Question:
When a satellite moves from the farthest stable orbit to the nearest stable orbit towards the earth, its gravitational potential energy
When a satellite moves from the farthest stable orbit to the nearest stable orbit towards the earth, its gravitational potential energy
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Potential energy is always maximum (zero) at infinity and decreases as an object moves into a gravitational field.
Updated On: Apr 27, 2026
- increases
- becomes zero
- remains constant
- decreases
- first increases then decreases
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Gravitational potential energy ($V$) is given by $- \frac{GMm}{r}$.
Step 2: Meaning
The potential energy is negative and its magnitude depends inversely on the distance ($r$) from the center of the Earth.
Step 3: Analysis
As the satellite moves closer ($r$ decreases), the value of $V$ becomes "more negative," which means the potential energy decreases.
Step 4: Conclusion
Hence, the gravitational potential energy decreases.
Final Answer: (D)
Gravitational potential energy ($V$) is given by $- \frac{GMm}{r}$.
Step 2: Meaning
The potential energy is negative and its magnitude depends inversely on the distance ($r$) from the center of the Earth.
Step 3: Analysis
As the satellite moves closer ($r$ decreases), the value of $V$ becomes "more negative," which means the potential energy decreases.
Step 4: Conclusion
Hence, the gravitational potential energy decreases.
Final Answer: (D)
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