Question

Fill in the blank.

Newton's law of gravitation states that gravitational force between two varies:

(1) ____________ as the product of their masses.

(2) ____________ as the square of distance between them.

• A. (1) directly proportional
• B. (2) indirectly proportional

Answer 1

The universal law of gravitation:

1. Every object in the universe attracts every other object with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them.
2. The force is along the line joining the centers of two objects.

Thus, Newton's law of gravitation states that gravitational force between two varies:

(1) Directly proportional as the product of their masses.

(2) Inversely proportional as the square of the distance between them.