The value of G at the moon as compared with its value at the earth is :
Correct answer: B. Same
- A. Smaller
- B. Same
- C. Greater
- D. Zero
Explanation
The gravitational constant G is a fundamental constant of nature that expresses the strength of gravitational attraction between two masses. It is a universal constant, meaning it remains the same throughout the universe. Thus, the value of G is the same on the Moon as it is on Earth, or anywhere else.Options A, C, and D are incorrect because they suggest G can vary based on location, which contradicts the definition and understanding of G as a universal constant.
This question appeared on the ETEA MDCAT 2008 paper, which you can sit online with every answer explained.
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About Law of Universal Gravitation
Every two masses attract each other with a force proportional to the product of their masses and inversely proportional to the square of their separation, expressed as F = Gm₁m₂/r². Questions also involve the gravitational constant, vector direction, superposition of gravitational forces, and the distinction between gravitational force and gravitational field strength.
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