Download presentation
Presentation is loading. Please wait.
Published byGarry Knight Modified over 9 years ago
1
Magnets and Magnetism Chapter 6 Section 1
2
Vocab Magnet- any material that attracts iron or materials containing iron. Magnetic Pole- one of two points, such as the ends of a magnet, that have opposing magnetic qualities. Magnetic force- the force of attraction or repulsion generated by moving or spinning electric charges.
3
All magnets have two poles. The north pole will always point to the north if allowed to rotate freely. The other pole is the south pole. Like magnetic poles repel each other- opposite magnetic poles attract. Every magnet is surrounded by a magnetic field. A material is magnetic if its domains line up.
4
Magnets can be classified as ferromagnets, electromagnets, temporary magnets, and permanent magnets. Ferromagnets- naturally occurring Electromagnets- magnet created using electric current Temporary magnets- easy to magnetize and easy to demagnetize Permanent magnets- hard to magnetize but once magnetized, they will stay magnetized for a long time.
5
Earth acts as if it has a big bar magnet through its core. Compass needles and the north poles of magnets point to Earth’s magnetic south pole, which is near the Earth’s geographic north pole. Auroras are most commonly seen near Earth’s magnetic poles because Earth’s magnetic field bends inward at the poles.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.