draft for test tmr

Magnetism

the force that makes certain objects, like magnets, pull or push other objects, especially metals like iron

Magnetic poles

two ends of a magnet where the magnetic force is strongest — one is called the north pole, and the other is the south pole.

Magnetic North Pole of the earth

is the spot where a compass needle points — it’s where Earth’s magnetic field points straight down into the ground. It’s not the same as the North Pole on a map.

Magnetic compass

a tool with a needle that always points north, helping people know direction.

Permanent magnet

a magnet that keeps its magnetism all the time, like the magnets on a fridge.

Electromagnet

s a type of magnet that gets its magnetism from an electric current. When the current is turned off, it loses its magnetism.

4o mini

Magnetic field

the area around a magnet where its magnetic force can be felt. It can pull or push other magnets or magnetic materials within that space.

Generator

A device that converts mechanical energy into electrical energy using electromagnetic induction.

Electromagnetic

relating to the interaction of electric currents or fields and magnetic fields.

induction

the process by which a changing magnetic field creates an electric current in a conductor.

Magnetic domains

Regions within a material where the magnetic fields of atoms are aligned in the same direction.

Electric motor

a device that converts electrical energy into mechanical energy, making something move. It works by using a magnetic field to create force that causes a coil of wire to rotate.