physics reviewer for my baby.

Which of the following statements is true about electric charges?

• Electric charges do not affect each other.

• Electric charges exist only in metals.

• Like charges repel and opposite charges attract.

• Electric charges can be created or destroyed.

What is the net electric charge of an atom?

• Positive

• Negative

• Neutral

• Lacking

How is an electric field produced?

• By the motion of nonelectric charges.

• By the motion of magnetic charges.

• By the motion of electric charges.

• By the motion of both electric and magnetic charges.

What is the SI unit of electric charge?

• Watt

• Newton

• Coulomb

• Joule

Which of the following is an example of an insulator?

• Glass

• Copper

• Aluminum

• Silver

What happens when two positively charged objects are brought near each other?

• Repel each other.

• Nothing happens.

• Attract each other.

• Cancel each other out.

What is the relationship between electric force and distance?

• The force decreases as the distance increases.

• The force is inversely related to the distance squared.

• The force is not affected by the distance.

• The force increases as the distance decreases.

What is the difference between conductors and insulators?

• Conductors and insulators do not affect the flow of electric charges.

• Conductors and insulators are the same thing.

• Conductors allow electric charges to flow easily, while insulators do not.

• Insulator allow electric charges to flow easily, while conductors do not.

What happens to the electric force between two charges if the distance between them is doubled?

• It increases by a factor of 2.

• It decreases by a factor of 2.

• It increases by a factor of 4.

• It decreases by a factor of 4.

What is the relationship between electric potential and electric potential energy?

• They are the same thing.

• Electric potential is the rate at which electric potential energy changes.

• Electric potential and electric potential energy are not related.

• Electric potential energy is the rate at which electric potential changes