The property of magnetism was first discovered in antiquity through ______.

The force of magnetism is called _________.

The earth geographic north pole is the earth's _________.

The compass needle aligns with the Earth's _____ direction.

Materials that composed of irons cobalt, nickel, aluminum, and copper could be used to make _______.

Magnetic field are also created by ______.

The strength of magnetic field around a conductor is determined by the amount of ________.

Two parallel current carrying conductors attract each other if the currents in the conductors are in the _______.

Forming a _____ out of a conductor creates an electromagnet.

The opposition to magnetic flux is called ________.

The effort in creating a magnetic field is called _______.