Syvum Home Page

Home > Physics > Gravitation >


Previous
Previous
Contents
Contents
Next
Next

Refresh or reload the page for a new set of questions.

Physics: Multiple Choice Questions on Gravitation


1.

If the distance between two masses is increased by a factor of 5, the gravitational force of attraction between them will

  reduce by a factor of 5

  reduce by a factor of 25

  remain Same

  increase by a factor of 5

2.

A satellite orbits at a height h above the Earth's surface. Let R be the Earth's radius. If Ve is the escape velocity and Vo is the orbital velocity of the satellite orbiting at a height h << R, then

  Vo2 = 2 Ve2

  Ve2 = 2 Vo2

  Ve = 2 Vo

  Ve = Vo

3.

If the escape velocity of a rocket from the surface of the Earth is ve , then the escape velocity of the same rocket from the surface of a planet whose acceleration due to gravity as well as radius are 4 times that of the Earth is

  4 ve

  16 ve

  ve / 4

  ve

4.

The figure shows the elliptical orbit of a planet with the Sun at the focus. The areas of regions 1 and 2 are the same. If the planet takes times t1 to go from one end to the other end of region 1 and t2 to go from one end to the other end of region 2, then what is the relationship between t1 and t2?

  t1 = t2

  t1 < t2

  Cannot be determined

  t1 > t2

5.

A planet is moving around the Sun in a circular orbit of circumference C. The work done on the planet by the gravitational force F of the Sun is

  FC/2

  FC

  Zero.

  F/C

Click the "Score and Show Answer(s)" button for explanations.



Previous
Previous
Contents
Contents
Next
Next

Contact Info © 1999-2015 Syvum Technologies Inc. Privacy Policy Disclaimer and Copyright