General Science

GRAVITATION MCQs

Total Questions : 50

Page 1 of 5 pages
Question 1. The gravitational force between two spheres of masses 1000 kg kept 1m apart is
  1.    10 N
  2.    6.673 * 10-5
  3.    12 N
  4.    5 N
 Discuss Question
Answer is Option B. -> 6.673 * 10-5
Question 2. If the mass of earth is 6
  1.    7 ms-1
  2.    7 ms-2
  3.    7.3 ms-1
  4.    7.3 ms-2
 Discuss Question
Answer is Option D. -> 7.3 ms-2
Question 3. Value of g increases with the
  1.    decrease in altitude
  2.    increase in altitude
  3.    increase in body mass
  4.    decrease in body mass
 Discuss Question
Answer is Option A. -> decrease in altitude
Question 4. 2 lead spheres having a mass of 1000 kg each are placed with their centers 1 m apart
  1.    6.673 x105
  2.    66.73 x105
  3.    6673 x10-5
  4.    6.673 x10-5
 Discuss Question
Answer is Option D. -> 6.673 x10-5
Question 5. The gravitational force of attraction between satellite and earth provides
  1.    centripetal force
  2.    centrifugal force
  3.    resistive force
  4.    momentum force
 Discuss Question
Answer is Option A. -> centripetal force
Question 6. The moon completes one revolution around the Earth in
  1.    30 days
  2.    24 days
  3.    26 days
  4.    27.3 days
 Discuss Question
Answer is Option D. -> 27.3 days
Question 7. To move around the Earth, a satellite requires
  1.    centrifugal force
  2.    centripetal force
  3.    dynamic force
  4.    translatory force
 Discuss Question
Answer is Option B. -> centripetal force
Question 8. With mass ‘m’, altitude ‘h’, radius ro and velocity vo, the centripetal force is equal to
  1.    Fc =( mvo²) ⁄ ro
  2.    Fc =( mvo) ⁄ ro
  3.    Fc =( mro²) ⁄ vo
  4.    Fc =( mvo² + ro)
 Discuss Question
Answer is Option A. -> Fc =( mvo²) ⁄ ro
Question 9. The distance of moon from the Earth is
  1.    395,000 km
  2.    420,000 km
  3.    380,000 km
  4.    450,000 km
 Discuss Question
Answer is Option C. -> 380,000 km
Question 10. In SI units, the value of gravitational constant(G) is
  1.    6.673 x10-11
  2.    8.673 x105
  3.    6.673 x105
  4.    4.673 x105
 Discuss Question
Answer is Option A. -> 6.673 x10-11