Electricity Review

Front

In order for electricity to flow you need_________?

Back

closed circuit

Front

In a wire with a current, electrons move randomly and _____________.

Back

in one direction

Front

What do we call the flow of electricity around a circuit?

Back

electric current

Front

A material that allows heat or electricity to flow through it is a ______________?

Back

conductor

Front

Material that does not allow heat or electricity to flow through is a _____________________.

Back

insulator

Front

What is the unit of electric current?

Back

Ampere (A)

Front

What is the source of electrical energy in a circuit?

Back

Battery

Front

What is the role of a resistor in a circuit?

Back

To limit the flow of electric current.

Front

What is the difference between a series circuit and a parallel circuit?

Back

In a series circuit, components are connected end-to-end; in a parallel circuit, components are connected across common points.

Front

What is Ohm's Law?

Back

V = I × R (Voltage = Current × Resistance)