Gravitation – Online MCQs Test – Physics 9th

1. The height of a geostationary satellite is about km from the surface of the Earth.

2. Newton’s law of gravitation is consistent with Newton’s _________ law of motion.

3. The constant horizontal velocity required to put the satellite into a stable circular orbit around the Earth is called:

4. According to Newton’s law of universal gravitation, force ∝ to ___________

5. The motion of a falling ball towards Earth is due to the ____________

6. Gravitational force is always ___________

7. Sun’s gravitational attraction to the Earth is ________ times greater than that of the moon to the Earth.

8. Gravitational field of Earth is directed ____________

9. Gravitational force is always present between two objects because of their:

10. A communication satellite completes its one revolution around the Earth in hours

11. According to Newton’s law of universal gravitation, force ∝ ____________

12. Near Earth’s surface g = _____________

13. Gravitation force follows the:

14.

15. ____________ are used to put satellites into orbits.

16. Ocean tides are caused by the:

17. The velocity of a satellite is ____________ of its mass.

18. It changes the path of the Moon around the Earth.

19.

20. The first artificial satellite, Sputnik-1, was sent into space by: