Gravitation Quiz: Test Your Knowledge on Forces

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

What is the formula to calculate the gravitational force between two objects?

Which scientist proposed the law of universal gravitation?

What is the acceleration due to gravity at the surface of the Earth?

What is the direction of the gravitational force acting on an object in free fall?

What is the relationship between gravitational force and the mass of an object?

Gravitational Force and Distance

Doubling the distance between two objects decreases the gravitational force between them by a factor of four, according to the inverse square law.

Formula for Gravitational Force

The formula to calculate gravitational force (F) between two objects is given by:
[ F = G \frac{m_1 m_2}{r^2} ]
Where ( G ) is the gravitational constant, ( m_1 ) and ( m_2 ) are the masses of the objects, and ( r ) is the distance between their centers.

Law of Universal Gravitation

Sir Isaac Newton proposed the law of universal gravitation, which describes the gravitational attraction between masses.

Acceleration Due to Gravity

The acceleration due to gravity at the surface of the Earth is approximately ( 9.81 , m/s^2 ).

Direction of Gravitational Force in Free Fall

The gravitational force acting on an object in free fall directs downward toward the center of the Earth.

Relationship Between Gravitational Force and Mass

The gravitational force is directly proportional to the mass of the objects involved; as the mass of either object increases, the gravitational force between them increases.

Test your knowledge of gravitational force and the law of universal gravitation with this class 9 physics quiz. Learn about the formula to calculate gravitational force, the impact of distance on gravitational force, and the scientist behind the law of universal gravitation.