Kinetic Theory Model

Product Code : LSK-CL-10253

Kinetic Theory Model (SKU LSK-CL-10253) gives a visual analogue of molecular motion in a gas: tiny metal spheres are thrown upwards inside a wide perspex tube by a vibrating piston, and their random movement stands in for gas molecules. Teachers use it in physics and chemistry lessons on states of matter and the kinetic theory of gases. Schools, colleges, training institutes, tender contractors and distributors can obtain it through Science Lab Supplies, Ambala, India.

Specifications

A piston in a wide perspex tube is vibrated by a low-voltage electric motor housed in the box that supports the tube. The motor has a speed control, and it needs a 6 V DC supply able to deliver 2.5 A. Higher speeds give larger movements of the spheres.

Applications and Experiments for the Kinetic Theory Model

The model lets a class see that particle motion is random in both direction and extent, and that supplying more energy, by turning up the motor speed, makes the particles move further and faster. It is an intuitive bridge from temperature to the average kinetic energy of molecules.

• Class 9 science: particles of matter are constantly moving, and move faster when heated.
• Class 11 physics: kinetic theory of gases and the link between temperature and molecular speed.
• Chemistry lessons on gas behaviour, diffusion and gas pressure from molecular collisions.

For demonstrations to larger groups, light the tube from the side against a black background so the spheres stand out.

Standard Scope of Supply

The Kinetic Theory Model is supplied as a single unit as described above, with the perspex tube, piston, metal spheres and motor box with speed control. The 6 V DC supply it needs is a separate item and can be added to the quotation.

Packing, MOQ and Lead Time

Quotations cover anything from one demonstration model to units for several science rooms. Each one sets out the packing, delivery time and price for your quantity, and a matching power supply or other school laboratory equipment can be priced on the same sheet.

As a registered exporter, Science Lab Supplies can use its Importer-Exporter Code to ship to buyers in Kenya, Ghana, Ethiopia, Tanzania, Uganda and the UAE. Send your requirement through our contact page, collect items in the enquiry cart, or use the lab tender page for institutional procurement.

Frequently Asked Questions

What power supply does the Kinetic Theory Model need?
The motor runs on 6 V DC and the supply must be able to provide 2.5 A. A suitable low-voltage DC unit can be quoted with the model if your lab does not have one.

Can the speed of the particles be changed?
Yes. The motor has a speed control, and higher speeds give more extensive movement of the spheres, which models the effect of raising the temperature of a gas.

Who supplies this kinetic theory apparatus?
Science Lab Supplies supplies it from Ambala, India. Quotes go directly to schools, colleges and contractors, whether the order is a single model or part of a larger lab tender.

How do I make the spheres visible to a whole class?
Light the tube from the side and place a black background behind it. The metal spheres then show up clearly even from the back of the room.

Related Particle-Model Teaching Aids

Pair the model with these items to cover the particle theory of matter from several angles: Brownian motion, changes of state, atomic structure and a power source for the motor. Together they give a teacher a complete set of demonstrations for a states-of-matter unit.

• Smoke Cell — shows real Brownian motion of smoke particles.
• Aggregate States of Water — teaching aid on solid, liquid and gas.
• Atom Activity Model — builds on particles with atomic structure.
• Power Supply Unit/ Block for DC — DC source for the motor.

Browse the full Chemistry Lab range or all school lab equipment.

Last updated: 25 September 2026