Gravitational and Gravity MCQ

Test your knowledge with important Gravitational and Gravity MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Gravitational and Gravity MCQs at Bissoy

• A satellite orbiting the earth with speed v0. To make the satellite escape, what should be the minimum percentage increase in its velocity?
  ক

  41.5%

  খ

  44.1%

  গ

  41.4%

  ঘ

  40%
• A satellite does not need ant fuel to circle around the earth.
  ক

  True

  খ

  False
• It is possible to place an artificial satellite in an orbit, such that it is always visible over New Delhi.
  ক

  True

  খ

  False
• An astronaut, while revolving in a circular orbit happens to throw a spoon outside. What will happen to the spoon?
  ক

  It will reach the earth surface

  খ

  It will escape the universe

  গ

  It will remain stationary

  ঘ

  It will continue to move in a circular orbit
• An elephant and an ant are to be projected out of the earth into space. What is the velocity needed to do so?
  ক

  Elephant needs to be projected with a higher velocity

  খ

  Ant should be projected with a higher velocity

  গ

  Both should be projected with the same velocity

  ঘ

  Elephant cannot be projected to space
• If gravitational constant is decreasing with time, what will remain unchanged in case of a satellite orbiting around the earth?
  ক

  Time period

  খ

  Orbiting radius

  গ

  Areal velocity

  ঘ

  Angular velocity
• The value of escape velocity on a certain planet is 2km/s. Then the value of orbital speed for a satellite orbiting close to its surface is ___________
  ক

  12km/s

  খ

  1km/s

  গ

  √2km/s

  ঘ

  2√2km/s
• A satellite revolves very near to the earth surface. Its speed should be around?
  ক

  5km/s

  খ

  8km/s

  গ

  2km/s

  ঘ

  11km/s
• If the earth stops rotating, the value of g at the equator ___________
  ক

  Increases

  খ

  Decreases

  গ

  No effect

  ঘ

  First increases and then decreases
• Statement 1 – The length of the day is slowly increasing. Statement 2 – The dominant effect causing a slow down in the rotation of the earth is the gravitational pull of other planets in the solar system.
  ক

  Statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1

  খ

  Statement 1 and statement 2 are correct but statement 2 is not the correct explanation of statement 1

  গ

  Statement 1 is true but statement 2 is false

  ঘ

  Both statement 1 and 2 are false