Magnetism quiz

Electric Motor → A device that converts electrical energy to mechanical energy by using the magnetic forces

between an electromagnet and a permanent magnet to make a shaft rotate.

Electromagnet → Temporary magnet created when there is a current in a wire coil.

Electromagnetic Force → The attractive or repulsive force between electric charges and magnets.

Electromagnetic Induction → Process by which electric current is produced in a wire loop by a changing

magnetic field.

Electromagnetism → The interaction between electric charges and magnets.

Faraday’s Law → In general, an electric field is induced in any region of space in which a magnetic field is

changing with time. The magnitude of the induced electric field is proportional to the rate at which the magnetic

field changes.

Galvanometer → A device that uses an electromagnet to measure electric current.

Generator → A device that uses electromagnetic induction to convert mechanical energy to electrical energy.

Magnetic Domain → A group of atoms in a magnetic material in which the magnetic poles of the atoms are

aligned in the same direction.

Magnetic Field → A region surrounding a magnet that exerts a force on other magnets and objects made of

magnetic materials.

Magnetic Pole → A region on a magnet where the magnetic force exerted by a magnet is strongest; like poles

repel and opposite poles attract.

Magnetism → The properties and interactions of magnets.

Solenoid → A cylindrical coil of wire, used to produce a magnetic field when an electrical current passes

through the wire.

Transformer → A device that uses electromagnetic induction to increase or decrease the voltage of an

alternating current.

Turbine → A large wheel that rotates when pushed by steam, wind, or water and provides mechanical energy

to a generator.