Gravitation and Electrostatics

Front

What is the law of universal gravitation?

Back

The law of universal 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 happens to gravitational force if the distance between two masses is halved?

Back

The gravitational force increases by a factor of four (4x) because it is inversely proportional to the square of the distance.

Front

What is Coulomb's law?

Back

Coulomb's law describes the force between two charged objects, stating that the force is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

Front

What happens to the electric force of repulsion if the distance between two like charges is increased?

Back

The electric force of repulsion decreases.

Front

If two objects have the same mass, how does the gravitational force change if one object is moved twice as far away?

Back

The gravitational force becomes one-fourth (1/4) of its original value.

Front

What is the relationship between mass and gravitational force?

Back

Gravitational force is directly proportional to the product of the masses involved.

Front

What is the effect of doubling the mass of one object on the gravitational force between two objects?

Back

The gravitational force doubles.

Front

What happens to the gravitational force if both masses are doubled?

Back

The gravitational force increases by a factor of four (4x).

Front

What is the gravitational force exerted by the Earth on an object at a distance of 2R from the center of the Earth, if the force at distance R is F?

Back

The gravitational force is F/4.

Front

What is the principle of superposition in electrostatics?

Back

The principle of superposition states that the total electric force acting on a charge due to multiple other charges is the vector sum of the individual forces exerted by each charge.