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Questions and Answers
In Newtonian physics, free fall occurs when?
In Newtonian physics, free fall occurs when?
- The body is accelerating upwards
- Only gravity acts on the body (correct)
- The body is in outer space
- There is no motion of the body
In the context of general relativity, a body in free fall experiences?
In the context of general relativity, a body in free fall experiences?
- A force pulling it downwards
- No force acting on it (correct)
- A force pushing it sideways
- A force pushing it upwards
What is required for an object to be considered in free fall?
What is required for an object to be considered in free fall?
- Only the force of gravity acting on it (correct)
- Contact with a solid surface
- Presence of air resistance
- High velocity
The Moon is in free fall around the Earth despite?
The Moon is in free fall around the Earth despite?
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In a roughly uniform gravitational field, the absence of other forces results in?
In a roughly uniform gravitational field, the absence of other forces results in?
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Study Notes
Free Fall
- Free fall occurs when an object is acted upon only by the force of gravity.
- In the context of general relativity, a body in free fall experiences weightlessness.
- For an object to be considered in free fall, it must be under the sole influence of gravity, with no external forces acting upon it.
- The Moon is in free fall around the Earth despite its orbit, because the only force acting upon it is the gravitational force of the Earth.
- In a roughly uniform gravitational field, the absence of other forces results in a state of free fall, where the object accelerates towards the center of the gravitational field.
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