B. The force would get weaker because the distance got longer.
The force of gravity between two objects is inversely proportional to the square of the distance between their centers. So if the distance doubles, the force of gravity would decrease by a factor of four.
On average, the moon is 239,000 miles from Earth. If the moon were to move twice as far away (closer to 500,000 miles), what would happen to the force of gravity between the moon and Earth?
A.
The force would double in strength because the distance doubled.
B.
The force would get weaker because the distance got longer.
C.
The force would not change at all because their masses remain the same.
D.
The force between them would completely disappear because the distance is too far for gravity to have an effect.
1 answer
1 answer