Every body in the universe attracts every other body with a force that, for two bodies, is directly proportional to the product of their masses and inversely proportional to the square of the distance separating them:
Law of universal gravitation
Newton's law of universal gravitation states that the force of gravity depends on the product of the masses of the objects divided by the square of the distance between them.
A law relating the intensity of an effect to the inverse square of the distance from the cause.
The force that an object exerts on a supporting surface (or, if suspended, on a supporting string), which is often, but not always, due to the force of gravity.
Being without a support force, as in free fall.
High or low tides that occur when the Sun, Earth, and the Moon are all lined up so that the tides due to the Sun and the Moon coincide, making the high tides higher than average and the low tides lower than average.