Gravity Laboratory Set
Product Code : SCL-PL-12345
Gravity Laboratory Set (SKU SCL-PL-12345) measures the acceleration due to gravity by timing a falling steel ball between photogates on a graduated upright. The digital timer resolves 0.1 ms, so students obtain g from real fall times instead of stopwatch estimates. It suits Class 11 physics, B.Sc. mechanics and engineering physics labs. Built by Science Lab Supplies at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, the set is priced for schools, colleges, tender contractors and distributors by the factory.
Specifications
Rod, scale, ball, base and timer data each take a row below. In short, a 125 cm aluminium rod on a 260 x 260 x 8 mm triangular base carries a 1.2 m millimetre scale, and a 19.05 mm steel ball falls past three photogates read by a battery timer with a 4½-digit LCD and five-value memory.
| Specification | Value |
|---|---|
| SKU | SCL-PL-12345 |
| Upright | Aluminium rod, 125 cm |
| Scale length | 1.2 m |
| Scale divisions | 1 mm |
| Steel ball diameter | 19.05 mm |
| Base | Triangular, 260 x 260 x 8 mm |
| Timer display | 4½-digit LCD |
| Timing range | 0.0001–999.99 s |
| Timing resolution / accuracy | 0.1 ms |
| Photogates | 1 built-in, 2 external |
| Memory | 5 measured time values |
| Timer power | 6 V DC (4 x LR03 batteries) |
| Timer dimensions | 73 x 60 x 77.5 mm |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Gravity Laboratory Set
By setting the photogates at measured heights on the scale and timing the ball's fall between them, students plot distance against time squared and read g from the gradient. Using two external gates also shows the ball's speed increasing as it falls.
- Class 11 physics: motion in a straight line and free fall under gravity, with hand timings on School Digital Stopwatches set beside the photogate times.
- Determining the acceleration due to gravity from s = ½gt².
- Projectile topics that follow free fall, using the Projectile Launcher with its built-in protractor.
- B.Sc. mechanics practicals: error analysis with repeated 0.1 ms timings.
- Engineering physics labs: kinematics and data-handling exercises.
Standard Scope of Supply
The set comprises the 125 cm aluminium rod, the 1.2 m scale, the triangular base, the 19.05 mm steel ball and the digital timer with its built-in photogate and two external photogates. The timer runs on four LR03 batteries; any optional items are listed on the quotation.
Packing, MOQ and Lead Time
A quotation can be prepared for one set or for enough for every group in a physics practical. It confirms packing, delivery time and price for that quantity, and other free-fall, pendulum and timing apparatus can be added to the same quotation.
Registered as an exporter under an Importer-Exporter Code, Science Lab Supplies is able to ship to buyers in Ethiopia, Tanzania, Uganda, the UAE, Saudi Arabia and Oman. Gravity sets for each practical group can be requested on the contact page or added to the enquiry cart, while bids for physics lab equipment in India and abroad go through the lab tender page.
Frequently Asked Questions
How precise is the timer in the Gravity Laboratory Set?
The timer has 0.1 ms resolution and accuracy over a range of 0.0001 to 999.99 s, and it stores five measured times, so a series of drops from different heights can be read back after the runs.
How many photogates are included?
Three: one built into the timer and two external photogates that are set along the 1.2 m scale with 1 mm divisions on the 125 cm rod, so the fall distance between gates can be read directly.
Is Science Lab Supplies the manufacturer or a trader?
The gravity set is made at the company's Ambala factory in Saha, India, where Science Lab Supplies manufactures it, and the quotation you receive comes from that factory.
What powers the timer?
It runs on 6 V DC from four LR03 batteries, so no mains socket is needed at the bench. The timer measures 73 x 60 x 77.5 mm and stores five time values on its LCD.
Related Free-Fall, Pendulum and Timing Apparatus
These items work alongside the gravity set: two other free-fall apparatus for different class levels, pendulum sets as a second route to g, a photogate timer for motion on an incline, an air track, and a stopwatch for simpler timing. Any of them can go on one quotation.
- Apparatus for Determining "G" During the Free Fall of Bodies. — 50 mm spheres held by a micro-magnet, with tape measure.
- Apparatus for Demonstrating the Free Fall of Bodies — 20–30 mm steel or plastic spheres.
- Pendulum Set — 300 x 200 mm plate with a 90°–0°–90° scale.
- Mathematical Pendulum Demonstration Apparatus — 50 cm ruler and digital stopwatch on a steel base.
- Electronic Timer with Photogates — graduated incline with three timed intervals.
- Air Track — 2 m track with speed flags for photogate timing.
- Digital Stopwatch — 24 h display reading to 0.01 s, with alarm.
Browse the full Physics Lab range, the Applied Mechanics range or all physics lab equipment.
Last updated: 22 October 2026
