Electricity and Magnetism-Unit Review

Front

What happens to the voltage in a parallel circuit?

Back

It remains the same across all branches.

Front

What is electrical current?

Back

Electrical current is the flow of moving electrons.

Front

What is a Parallel circuit?

Back

A parallel circuit has more than one path for current to flow.

Front

What does this symbol represent? (show symbol for switch)

Back

This symbol represents a switch.

Front

What causes an electric current in a wire?

Back

Electrons flow because of electrical attraction and repulsion.

Front

What is the unit of electrical current?

Back

The unit of electrical current is Amperes (A).

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law states that Voltage (V) = Current (I) x Resistance (R).

Front

What is a series circuit?

Back

A series circuit has only one path for current to flow.

Front

What is resistance in an electrical circuit?

Back

Resistance is the opposition to the flow of electric current, measured in Ohms.

Front

What is the role of a battery in a circuit?

Back

A battery provides the voltage needed to push electrons through the circuit.