Electrostatics Quiz Review

What is the study of electric charges that can be collected and held in one place called?

• Electrostatics

• Plasma

• Conductivity

• Insulation

What happens when two objects with like charges are brought close to each other?

• They attract each other

• They repel each other

• They become neutral

• They create a spark

What is the overall charge of a neutral object?

• Positive

• Negative

• No charge

• It depends on the material

How does an object become positively charged?

• By gaining electrons

• By losing electrons

• By gaining protons

• By losing protons

What is a material that allows charges to move about easily called?

• Insulator

• Conductor

• Plasma

• Neutralizer

Why are metals good conductors?

• They have a high density

• They have a high melting point

• They have free-moving electrons

• They have a high positive charge

What happens when excess charges in a cloud and on the ground are great enough to remove electrons from the molecules in the air?

• a) Lightning discharges the cloud

• b) The cloud becomes positively charged

• c) The ground becomes negatively charged

• d) The air becomes an insulator

Which statement correctly describes the electrostatic force?

• a) It is the force that attracts opposite charges and repels like charges

• b) It is the force that attracts like charges and repels opposite charges

• c) It is the force that attracts all charges

• d) It is the force that repels all charges

What is the best description of most metals?

• a) Good insulators

• b) Good conductors

• c) Neutral materials

• d) Plasma materials

What is the purpose of an electroscope?

• a) To determine the direction of electric current

• b) To measure the strength of an electric field

• c) To detect and determine the type of electric charge

• d) To generate static electricity