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.

The gravitational acceleration on a planet is 20% less than that on the Earth. A rocket takes a man from the Earth to this planet. On neglecting the effect of all other bodies in the sky, which curve in the figure best describes the change in the man's weight with distance traveled?

  B

  C

  A

  D

2.

An Earth satellite of mass m revolves at a height h from the surface of the Earth. If R is the Earth's radius and g is the acceleration due to gravity at the surface of the Earth, then the velocity of the satellite is given by

 

 

 

 

3.

Two planets of radii R1 and R2 have the same density. The ratio of their accelerations due to gravity at the surface is

  (R2 /R1)2

  R1 /R2

  R2 /R1

  (R1 /R2)2

4.

If the value of gravitational acceleration at a height h above the Earth's surface is the same as that at a depth d below the Earth's surface (with both h and d small compared to the Earth's radius R), then

  h = d

  h = 2 d

  h = d / 2

  h = d2 / R

5.

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

  Ve = 2 Vo

  Ve2 = 2 Vo2

  Ve = Vo

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



Previous
Previous
Contents
Contents
Next
Next

Contact Info © 1999-2018 Syvum Technologies Inc. Privacy Policy Disclaimer and Copyright