science
Grade8
Easy
Question
Which of the following would happen to the Earth if the gravity of the Sun is lost someday?
- It would fly away in a tangential direction
- It would only rotate in its position and not revolve anymore
- It would burst
- It would hit the sun’s surface
Hint:
Sun's gravity is the cause of the revolution of the earth.
The correct answer is: It would fly away in a tangential direction
Here the correct option will be 'a' i.e; it will fly away in a tangential direction. It is due to the fact that the sun's gravity allows the earth to move in an almost circular orbit which supplies the required centripetal force. We know that if centripetal force is lost an object will start moving in a straight line and following a tangential path.
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