Newton's Cradle
Product Code : SCL-PL-11802
Newton's Cradle (SKU SCL-PL-11802) is a row of five steel balls suspended from a frame: lift and release the end ball, and the impact passes through the row to swing out the ball at the far end. Teachers use it to illustrate action and reaction, momentum and elastic collisions in school and junior-college physics. The cradle is made by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and sold factory-direct to schools, colleges, tender contractors and distributors.
Specifications
This demonstrator has five steel balls, each 19 mm in diameter, hanging in a line from a chrome-plated steel frame. Because the balls touch at rest, a collision at one end is transferred along the row, making the equal and opposite reaction of Newton's third law easy to see from the classroom.
| Parameter | Value |
|---|---|
| SKU | SCL-PL-11802 |
| Balls | 5 steel balls |
| Ball diameter | 19 mm |
| Frame | Chrome-plated steel |
| Demonstrates | Action and reaction; transfer of momentum in collisions |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Newton's Cradle
The cradle demonstrates that every action has an equal and opposite reaction and that momentum is carried through a chain of colliding bodies. It fits the laws-of-motion chapters of NCERT Class 9 and Class 11 and is a simple, visual piece of school physics lab equipment in India for lessons and exhibitions.
- NCERT Class 9 science (Force and Laws of Motion): third law and conservation of momentum.
- NCERT Class 11 physics (Laws of Motion): impulse and momentum transfer.
- Class 11 Work, Energy and Power: introducing elastic collisions.
- Prediction exercises: releasing one, two or three balls and asking students how many will swing out.
Standard Scope of Supply
The Newton's Cradle is supplied as a single unit: the chrome-plated steel frame with its five 19 mm steel balls hanging from it, ready for demonstration on a level table. Any optional accessories that you request are listed separately on the quotation, so the contents of each order stay clear.
Packing, MOQ and Lead Time
Order one cradle for a demonstration table or several for group work; the quotation you receive sets out packing, delivery time and price for exactly that quantity. Other laws-of-motion apparatus can be listed alongside it on one quotation.
Science Lab Supplies holds an Importer-Exporter Code and can ship to buyers in Nepal, Bangladesh, Zambia, Rwanda, South Africa and Qatar. Questions about quantities or delivery can go to the contact page; add items to the enquiry cart, or see the lab tender page for tender supply.
Frequently Asked Questions
What does a Newton's Cradle show?
It shows Newton's third law and the transfer of momentum: when an end ball strikes the row, the ball at the far end swings out while the middle balls stay almost still.
How many balls does this cradle have?
It has five steel balls, each 19 mm in diameter, hung in a line from a chrome-plated steel frame so that they just touch at rest.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies manufactures the cradle itself at its works in Saha, Ambala, India, so prices and delivery terms are quoted by the producer, not a reseller.
Can several cradles be quoted for a school tender?
Yes. Send the quantity, delivery address and your tender specification, and an item-wise quotation will be prepared on the basis of the details shown here.
Related Laws of Motion Apparatus
Newton's Cradle introduces momentum and reaction in a memorable way; these four items from the Physics Lab range take the same laws-of-motion lessons further with falling bodies, carts on tracks and collision experiments, and can go on the same quotation as the cradle.
- Apparatus for Demonstrating the Free Fall of Bodies — free fall of spheres of different mass.
- Acceleration and Force Apparatus — carts on tracks for the second law.
- Wooden Dynamics Trolley — for motion and collision experiments.
- Air-Cushion Table — for studying motion and collisions on a table top.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
