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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