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Multimedia: Electricity and Magnetism

Multimedia: Electricity and Magnetism. Ivan S Ruddock Department of Physics University of Strathclyde, Glasgow G4 0NG i.s.ruddock@strath.ac.uk. Introduction.

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Multimedia: Electricity and Magnetism

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  1. Multimedia: Electricity and Magnetism Ivan S Ruddock Department of Physics University of Strathclyde, Glasgow G4 0NG i.s.ruddock@strath.ac.uk

  2. 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

  3. 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

  4. Observations • The best multi-media may come from the least expected sources EUPEN General Forum, Poiana Brasov, September 2008

  5. University of Strathclyde: First year E&M – magnetic force EUPEN General Forum, Poiana Brasov, September 2008

  6. University of Strathclyde: First year E&M – magnetic force EUPEN General Forum, Poiana Brasov, September 2008

  7. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  8. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  9. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  10. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  11. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  12. (217) Magnetic force F = q(v x B)in 2Dhttp://lectureonline.cl.msu.edu/~mmp/kap21/cd533capp.htm EUPEN General Forum, Poiana Brasov, September 2008

  13. (186) Lorentz force: F = q(E + v x B) in 3Dhttp://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChgEleMagApplet.html Surendranath Reddy EUPEN General Forum, Poiana Brasov, September 2008

  14. (186) Lorentz force: F = q(E + v x B) in 3Dhttp://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChgEleMagApplet.html EUPEN General Forum, Poiana Brasov, September 2008

  15. (186) Lorentz force: F = q(E + v x B) in 3Dhttp://surendranath.tripod.com/Applets/Electricity/MovChgEleMag/MovChgEleMagApplet.html EUPEN General Forum, Poiana Brasov, September 2008

  16. 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 (1863D 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 (2172D Lorentz force or 138 solenoid) EUPEN General Forum, Poiana Brasov, September 2008

  17. University of Strathclyde: First year E&M – magnetic field inside solenoid EUPEN General Forum, Poiana Brasov, September 2008

  18. University of Strathclyde: First year E&M – magnetic field inside solenoid EUPEN General Forum, Poiana Brasov, September 2008

  19. (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/Magnetism001.htm EUPEN General Forum, Poiana Brasov, September 2008

  20. (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/Magnetism001.htm EUPEN General Forum, Poiana Brasov, September 2008

  21. (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/Magnetism001.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

  22. (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/Magnetism001.htm EUPEN General Forum, Poiana Brasov, September 2008

  23. (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/Magnetism001.htm EUPEN General Forum, Poiana Brasov, September 2008

  24. (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/Magnetism001.htm EUPEN General Forum, Poiana Brasov, September 2008

  25. 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 (1863D 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 (2172D Lorentz force or 138 solenoid) • Also need to check that the physics is correct! EUPEN General Forum, Poiana Brasov, September 2008

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