Universal Law of gravitation

Front

What is the Universal Law of Gravitation?

Back

The Universal Law of Gravitation states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

Front

What does it mean that the force of gravity is inversely proportional to distance?

Back

It means that as the distance between two objects increases, the gravitational force between them decreases. Specifically, if the distance is doubled, the gravitational force becomes one-fourth as strong.

Front

If the mass of an object increases, what happens to the gravitational force it exerts?

Back

The gravitational force increases. According to the Universal Law of Gravitation, force is directly proportional to mass.

Front

How does the gravitational force change if the distance between two objects is halved?

Back

The gravitational force increases by a factor of four, since force is inversely proportional to the square of the distance.

Front

What happens to your mass if the gravitational force acting on you changes?

Back

Your mass remains the same; mass is a measure of the amount of matter in an object and does not change with gravitational force.

Front

What is the formula for calculating gravitational force?

Back

F = G * (m1 * m2) / r^2, where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the objects, and r is the distance between their centers.

Front

What is the gravitational constant (G)?

Back

The gravitational constant (G) is a key quantity in the law of universal gravitation, approximately equal to 6.674 × 10^-11 N(m/kg)^2.

Front

If two objects are 3 meters apart and exert a gravitational force of 36 N, what will the force be if the distance is increased to 6 meters?

Back

The force will decrease to 9 N, as gravitational force is inversely proportional to the square of the distance.

Front

How does the gravitational force between Earth and the Moon change if the Moon's mass is doubled?

Back

The gravitational pull will double, as gravitational force is directly proportional to the masses involved.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object (measured in kg), while weight is the force exerted by gravity on that mass (measured in Newtons). Weight can change with the strength of the gravitational field.