Electromagnets

Front

What is an electromagnet?

Back

A temporary magnet made from current carrying wire around a magnetic metal core.

Front

What part of the atom is positively charged?

Back

Proton

Front

Do electromagnets require electricity to function?

Back

True

Front

What types of charges repel each other?

Back

Positive and Positive

Front

What is the role of a power source in an electromagnet?

Back

It provides the electric current needed to create the magnetic field.

Front

What happens to an electromagnet when the power is turned off?

Back

It loses its magnetism and becomes a non-magnetic material.

Front

Can electromagnets be turned on and off?

Back

Yes, by controlling the electric current.

Front

What materials are commonly used as cores in electromagnets?

Back

Iron, steel, or other ferromagnetic materials.

Front

How does increasing the current affect an electromagnet?

Back

It increases the strength of the magnetic field.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet maintains its magnetism, while an electromagnet's magnetism can be turned on and off.