General Physics 2| 3rd Quarter Reviewer

If the distance between two identical charges is tripled, how does the electrostatic force between them change?

• 1/9 of the original force.

• 1/3 of the original force.

• 9 times the original force.

• 3 times the original force.

If the charge on a dust particle is doubled, how does the force between the particle and the collecting plate change?

• It halves.

• It doubles.

• It quadruples.

• It remains the same.

What is the direction of the force acting on q1?

• toward q2.

• away from q2.

• there is no force.

• perpendicular to the line joining q1 and q2

If the electron is replaced with a particle of the same charge but twice the mass, how does the electrostatic force between the nucleus and the particle change?

• It halves.

• It doubles.

• It quadruples.

• It remains the same

If the distance between two protons is reduced to one-third of its original value, how does the force between them change?

• 1/9 of the original force

• 1/3 of the original force

• 9 times the original force

• 3 times the original force

If the charge on one particle is tripled and the distance between the particles is doubled, how does the force between them change?

• 3/4 of the original force.

• 3/2 of the original force.

• 9/4 of the original force.

• 9/2 of the original force.

If the charge on one particle is doubled and the distance between the particles is halved, how does the force between them change?

• It doubles.

• It quadruples.

• It remains the same

• It increases by a factor of 8.

What is the magnitude of each charge if two identical charges are placed 4 meters apart, and the force between them is 9 N?

• 2 μC

• 4 μC

• 6 μC

• 8 μC

If the resistance of a circuit is doubled while the voltage remains constant, what happens to the current?

• It halves.

• It doubles.

• It quadruples.

• It remains the same.

Which of the following graphs best represents the relationship between voltage and current for a resistor obeying Ohm's Law?

• curved line

• vertical line

• horizontal line

• straight line passing through the origin