The formula for calculating gravitational force is F = (G * m1 * m2) / r^2, where G is the universal gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between them.
The greater the mass of an object, the greater its gravitational force. This is because the more mass an object has, the more it pulls on other objects due to its larger gravitational pull.
The farther apart two objects are, the weaker their gravitational force. This is because the force of gravity decreases as the distance between objects increases.
No, gravitational force is always a positive value. It is a force of attraction between two objects, so it cannot be negative.
The gravitational force between a ball and a particle will depend on their masses and the distance between them. However, the force will be significantly greater for the ball due to its larger mass compared to the particle.