Cavendish Gravitational Balance
Product Code : EL-PLE-13144
Eduscope India is a leading Cavendish Gravitational Balance
Quick Answer: Cavendish Gravitational Balance measures the Universal Gravitational Constant, G, and demonstrates the gravitational attraction between masses on a benchtop.
The apparatus is based on the design first used by Henry Cavendish in 1798 to measure the density of the Earth, from which G can in turn be derived — one of the most famous experiments in the history of physics, sometimes called "weighing the Earth." This version is precisely constructed and substantially less expensive than earlier models, allowing measurements of G to better than 15% relative error using either of two methods: the initial acceleration method, which measures the initial rate of angular acceleration as a large mass is brought close to the torsion balance, or the equilibrium displacement method, which lets the balance settle fully and measures its final angular displacement. Because gravity is by far the weakest of the four fundamental forces, detecting and quantifying it directly gives students a rare, hands-on physics instruments supplier India experience with one of physics' most elusive interactions, and the same setup can also be used to verify the Inverse Square Law for gravitational forces.
| Specification | Value |
|---|---|
| Measures | Universal Gravitational Constant (G) |
| Accuracy | Better than 15% relative error |
| Methods | Initial acceleration method or equilibrium displacement method |
| Also verifies | Inverse Square Law for gravitational forces |
EduScope India's physics range, including the Cavendish Gravitational Balance, is exported to Central and Eastern European markets such as Poland, the Czech Republic, Hungary and Romania, supporting college and university lab equipping in the region.
This apparatus is also among the physics lab equipment India EduScope India regularly supplies through bulk institutional and government lab-equipment orders, school chains and CSR-funded science-education programs.
It is part of EduScope India's Physics Lab Equipment range, and pairs naturally with the Foucault's Pendulum Apparatus for a broader set of hands-on demonstrations of otherwise abstract physics phenomena.
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