800-001
- Uses a solid copper calorimeter as listed
- Permits mechanical friction heating of the calorimeter
- Permits electrical heating of the calorimeter
- Temperature measurement is by thermometer as listed
- Suitable for supervised heat and energy experiments
- Use under appropriate laboratory or educational supervision
- Description
Description
The Mechanical Equivalent of Heat J Apparatus, also known as a Joule’s mechanical equivalent of heat apparatus, is designed for physics demonstrations involving the relationship between mechanical work, heat generation and electrical heating. This apparatus is described as an older style unit patterned on the old Griffin model in the UK, where mechanical work done is converted into heat and compared with the electrical equivalent. The listed model HL3800-001 permits both mechanical friction heating and electrical heating of a solid copper calorimeter, allowing students to compare two methods of heating within the same apparatus.
Temperature measurement is carried out using a thermometer as listed, making the apparatus suitable for teacher-guided quantitative or semi-quantitative classroom investigations. This product is useful for teaching work-energy conversion, frictional heating, electrical heating, heat capacity, temperature rise and the experimental basis of the mechanical equivalent of heat. Users should confirm the included components, required thermometer type, electrical input requirements, mechanical drive arrangement, calorimeter setup, experimental method and any replacement part availability before ordering or use.
Do not connect to unsuitable electrical supplies or operate beyond the approved classroom method. Use only with the correct low-voltage laboratory power source if electrical heating is used. During operation, the copper calorimeter and nearby components may become hot. Allow the apparatus to cool before handling, adjustment or storage. Keep hands, loose clothing, hair and cords clear of any moving or friction components during mechanical heating demonstrations.
This product is intended for laboratory or educational settings only and should be used under appropriate supervision. This item is supplied as the selected Mechanical Equivalent of Heat J Apparatus only. Thermometer, power supply, leads, balance, stopwatch, masses, worksheets, PPE and additional physics accessories are not included unless specified separately.
LabChoice Australia supplies Mechanical Equivalent of Heat Apparatus and physics teaching equipment for school science laboratories, university teaching laboratories and educational facilities requiring practical tools for heat, energy and thermodynamics demonstrations.
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Emma Roberts
11 months ago
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
Michael Grant
1 year ago
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
Sarah Nguyen
1 year ago
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
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1 year ago
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
Mark Stevens
1 year ago
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab






























