Gravitation – Online MCQs Test – Physics 9th

1. Spring balance is used to measure ______________

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

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

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

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

6. Gravitational force is always ___________

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

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

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

10. ____________ are used to put satellites into orbits.

11. Near Earth’s surface g = _____________

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

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

14. Numerical value of G is ___________

15.

16. Gravitation force is _____________ of the medium between the objects.

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

18.

19. Earth’s field force is a:

20. Ocean tides are caused by the: