Electricity and Magnetism

Front

Why are electrical cords covered in plastic or rubber?

Back

Because plastic and rubber are insulators which keeps us safe.

Front

What does Ohm’s law state?

Back

V = I x R, where V is voltage, I is current, and R is resistance.

Front

Where is the strongest attraction force of a magnet?

Back

At the poles.

Front

What happens to a series circuit when one bulb is removed?

Back

The rest of the lights will go out.

Front

How do you complete an incomplete circuit?

Back

A wire should be placed from Point A to Point D.

Front

What is an insulator?

Back

A material that does not allow electricity to flow through it easily.

Front

What is a conductor?

Back

A material that allows electricity to flow through it easily.

Front

Define voltage.

Back

Voltage is the electric potential difference between two points.

Front

What is current?

Back

Current is the flow of electric charge, measured in amperes (A).

Front

What is resistance?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω).