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Download Multimedia: Electricity and Magnetism
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Multimedia: Electricity and Magnetism Ivan S Ruddock Department of Physics University of Strathclyde, Glasgow G4 0NG [email protected] Introduction Multimedia selected from Proc. 11th European Workshop on Multimedia in Physics Teaching and Learning (MPTL XI) Szeged, Hungary, September 2006 Criteria for selecting these multimedia examples from the list: Topic that cannot be illustrated by conventional means – obviously 3D such as magnetic effects. Ignored those that are intrinsically 2D phenomena – electrostatics, circuits and circuit components etc. Ignored commercial adjuncts for textbooks. Charge moving in a magnetic field and/or electric field (186/217/126) Magnetic field inside a solenoid (138) EUPEN General Forum, Poiana Brasov, September 2008 Inspiration Pioneer of using models for teaching undergraduate physics: “If I cannot make a model of it, I cannot understand it” Lord Kelvin, 1824 – 1907 Professor of Natural Philosophy, Glasgow, 1846 –99 Sir William Thomson, 1866 Baron Kelvin of Largs, 1892 William Thomson, 1846 (aged 22) EUPEN General Forum, Poiana Brasov, September 2008 Observations The best multi-media may come from the least expected sources EUPEN General Forum, Poiana Brasov, September 2008 University of Strathclyde: First year E&M – magnetic force EUPEN General Forum, Poiana Brasov, September 2008 University of Strathclyde: First year E&M – magnetic force EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (217) Magnetic force F = q(v x B) in 2D http://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008 (186) Lorentz force: F = q(E + v x B) in 3D http://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChg EleMagApplet.html Surendranath Reddy EUPEN General Forum, Poiana Brasov, September 2008 (186) Lorentz force: F = q(E + v x B) in 3D http://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChg EleMagApplet.html EUPEN General Forum, Poiana Brasov, September 2008 (186) Lorentz force: F = q(E + v x B) in 3D http://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChg EleMagApplet.html EUPEN General Forum, Poiana Brasov, September 2008 Observations The best multi-media may come from the least expected sources Dedicated departmental server required in some cases as multimedia may be part of a large suite of applications Many titles available on-line – BUT – few appear to be available for immediate download internet access required in the lecture theatre Applets cannot easily be imbedded into PowerPoint, use ‘LiveWeb’ http://skp.mvps.org/liveweb.htm Need to distinguish between sophisticated applets of interest to the lecturer (186 3D Lorentz force) for use as a teaching aid during lectures, and simple illustrations that add little to a diagram but are suitable for private study by students (217 2D Lorentz force or 138 solenoid) EUPEN General Forum, Poiana Brasov, September 2008 University of Strathclyde: First year E&M – magnetic field inside solenoid EUPEN General Forum, Poiana Brasov, September 2008 University of Strathclyde: First year E&M – magnetic field inside solenoid EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm Applet accompanied by exercises seeking observations but there is no explanation of why the field changes as the number of turns increases or their spacing changes EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm EUPEN General Forum, Poiana Brasov, September 2008 (138) Magnetic field in a solenoid: example that adds little to a basic diagram or a good aid for private study? http://www.nhn.ou.edu/~walkup/demonstrations/WebAssignments/Magneti sm001.htm EUPEN General Forum, Poiana Brasov, September 2008 Observations The best multi-media may come from the least expected sources Dedicated departmental server required in some cases as multimedia may be part of a large suite of applications Many titles available on-line – BUT – few appear to be available for immediate download internet access required in the lecture theatre Applets cannot easily be imbedded into PowerPoint, use ‘LiveWeb’ http://skp.mvps.org/liveweb.htm Need to distinguish between sophisticated applets of interest to the lecturer (186 3D Lorentz force) for use as a teaching aid during lectures, and simple illustrations that add little to a diagram but are suitable for private study by students (217 2D Lorentz force or 138 solenoid) Also need to check that the physics is correct! EUPEN General Forum, Poiana Brasov, September 2008