1 / 2

Magnetism

Magnetism. Natural magnets Discovered in China (1300 B.C., Greece (800 B.C.) Rocks called ‘Lodestone’ (an iron-oxide) could attract iron . Magnet Basics North Pole and South Pole No magnetic monopole Opposite poles attract, like repel Magnetic Force Field Force (like gravity, electric)

duman
Download Presentation

Magnetism

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Magnetism • Natural magnets • Discovered in China (1300 B.C., Greece (800 B.C.) • Rocks called ‘Lodestone’ (an iron-oxide) could attract iron. • Magnet Basics • North Pole and South Pole • No magnetic monopole • Opposite poles attract, like repel • Magnetic Force • Field Force (like gravity, electric) • Weakens with distance • Dependent on Charge, Speed of Charge, Direction of Charge

  2. Magnetism • The Earth as a Magnet • Due to iron in its core, earth functions as a giant magnet • South Magnetic Pole aligns roughly with North Geographic Pole • Ferromagnetic Materials • Magnets attracted to:Iron, Cobalt, Nickel, iron alloys • Magnets not attracted to:Wood, Plastic, most non-metals • Compasses • A permanent magnet • Affected by magnetic fields… like the one around the earth

More Related