Gravitation – Online MCQs Test – Physics 9th

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

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

3. Newton’s law of gravitational holds between every two objects on the _________

4. The time required for a satellite or complete one revolution around the Earth in its orbit is called its:

5. ___________ was the first scientist who gave the concept of gravitation.

6. Mass of the Earth is ___________

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

8. Near Earth’s surface g = _____________

9. Gravitation force follows the:

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

11. Weight is measure in:

12.

13. Earth’s field force is a:

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

15.

16. In 1798, he completed the 1^st experiment that demonstrated Newton’s Law of universal gravitation.

17. Numerical value of _______________ remains constant everywhere.

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

19. The gravitational pull of the Earth on the satellite provides the _________ needed to keep a satellite in orbit around some planet.

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