JEE PHYSICS UNIT 06
QUIZ NO 3
TOTAL QUESTIONS = 20


1. The gravitational force between two objects is proportional to


2. The escape velocity from the surface of a planet depends on


3. The value of acceleration due to gravity decreases with


4. If the radius of Earth decreases by 1% while its mass remains constant, the acceleration due to gravity at its surface will


5. Kepler’s third law states that the square of the time period of a planet is proportional to


6. The gravitational potential at a point is defined as


7. The time period of a satellite in a circular orbit of radius R around Earth is proportional to


8. A satellite is revolving around Earth in a circular orbit. The energy required to move the satellite to a higher orbit will be


9. The variation of acceleration due to gravity with height h above the Earth’s surface is approximately given by


10. The escape velocity from Earth is 11.2 km/s. If the mass of Earth were halved while its radius remained the same, the escape velocity would be


11. The value of gravitational potential at a point inside a uniform spherical shell is


12. The ratio of gravitational acceleration on the surface of the Moon to that on the Earth is approximately


13. A geostationary satellite revolves around the Earth from


14. The total energy of a satellite in a circular orbit is equal to


15. The acceleration due to gravity on the Moon’s surface is one-sixth that of Earth. If the time period of a simple pendulum on Earth is T, its time period on the Moon will be


16. A particle is thrown vertically upwards with a velocity less than escape velocity. The sum of its kinetic and potential energy is


17. A satellite revolving around the Earth is in a stable orbit. If its speed increases slightly, the radius of its orbit will


18. The work done by the gravitational force on a satellite moving around Earth in a circular orbit is


19. The ratio of escape velocity to orbital velocity for a planet is


20. If the Earth were to rotate faster, the value of g at the equator would



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