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Questions and Answers
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 one-fourth of the original force. (correct)
- It remains the same.
- It becomes double the original force.
- It becomes half of the original force.
What is the SI unit of gravitational force?
What is the SI unit of gravitational force?
- Pascal
- Newton (correct)
- Kilogram
- Joule
What is the universal law of gravitation?
What is the universal law of gravitation?
- It states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. (correct)
- It states that the force of gravity is weaker on larger objects.
- It states that the force of gravity is independent of the masses of the objects.
- It states that the force of gravity is stronger on heavier objects.
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Study Notes
Gravitational Force and Distance
- When the distance between two objects is doubled, the gravitational force between them becomes one-quarter of its original value.
- This is because the gravitational force is inversely proportional to the square of the distance between the objects.
Unit of Gravitational Force
- The SI unit of gravitational force is the Newton (N).
Universal Law of Gravitation
- The universal law of gravitation states that every point mass attracts every other point mass by a force acting along the line intersecting both points.
- The law is often referred to as the law of universal gravitation, and it was first presented by Sir Isaac Newton.
- The law applies to all objects with mass, and it is a fundamental principle in understanding the behavior of objects in the universe.
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