You can shield a charge from electrical forces by putting it inside a hollow conductor.

Monjur Alahi

You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?


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Salim Ahmed Kawsar

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No

Gravitational influence of matter on nearby objects cannot be screened by any means. This is because gravitational force unlike electrical forces is independent of the nature of the material medium. Also, it is independent of the status of other objects.

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Salim Ahmed Kawsar

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 (a) No (b) Yes

Gravitational influence of matter on nearby objects cannot be screened by any means. This is because gravitational force unlike electrical forces is independent of the nature of the material medium. Also, it is independent of the status of other objects. 

If the size of the space station is large enough, then the astronaut will detect the change in Earth’s gravity (g).

Tidal effect depends inversely upon the cube of the distance while, gravitational force depends inversely on the square of the distance. Since the distance between the Moon and the Earth is smaller than the distance between the Sun and the Earth, the tidal effect of the Moon’s pull is greater than the tidal effect of the Sun’s pull.

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Salim Ahmed Kawsar

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No, It is impossible to screen the influence of gravitational force. This is mainly because unlike other forces the gravitational force acts on a body independent of the material medium or the status of the body on which it is acting or that of the body due to which it is present.

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