Four planets, Jupiter, Saturn, Uranus, and Neptune, have mass greater than that of the Earth.
The greater the mass, the greater the gravitational force.
No. The mass of the moon is a fraction of the earth's mass.
Earth
This is clearly related to its greater mass. The other giant planets also have several moons each.
Jupiter
Four in our solar system: Jupiter, Saturn, Uranus, and Neptune.
Quite simply, different planets have different masses. They are not all the same.
In our Solar System, Jupiter has approximately that mass. Many of the extrasolar planets discovered so far have similar masses as well.
gravitational pull depends on density and mass.
The greater the mass, the greater the gravitational force.
no No the greater the mass of any object the greater the gravitational field. Everything down to the finest speck of dust has a gravitational field.
Earth
No. The mass of the moon is a fraction of the earth's mass.
This is clearly related to its greater mass. The other giant planets also have several moons each.
All planets with more mass than earth have more gravity than it. So all of the gas giants have far more gravity than Earth.
Jupiter
Jupiter