Learning objectives

(a) state properties of magnets

(b) describe induced magnetism

(c) distinguish between magnetic and non-magnetic materials

(d) describe electrical methods of magnetization and demagnetization

(e) describe the plotting of magnetic field lines with a compass

(f) draw the magnetic pattern around a bar magnet and between the poles of two bar magnets

(g) distinguish between the magnetic properties and uses of temporary magnets (e.g. iron) and permanent magnets (e.g. steel)

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Watch the following video for an introduction to magnetism.





You may explore the following websites to learn more about magnetism.
http://vle.hci.edu.sg/physics/GCSE%20Absorb%20Physics/units/DJFPh052.html
http://www.ylearn.co.uk/ Access Code : Magnetism
http://vle.hci.edu.sg/physics/WebTeach/4d-Magnetism/Siew%20Hoon/magnet.htm
http://www.ndt-ed.org/EducationResources/HighSchool/Magnetism/hs_mag_index.htm

Magnetic field around magnets
http://www.walter-fendt.de/ph14e/mfbar.htm
http://www.magnet.fsu.edu/education/tutorials/slideshows/fieldlines/index.html


Magnetic domains
http://www.magnet.fsu.edu/education/tutorials/java/domains/index.html


Animals and Magnetic field



Find out about animals making use of magnetic field to migrate and find their way from the following websites.
http://www.pbs.org/wgbh/nova/magnetic/animals.html
http://news.nationalgeographic.com/news/2001/10/1012_TVanimalnavigation.html
http://videos.howstuffworks.com/hsw/11957-magnetism-how-magnetism-guides-animal-migration-video.htm
http://www.sciencedaily.com/releases/2010/01/100127110423.htm

Other interesting applications of magnetism
New drug delivery system uses magnetism
http://news.cnet.com/8301-27083_3-10356754-247.html

Magnetic Therapy
http://science.discovery.com/video/skepticalinquirer/magnettherapy.html

Superconductors


Games developer use concepts of magnetism to create games.





Suggested ACE activities
Create a toy/game/online game that involves the use of properties of magnets.