Describe how mass and distance affect gravitational force?
2 answers:
Explanation:
The Newton's law of gravitation gives the force acting between two bodies when they are separated by some distance. Mathematically, it is given by :
It shows that the gravitational force is directly proportional to the product of masses of two bodies and inversely proportional to the square of distance between them.
So, as the mass of bodies increases, the gravitational force increases and with the increase of distance between them, the gravitational force decreases.
You might be interested in
1. C. Gravitational attraction exists between the two objects.
Explanation:
Gravitational attraction is always exerted between two objects which have mass, and its magnitude is given by:
where G is the gravitational constant, m1 and m2 the masses of the two objects, and r the separation between them. Since the two objects have for sure non-zero masses m1 and m2, even if they are 20 miles apart, the value of the gravitational attraction F is non-zero, so the correct answer is C.
2. D. Two atoms come together to form a molecule.
Explanation:
this outcome is actually caused by the electrostatic forces between the two atoms, not by gravitational force. In fact, gravitational force becomes relevant only when the masses of the two objects involved are large enough: this is the case for planets, stars, galaxies, and objects in the universe. However, two atoms have very small masses, so the gravitational force between them is really negligible. On this smaller scales, the electrostatic force is much stronger than the gravitational force, so the electrostatic force is the real responsible for the formation of bonds between atoms.