Universal Law of gravitation & Free Fall

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

Who formulated the Universal Law of Gravitation?

Back

Sir Isaac Newton.

Front

What happens to the gravitational force between two objects if the distance between them is tripled?

Back

The gravitational force becomes one-ninth (F/9) of the original force.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.8 m/s².

Front

What is the velocity of an object at the highest point of its trajectory when thrown upwards?

Back

0 m/s.

Front

In a vacuum, do all objects fall at the same rate regardless of their mass?

Back

Yes, in a vacuum, a feather and a stone fall at the same rate and reach the ground at the same time.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.

Front

True or False: Gravity only affects large objects like planets and stars.

Back

False. Gravity affects all objects with mass.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force increases with the increase in mass of the objects.