Difference between revisions of "4-WAV-04a"
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(New page: ==Outcomes== * Pupils can identify the sections of the electromagnetic spectrum. * Pupils can identify the uses and dangers of sections of the electromagnetic spectrum. ==[[Specifications|...) |
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* Pupils can identify the uses and dangers of sections of the electromagnetic spectrum. | * Pupils can identify the uses and dangers of sections of the electromagnetic spectrum. | ||
==[[Specifications|Specification]] References== | ==[[Specifications|Specification]] References== | ||
+ | * 3.9, 3.10, 3.11, 3.12 | ||
+ | |||
==Starter== | ==Starter== | ||
+ | * Show pupils [[EM Spectrum Circus|EM spectrum circus]]. | ||
+ | |||
==Main Body of Lesson== | ==Main Body of Lesson== | ||
− | * Assign each group of pupils two sections of the EM spectrum, pupils should find the uses of one section and the dangers of another. | + | *Assign each group of pupils two sections of the EM spectrum, pupils should find the uses of one section and the dangers of another (AGR has hand-out cards for pupils). |
* Pupils present uses and dangers to the class. | * Pupils present uses and dangers to the class. | ||
+ | * During talks pupils should make rough notes, which will then be made into neat notes for homework. | ||
+ | * Alternatively go through the following with the group: | ||
+ | ====Uses==== | ||
+ | * Radio - communication | ||
+ | * Microwave - communication, energy transfer (e.g. microwave oven, solar satellite) | ||
+ | * Infrared - thermal energy transfer, night vision | ||
+ | * Visible | ||
+ | * Ultraviolet - sterilisation, tanning, | ||
+ | * X-ray - medical (diagnosis), x-ray diffraction (crystallography) | ||
+ | * Gamma ray - sterilisation, medical (treatment) | ||
+ | |||
+ | ====Dangers==== | ||
+ | * Radio - negligible hazard | ||
+ | * Microwave - negligible hazard, internal heating | ||
+ | * Infrared - surface heating | ||
+ | * Visible | ||
+ | * Ultraviolet - blindness, sunburn | ||
+ | * X-ray - blindness, cancers (mutation) | ||
+ | * Gamma ray - blindness, cancers (mutation) | ||
+ | |||
==Plenary== | ==Plenary== | ||
+ | * Use Jodrell Bank's [http://www.jodrellbank.manchester.ac.uk/astronomy/chromoscope/index2.html Chromoscope] to explore the sky in different parts of the spectrum. | ||
==Homework== | ==Homework== | ||
+ | * Using rough notes created in class, combined with textbook/internet, pupils create neat notes on uses/dangers of each section of the EM spectrum. | ||
=Additional Information= | =Additional Information= |
Latest revision as of 10:21, 31 October 2010
Contents
Outcomes
- Pupils can identify the sections of the electromagnetic spectrum.
- Pupils can identify the uses and dangers of sections of the electromagnetic spectrum.
Specification References
- 3.9, 3.10, 3.11, 3.12
Starter
- Show pupils EM spectrum circus.
Main Body of Lesson
- Assign each group of pupils two sections of the EM spectrum, pupils should find the uses of one section and the dangers of another (AGR has hand-out cards for pupils).
- Pupils present uses and dangers to the class.
- During talks pupils should make rough notes, which will then be made into neat notes for homework.
- Alternatively go through the following with the group:
Uses
- Radio - communication
- Microwave - communication, energy transfer (e.g. microwave oven, solar satellite)
- Infrared - thermal energy transfer, night vision
- Visible
- Ultraviolet - sterilisation, tanning,
- X-ray - medical (diagnosis), x-ray diffraction (crystallography)
- Gamma ray - sterilisation, medical (treatment)
Dangers
- Radio - negligible hazard
- Microwave - negligible hazard, internal heating
- Infrared - surface heating
- Visible
- Ultraviolet - blindness, sunburn
- X-ray - blindness, cancers (mutation)
- Gamma ray - blindness, cancers (mutation)
Plenary
- Use Jodrell Bank's Chromoscope to explore the sky in different parts of the spectrum.
Homework
- Using rough notes created in class, combined with textbook/internet, pupils create neat notes on uses/dangers of each section of the EM spectrum.
Additional Information
Resources Required
Textbook References
- Pople 7.11 pp. 160-163