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Questions and Answers
What is gravitational potential energy defined as?
What is gravitational potential energy defined as?
- The force exerted by a body in the gravitational field of the earth
- The velocity of a body in the gravitational field of the earth
- The distance traveled by a body in the gravitational field of the earth
- The work done by a body in bringing that body from infinity to the gravitational field of the earth (correct)
What is the role of distance in gravitational potential energy?
What is the role of distance in gravitational potential energy?
- It has no effect on gravitational potential energy
- It directly affects the gravitational potential energy (correct)
- It affects the mass of the body in the gravitational field
- It determines the gravitational force acting on the body
In the context of gravitational potential energy, what does 'infinity' refer to?
In the context of gravitational potential energy, what does 'infinity' refer to?
- A point within the gravitational field of the earth
- The surface of the earth
- A point far away from the gravitational field of the earth (correct)
- The center of the earth
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Study Notes
Gravitational Potential Energy
- Gravitational potential energy is defined as the energy an object possesses due to its position or configuration within a gravitational field.
- It is the potential energy associated with the gravitational force between an object and a massive body such as the Earth.
Role of Distance
- Distance plays a crucial role in gravitational potential energy as it affects the strength of the gravitational force between objects.
- As the distance between objects increases, the gravitational force and thus the gravitational potential energy decrease.
Concept of Infinity
- In the context of gravitational potential energy, 'infinity' refers to a hypothetical point where the object is at an infinite distance from the massive body, such as the Earth.
- At this point, the gravitational potential energy is considered to be zero, as the gravitational force is negligible at infinite distances.
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