Experimentally measure gravitational force

In summary, there have been multiple experiments conducted by scientists, including Cavendish in 1797, to measure the weak gravitational force between two objects. These experiments have been recreated in undergraduate laboratories and apparatus for such experiments can be found from scientific equipment companies or through homemade versions on platforms like YouTube. Another interesting read is the Forward Mass Detector, which has a patent available from the U.S. Patent Office.
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Taseng Mancheykhun
Can we experimentally measure the very weak gravitational force between two objects just like we can detect magnetic field lines by a deflecting compass.
 
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Google searches for "cavendish experiment" and "cavendish apparatus" should find:

1. undergraduate laboratory versions of the Cavendish experiment
2. apparatus sold by scientific laboratory equipment companies (e.g. Pasco Scientific) for such undergraduate experiments
3. "homemade" versions of the Cavendish experiment (YouTube videos etc.)
 

Related to Experimentally measure gravitational force

1. How do you measure gravitational force experimentally?

To measure gravitational force experimentally, you can use a simple pendulum set-up or a torsion balance. Both of these methods involve measuring the amount of deflection caused by the gravitational force acting on an object.

2. What equipment is needed to measure gravitational force?

The equipment needed to measure gravitational force includes a pendulum or torsion balance, a stopwatch or timer, a ruler or measuring tape, and a known mass to act as the object experiencing the force.

3. How accurate are experimental measurements of gravitational force?

The accuracy of experimental measurements of gravitational force depends on the precision of the equipment used and the skill of the experimenter. With careful calibration and measurement techniques, the results can be quite accurate.

4. What factors can affect the measurement of gravitational force?

The measurement of gravitational force can be affected by factors such as air resistance, friction in the pendulum or torsion balance, and the accuracy of the timing and measuring equipment. Additionally, the strength of the gravitational force can vary depending on the distance between the objects and the masses of the objects.

5. How can the results of experimental measurements of gravitational force be used?

The results of experimental measurements of gravitational force can be used to calculate the gravitational constant, which is a fundamental constant in physics. It can also be used to validate the laws of gravity and to study the effects of gravity on different objects and systems.

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