Apparatus for Determining "G" During the Free Fall of Bodies.
Product Code : SCL-PL-11804
Apparatus for Determining "G" During the Free Fall of Bodies (SKU SCL-PL-11804) measures the acceleration due to gravity by timing a steel ball as it drops through a measured height. A magnet release and a contact plate start and stop the timing, so students work from repeatable readings rather than reaction times. Science Lab Supplies manufactures the set at Plot 448 in the HSIIDC Industrial Area, Saha, Ambala, India, and handles quotations for schools, colleges, tender contractors and distributors from the same site.
Specifications
Release, timing and measuring parts of the g-by-free-fall set are each listed in a row below. In short, a micro-magnet holds a ball above three contact pins that open a switch on release to start the digital stopwatch; the ball stops the timer on the bottom contact plate, which holds it without bouncing, and a 1.5 m / 2 m tape measures the height.
| Specification | Value |
|---|---|
| SKU | SCL-PL-11804 |
| Timer | Stopwatch, digital, timing in seconds |
| Height measurement | Tape measure, 1.5 m / 2 m |
| Spherical bodies | 50 mm diameter |
| Steel balls | 3 included |
| Start position | Held by a micro-magnet |
| Release mechanism | Three contact pins under the release |
| Start of timing | Contact-pin switch opens when the ball is released |
| End of timing | Contact plate at the bottom stops the timer |
| Ball on landing | Held firmly on the plate so it does not bounce |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the g by Free Fall Apparatus
The apparatus is used to find g from the fall time t over a measured height h, using h = ½gt². Repeating the drop at several heights and plotting h against t² gives a straight line whose slope is g/2, an exercise suited to school and first-year college mechanics.
- NCERT Class 9 science (Gravitation): measuring the acceleration due to gravity, with drop heights checked against the 100 cm rule of the Measuring Rulers Set.
- NCERT Class 11 physics (Motion in a Straight Line): equations of uniformly accelerated motion.
- Graphing h against t² and discussing experimental error in a practical record.
- Diploma and first-year undergraduate mechanics labs: determination of g by free fall, compared with the brass-bar Kater's Reversible Pendulum method.
Standard Scope of Supply
The set comprises the release mechanism with micro-magnet and three contact pins, the bottom contact plate, a digital stopwatch, a 1.5 m / 2 m tape measure for the drop height, and three steel balls. Further timing or pendulum apparatus can be shown as separate lines on the quotation.
Packing, MOQ and Lead Time
We quote for anything from a single set to a batch for every practical bench, and the quotation spells out packing, delivery time and price for that number. Related mechanics items can join the same quotation when you are sourcing school physics lab equipment in India in one order.
Holding an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Zambia, Rwanda, South Africa, Qatar, Sri Lanka and Vietnam. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Tell us the number of g-measurement sets you require via the contact page or the enquiry cart, and turn to the lab tender page if the purchase is tendered.
Frequently Asked Questions
How does the apparatus start and stop the timer?
Releasing the ball opens the switch formed by the three contact pins, which starts the stopwatch; the ball stops it on hitting the contact plate at the bottom.
What is included in the set?
The release mechanism with micro-magnet and contact pins, the bottom contact plate, a digital stopwatch, a 1.5 m / 2 m tape measure and three steel balls are included.
Is Science Lab Supplies the manufacturer or a trader?
The g apparatus is assembled in the Science Lab Supplies plant in Saha, Ambala, India, making the company its manufacturer, and your quotation comes straight from that plant.
Why does the ball not bounce at the bottom?
The contact plate holds the ball firmly when it lands, so it stays in place after the timer stops and can be picked up for the next drop.
Related Gravity and Timing Apparatus
Measuring g links free-fall demonstrations, pendulum work and accurate timing. These Physics Lab items fill in those neighbouring practicals, from photogate timers to simple pendulums, and any of them can be quoted together with this apparatus for a single mechanics order.
- Apparatus for Demonstrating the Free Fall of Bodies — spheres hung on a steel frame over a wooden block.
- Gravity Laboratory Set — one built-in and two external photogates, timing range 0.0001–999.99 s.
- Electronic Timer with Photogates — four photogates on a base with graduated inclination angle.
- Mathematical Pendulum Demonstration Apparatus — sphere on a thread, 500 x 10 mm rod and digital stopwatch.
- Pendulum Set — retort stand with cast-iron base and a 1 m cord.
- Digital Stopwatch — 24 h timer reading to 0.01 s.
- Ticker Tape Timer — electromagnet striker marking dots, in 6 V and 12 V units.
Browse the full Physics Lab range, the Applied Mechanics range, or all physics lab equipment.
Last updated: 22 October 2026
