🧲

Magnetism Basics

Jul 11, 2025

Overview

This lecture provides a simple explanation of how magnets work and the basic principles of magnetic fields and poles.

How Magnets Work

  • Magnets contain electrons that act like tiny magnets.
  • When electrons in a magnet are aligned in the same direction, they create a magnetic field.
  • The magnetic field allows magnets to interact with each other.

Magnetic Poles

  • The ends of a magnet are called the North and South Poles.
  • The magnetic field is strongest at the poles of the magnet.
  • The North Pole of one magnet attracts the South Pole of another magnet.
  • Like poles (North-North or South-South) repel each other.

Key Terms & Definitions

  • Magnetic Field — The invisible area around a magnet where magnetic forces are exerted.
  • Pole — One of the two ends of a magnet, called North and South, where the magnetic force is strongest.

Action Items / Next Steps

  • Review how electron alignment affects magnetism.
  • Practice identifying the poles of different magnets.