P2 and P3 Electricity Magnets Review

Front

What controls the flow of energy in an electric circuit?

Back

Switch

Front

What happens when you place a thick piece of paper between a magnet and a refrigerator?

Back

The magnet may not stick if the paper is too thick because the magnetic field cannot pass through it.

Front

What is a permanent magnet?

Back

A magnet that always produces a magnetic field and cannot be turned off.

Front

What is an electromagnet?

Back

A type of magnet that can be turned on and off by controlling the electric current.

Front

How can you increase the strength of an electromagnet?

Back

By increasing the amount of electric current flowing through it or by adding more coils of wire.

Front

What is the difference between permanent magnets and electromagnets?

Back

Permanent magnets always produce a magnetic field, while electromagnets can be turned on and off.

Front

What is the purpose of a switch in an electric circuit?

Back

To control the flow of electricity by opening or closing the circuit.

Front

What happens when you connect two batteries in series?

Back

The voltage increases, which can make a lightbulb brighter.

Front

What is the role of wires in an electric circuit?

Back

Wires conduct electricity from one component to another.

Front

What is a load in an electric circuit?

Back

A device that uses electricity to perform work, such as a lightbulb or motor.