Class IX

The mass of the body on moon is 40kg, what is the weight on the earth
  1. . 240kg
  2. . 392N
  3. . 240N
  4. 400kg
What is the gravitational force between two objects?
  1. . attractive at large distances only
  2. . attractive at small distances only
  3. attractive at all distances
  4. attractive at large distances but repulsive at small distances
. The gravitational force causes
  1. . Tides
  2. . Motion of moon
  3. . None of them
  4. . Both a n b
The gravitational force causes
  1. Tides
  2. Motion of moon
  3. none of them
  4. both a and b
The Earth attracts the moon with a gravitational force of 1020N. The moon attracts the earth with a gravitational force of
  1. Less than 1020N
  2. 1020N
  3. Greater than 1020N
  4. 10-20N
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