Apparatus for Demonstrating the Free Fall of Bodies
Product Code : SCL-PL-11803
Apparatus for Demonstrating the Free Fall of Bodies (SKU SCL-PL-11803) lets students watch spheres of different material fall side by side, showing that in free fall the motion does not depend on the mass of the body. It suits middle-school and secondary physics lessons on gravity. Science Lab Supplies makes the apparatus in its Saha, Ambala manufacturing unit at Plot 448, HSIIDC Industrial Area, India, and prices go from that unit straight to schools, colleges, tender contractors and distributors.
Specifications
Spheres, frame and base of the free-fall demonstrator are given one row each in the table. In short, steel or plastic spheres with diameters between 20 and 30 mm hang from a mounted steel frame, and the whole mechanism sits on a 17 x 6 cm wooden block that forms the base for a bench or demonstration table.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11803 |
| Demonstrates | Free fall of bodies with respect to their mass and shape |
| Sphere material | Steel or plastic |
| Sphere diameter | 20–30 mm |
| Suspension | Spheres hung on a mounted steel frame |
| Base | Wooden block |
| Base size | 17 x 6 cm |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Free Fall Apparatus
The apparatus is used to show that bodies released together from the same height reach the ground together, whatever their mass, when air resistance is small. It supports gravitation lessons from NCERT Class 9 onward and gives a quick, repeatable demonstration before quantitative work on the acceleration due to gravity.
- NCERT Class 9 science (Gravitation): free fall and acceleration due to gravity.
- Middle-school science: challenging the idea that heavier objects fall faster, then repeating the drop with the two 2 cm steel spheres of the Pair of Metal Balls.
- NCERT Class 11 physics (Motion in a Straight Line): introducing uniformly accelerated motion before projectile work with the three-speed Projectile Launcher.
- Comparing steel and plastic spheres to discuss mass and shape in free fall.
Standard Scope of Supply
Supply covers the mounted steel frame on its 17 x 6 cm wooden block with the steel or plastic spheres of 20–30 mm diameter. Timers or apparatus for measuring g can be added to the same quotation, each on its own line.
Packing, MOQ and Lead Time
A quotation can cover one demonstration unit or a quantity for several classrooms, and it will state the packing, delivery time and price for the number you request. Related gravity and motion apparatus can be quoted together on the same document.
Registered with an Importer-Exporter Code, Science Lab Supplies is able to ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. For a price on free-fall sets, note the quantity in the enquiry cart or message us from the contact page; formal bids are explained on the lab tender page.
Frequently Asked Questions
What does the free fall apparatus demonstrate?
It demonstrates that bodies dropped together from the same height fall together, so the acceleration of free fall does not depend on the mass of the body.
What sizes are the spheres?
The spheres are steel or plastic with diameters from 20 mm to 30 mm, hung from a steel frame on a 17 x 6 cm wooden block.
Is Science Lab Supplies the manufacturer or a trader?
Free-fall sets like this are built in the Science Lab Supplies factory at Saha, Ambala, India, which makes the company their manufacturer; every quotation is issued by that same factory.
Can I measure g with this unit?
This unit is a qualitative demonstration. For timing a fall and calculating g, see the separate apparatus for determining g listed below, which includes a digital stopwatch and a tape measure.
Related Gravity and Motion Apparatus
Free-fall demonstrations lead naturally to measuring g, timing motion with stopwatches or photogates, pendulum work and momentum. These Physics Lab items support that sequence of lessons and can be quoted together with this apparatus for a complete mechanics bench in a school laboratory.
- Apparatus for Determining "G" During the Free Fall of Bodies. — three 50 mm steel balls held at the start by a micro-magnet.
- Gravity Laboratory Set — 1.2 m scale, 19.05 mm steel ball and photogate timer with 0.1 ms resolution.
- Electronic Timer with Photogates — 480 mm track with four optical sensors and a timer with storage.
- Mathematical Pendulum Demonstration Apparatus — 200 x 125 mm mild steel base, 50 cm ruler and digital stopwatch.
- Pendulum Set — 300 x 200 mm front plate with a 90°–0°–90° scale and steel and aluminium balls.
- Digital Stopwatch — reads to 1/100 second and also shows time and date, with alarm.
- Newton's Cradle — five 19 mm steel balls on a chrome-plated steel frame.
Browse the full Physics Lab range, the Applied Mechanics range, or all physics lab equipment.
Last updated: 22 October 2026
