Circuits & Magnetism Unit Review

Front

What generates magnetism?

Back

Magnetism is generated by moving electrons.

Front

What happens to certain materials in a magnetic field? Give an example.

Back

Certain materials respond to magnetic fields by becoming magnetic themselves. Iron is one of these materials.

Front

How do you calculate the total current in a circuit?

Back

The total current through a circuit can be measured in amps.

Front

How do you calculate the total resistance in a series circuit?

Back

Total resistance in a series circuit is calculated by R1 + R2 + R3.

Front

What is the mathematical relationship among Voltage, Current, and Resistance?

Back

Ohm's Law describes the relationship among Voltage, Current, and Resistance.

Front

What is the unit of current?

Back

The unit of current is the ampere (amps).

Front

What is the role of a resistor in a circuit?

Back

A resistor limits the flow of electric current in a circuit.

Front

What is a parallel circuit?

Back

A parallel circuit is a circuit where components are connected across common points, providing multiple paths for current.

Front

What is the effect of adding more resistors in series?

Back

Adding more resistors in series increases the total resistance.

Front

What is the effect of adding more resistors in parallel?

Back

Adding more resistors in parallel decreases the total resistance.