Difference between revisions of "4-ELM-01"
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* '''recall the four ways of increasing the power of an electromagnet''' | * '''recall the four ways of increasing the power of an electromagnet''' | ||
* '''learn that there is magnetic field around a current carrying wire''' | * '''learn that there is magnetic field around a current carrying wire''' | ||
− | * '''explain how | + | * '''explain how the electric bell and different relays work''' |
==[[Specifications|Specification]] References== | ==[[Specifications|Specification]] References== |
Revision as of 09:12, 24 February 2010
Contents
Outcomes
- recall what a electromagnet is and how you can build one
- recall the four ways of increasing the power of an electromagnet
- learn that there is magnetic field around a current carrying wire
- explain how the electric bell and different relays work
Specification References
- 6.11 appreciate that there is a force on a charged particle when it moves in a magnetic field as long as its motion is not parallel to the field
- 6.12 recall that a force is exerted on a current-carrying wire in a magnetic field, and how this effect is applied in simple d.c.electric motors and loudspeakers
Starter
Main Body of Lesson
Plenary
- Use this Adding Forces sheet. Student should add forces along a line and may go onto an extension activity where they both label and add up forces for a number of situations.
Homework
Additional Information
Resources Required
Textbook References
- None
Website References
- None
Skills Addressed
Safety/Hazards
- None
Notes
- None