History of Magnetism The term magnetism stems from a rocks found in the region of Magnesia, Greece called lodestones. 3. Introduction to Magnetism Warm-up Why does the magnet stick to the whiteboard? Oxford University Press, 2012. This attracting property is either natural, as in the case of lodestone, or induced (formed by unnatural means). Electricity E(x,t) and magnetism B(x,t) ... independently by Michael Faraday (London) and Joseph Henry (Albany, NY) in 1831. Students should already have an understanding of non contact forces and magnetic repulsion/attraction from KS3. World's Best PowerPoint Templates - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. What is 74'Lag.neLZa.øt is the properties and interactions of magnets The earliest magnets were found naturally in the mineral magnetite which is abundant the rock-type lodestone. Two lessons in one powerpoint. Created: Jan 29, 2012 | Updated: Dec 10, 2012. Introduction to Magnetism. Magnets are solid objects of stone, metal, or other material, which have the property of attracting iron-containing materials. A short ppt on Magnetism. L1 Introduction to magnetism. Useful for revision or a two hour lesson. I poHa(T) 1 0.06 1 0.76 1 0.03 1 1.8 1 40 1 7.6 Table A.3 Extrinsic properties of some bulk magnets.,L , 3.6 77 4.9 764 S (nm) (m~lrn') lex (nm) Rsd (nm) Cobalt steel … Magnetism: A Very Short Introduction by Stephen Blundell. L3 EM practical. Magnetic Materials Table A.2 Intrinsic and micromagnetic properties of some magnetic materials. Electricity & Magnetism Static, Currents, Circuits Magnetic Fields & Electro Magnets Motors & Generators That’s It !!!! Here, field lines & attraction/repulsion will be directly recapped. ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: ac648-NWIyY 1. Winner of the Standing Ovation Award for “Best PowerPoint Templates” from Presentations Magazine. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. “Models in magnetism: from basics aspects to practical use” Timisoara september 2009 Introduction. L2 Compasses. This lesson will directly lead into the next lesson on compasses. Magnetism Powerpoint. A condensed (142-page) overview that takes us from early ideas of Earth's magnetism to quantum theory, relativity, and more. 4.7 23 customer reviews. Covers magnetic materials, domains, attraction an repulsion, magnetic fields, compasses and how to make a compass. Atoms… Have neutrons, protons, and electrons. Preview. These magnets were used by the ancient peoples as compasses to guide sailing vessels. The Man Who Changed Everything by Basil Mahon, John Wiley, 2003. In the 1100’s, the Chinese used magnets to help navigate their ships and created the first compasses. Lecture 2 Part 1. 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