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Questions and Answers
What is the universal law of gravitation?
What is the universal law of gravitation?
- Force between two objects is directly proportional to the sum of their masses and inversely proportional to the square of the distance between their centers
- Force between two objects is directly proportional to the square of the distance between their centers and inversely proportional to the product of their masses
- Force between two objects is directly proportional to the cube of the distance between their centers and inversely proportional to the product of their masses
- Force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers (correct)
What is the acceleration due to gravity near the surface of the Earth?
What is the acceleration due to gravity near the surface of the Earth?
- 10.24 m/s²
- 6.55 m/s²
- 7.32 m/s²
- 9.81 m/s² (correct)
What happens to the gravitational force between two objects when the distance between them is doubled?
What happens to the gravitational force between two objects when the distance between them is doubled?
- It becomes double the original force
- It becomes one-fourth of the original force (correct)
- It remains the same
- It becomes half of the original force
