Electrostatics Unit Review

What is the charge on an electron in coulombs (C)?

• -1.6 x 10^-19 C

• 1.6 x 10^-19 C

• -1 C

• 1 C

What particle can transfer between atoms/objects?

• Protons

• Neutrons

• Alpha Particles

• Electrons

How does an object become positively charged?

• By gaining protons

• By losing electrons

• By gaining electrons

• By losing protons

How many excess electrons does an object have if it has a charge of -8 x 10^-19 C?

• 3 electrons

• 5 electrons

• 8 electrons

• 2 electrons

Can a charge of 5.6 x 10^-19 C exist on an object? Why or why not?

• Yes, because this charge is a multiple of the elementary charge.

• No, because this charge is not a multiple of the elementary charge.

• Yes, because any amount of charge can exist on an object.

• No, because charges smaller than 1.6 x 10^-19 C cannot exist.

What does it mean for an object to be neutral in terms of electric charge?

• It has an equal number of protons and electrons.

• It has no protons or electrons.

• It has more protons than electrons.

• It has more electrons than protons.

What does the Law of Conservation of Charge state?

• Charge can be created but not destroyed.

• Charge can neither be created nor destroyed.

• Charge is always transferred from a positive to a negative object.

• Charge is always conserved in a closed system, but can be created in an open system.

When two conductors that are charged come into contact and then separated, what can you say about the charge on each object?

• Both objects become neutral.

• Both objects share the same magnitude of charge.

• One object takes all the charge, leaving the other neutral.

• The objects repel each other, so no charge is transferred.

What is the relationship between electrostatic force and the distance between two charged objects?

• directly proportional

• constant

• inverse square

• quadratic

The direction of the electric field is defined by the direction the electric force would point for what type of particle?

• A negatively charged particle.

• A positively charged particle.

• A neutral particle.

• It varies based on the problem.