20.2 Electric Current And Ohm'S Law
Question: What is electric current?
Answer: electric current is a continuous flow of charge (or electrons)
Question: What is an example of a direct current charge?
Answer: flashlight
Question: What is an example of an alternating current charge?
Answer: home or school
Question: How does direct current charge flow?
Answer: in one direction
Question: How does alternating current charge flow?
Answer: in 2 directions
Question: Electrons flow in the wire from a _____________ terminal to a ____________ terminal.
Answer: negative to positive
Question: What is an electrical conductor?
Answer: an electrical conductor is material through which charge can easily flow
Question: What is an electrical insulator?
Answer: an electrical insulator is material through which charge cannot easily flow
Question: Is the following sentence true or false? Metals are good conductors because they do not have freely moving electrons
Answer: false
Question: Is copper a conductor or insulator?
Answer: conductor