Difference between revisions of "3-ELE-02"
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==[[Specifications|Specification]] References== | ==[[Specifications|Specification]] References== | ||
| − | 2.20 recall that insulating materials can be charged by friction | + | *2.20 recall that insulating materials can be charged by friction |
| − | 2.21 explain that positive and negative electrostatic charges are produced on materials by the | + | *2.21 explain that positive and negative electrostatic charges are produced on materials by the |
loss and gain of electrons | loss and gain of electrons | ||
| − | 2.22 recall that there are forces of attraction between unlike charges and forces of repulsion | + | *2.22 recall that there are forces of attraction between unlike charges and forces of repulsion |
between like charges | between like charges | ||
| − | 2.23 explain electrostatic phenomena in terms of the movement of electrons | + | *2.23 explain electrostatic phenomena in terms of the movement of electrons |
| − | 2.24 recall the potential dangers of electrostatic charges, e.g. when fuelling aircraft and | + | *2.24 recall the potential dangers of electrostatic charges, e.g. when fuelling aircraft and |
tankers | tankers | ||
| − | 2.25 recall some uses of electrostatic charges, e.g. in photocopiers and inkjet printers | + | *2.25 recall some uses of electrostatic charges, e.g. in photocopiers and inkjet printers |
| + | |||
==Starter== | ==Starter== | ||
* Revise previos lesson (basics of electrostatics) | * Revise previos lesson (basics of electrostatics) | ||
Revision as of 05:02, 15 January 2008
Contents
Outcomes
- Pupils can predict whether the charges will attract or repel
- Pupils can describe dangers and uses of electrostatic charge
Specification References
- 2.20 recall that insulating materials can be charged by friction
- 2.21 explain that positive and negative electrostatic charges are produced on materials by the
loss and gain of electrons
- 2.22 recall that there are forces of attraction between unlike charges and forces of repulsion
between like charges
- 2.23 explain electrostatic phenomena in terms of the movement of electrons
- 2.24 recall the potential dangers of electrostatic charges, e.g. when fuelling aircraft and
tankers
- 2.25 recall some uses of electrostatic charges, e.g. in photocopiers and inkjet printers
Starter
- Revise previos lesson (basics of electrostatics)
Main Body of Lesson
- VDG demos; hair standing, flying pie dish (+ rice crispies), fluorescent tube, Barbie head, candle, Bunsen lighting, discharging
- Uses and dangers of static charge; photocopier, ink jet printer, car spraying, precipitator, refuelling aircraft, paper mill)
Plenary
- Application of electrostatic concepts to real life uses and dangers
Homework
Additional Information
Resources Required
- VDG and accesories
- Wimshurst machine
Textbook References
Website References
Skills Addressed
Safety/Hazards
- Beware pacemakes, heart conditions, cochlea implants etc.
- No "human capacitors"
