Physics Unit 5 Flashcard 3

Front

A protective device called a _____ has a conductor that burns through if a circuit is overloaded.

Back

fuse

Front

Certain _____ are better conductors than others.

Back

metals

Front

If too many appliances are attached to one electric circuit you risk overloading the circuit due to _____.

Back

excess current

Front

If the switch in an electrical circuit is turned ON in an electric train's circuit, the circuit is _____ and the charges are running through the circuit.

Back

closed

Front

A material that resists an electric current from passing through it is a(n) _____.

Back

insulator

Front

The amount of power delivered by a circuit carrying one ampere of current with a one-volt difference in one second is measured in watts and is called _____.

Back

electric power

Front

A conductor has low _____ while an insulator has high resistance.

Back

resistance

Front

The rate at which electric _____ move through a conductor is the current.

Back

charges

Front

What is the name for the derived SI unit of electric potential, equivalent to 1 joule of energy per coulomb of charge (J/C)?

Back

volt

Front

Just as electric charges, opposite poles in magnets _____ each other.

Back

attract