Electric Charge & Coulomb's Law

Front

What is the unit of electric charge?

Back

Coulomb (C)

Front

If the charges in a system are doubled, how does the electrostatic force change?

Back

The force quadruples.

Front

What happens to the force between two charges if one charge is doubled?

Back

The force doubles.

Front

What is the relationship between electrostatic force and the distance between charges?

Back

The force is inversely proportional to the square of the distance between the charges.

Front

What happens to the force if both charges are doubled?

Back

The force quadruples.

Front

If a 2-C charge and a 4-C charge exert a force of 10 N, what force do a 2-C charge and an 8-C charge exert at the same distance?

Back

20 N.

Front

What does Coulomb's Law state about the force between two point charges?

Back

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 type of charge does an atom have after losing an electron?

Back

Positive charge.

Front

What is the formula for calculating the electrostatic force between two charges?

Back

F = k * (|q1 * q2| / r^2), where k is Coulomb's constant.

Front

What does it mean for electrostatic force to be directly proportional to the charges involved?

Back

If one or both charges increase, the force increases.