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Newton's Pendulum (Newton's Cradle)
Newton's Pendulum (Newton's Cradle) (Product Code: SCL1321/09) is a row of suspended steel balls used to show how momentum and energy pass along a line of colliding bodies in school and college physics lessons. Its 5 steel balls, at least 15 mm across, hang on two 120 mm wires in a straight line, so a released end ball sends the far ball swinging while the middle ones stay still. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Type | Newton's cradle on a support |
| Balls | 5 steel balls |
| Suspension | Each ball attached with two wires; balls aligned on a straight line |
| Ball diameter | Minimum 15 mm |
| Suspension wire length | 120 mm |
| Demonstrates | Impulse and energy passing from an end ball to the ball at the opposite end without the intermediate balls changing position |
| Product code | SCL1321/09 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Newton's Cradle Used For?
Start by releasing a single end ball and ask the class to predict what will happen; then release two together and watch two leave from the far side. Discussing why the number of balls leaving always matches the number released leads students to see that both momentum and kinetic energy are conserved in these near-elastic collisions. Raising the first ball higher makes the far ball rise higher too, a neat link between potential and kinetic energy, and the gradual dying away of the motion opens a discussion of energy lost as sound and heat.
Place the cradle on a level bench, check that the balls hang in a straight line and just touch before you begin, and release the ball rather than pushing it. The two-wire suspension keeps each ball swinging in one plane, which is why the effect is so clear when the set is well aligned. It is a favourite demonstration model in physics lab equipment across India, for classroom lessons and science exhibitions alike.
OEM Manufacturer
Jain Scientific Equipments Private Limited, trading as ScienceLab, is the OEM (original equipment manufacturer) of this Newton's cradle and makes it at its own licensed factory at Saha, Ambala, Haryana, India, rather than sourcing it from a trader. Schools, colleges, dealers and importers order it factory-direct, and replacement balls or wires for sets already in use can be requested from the manufacturer — ask us. For vendor registration, institutional buyers can record the company's GSTIN 06AAECJ8618A1ZT and its Legal Entity Identifier (LEI) 3358004HRD1JIVXKYX49. More about the company is on the company profile.
Related Lab Equipment
Follow-up apparatus for momentum, energy and oscillation lessons:
- Apparatus Collision 2 Dimension — takes collisions from a straight line into two dimensions.
- Apparatus Newton’s Second Law — links force, mass and acceleration in the same unit of study.
- Mathematical Pendulum Demonstration Apparatus — for studying the swing of a single pendulum in detail.
- Caliper — lets students measure ball diameters when discussing the set-up.
More demonstration apparatus is listed in our Lab Equipment category.
Frequently Asked Questions
How many balls does it have and how large are they?
The Newton's Pendulum (Newton's Cradle) has 5 steel balls with a minimum diameter of 15 mm. Each ball hangs on two wires 120 mm long, and the balls are aligned in a straight line on the support.
What happens if two balls are released together?
When two end balls of the Newton's Pendulum (Newton's Cradle) are released together, two balls swing out from the opposite end. The number leaving matches the number released because both momentum and kinetic energy are conserved in the collisions.
Why does the motion eventually stop?
The swinging of the Newton's Pendulum (Newton's Cradle) dies away because each collision is not perfectly elastic. A little energy is lost as sound and heat and to air resistance with every swing, so the motion gradually stops.
What should I do if the balls fall out of line?
If the balls of the Newton's Pendulum (Newton's Cradle) drift out of line, gently untwist the wires until every ball hangs in a straight row and just touches its neighbours. For a damaged wire, ask us about a replacement through the contact page.
Who manufactures the Newton's Pendulum (Newton's Cradle)?
The Newton's Pendulum (Newton's Cradle) is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory at Saha, Ambala, Haryana, India. Schools and distributors receive quotations directly from the manufacturer.
Do you supply it for bulk and export orders?
Yes. The Newton's Pendulum (Newton's Cradle) is quoted for single units, class sets and distributor quantities. Send the code SCL1321/09, the quantity and your delivery location in India or international markets through the contact page.
Request a Quote
Request a price for the Newton's Pendulum (Newton's Cradle) straight from the manufacturer on our contact page, or add it to the enquiry cart if you are building a list of mechanics demonstrations.
Last updated: 24 September 2026
