Difference between revisions of "4-WAV-02a"
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(New page: ==Outcomes== * Pupils can state and use the Law of Reflection. * Pupils can explain refraction as due to a change of speed in different media. * Pupils can predict the change in direction ...) |
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==Main Body of Lesson== | ==Main Body of Lesson== | ||
*Use small bulb, radiant heater, two parabolic mirrors, camera and temperature probe to demonstrate that heat waves are reflected just as light waves are. | *Use small bulb, radiant heater, two parabolic mirrors, camera and temperature probe to demonstrate that heat waves are reflected just as light waves are. | ||
| + | * Pupils carry out Law of Reflection experiment and discover (for themselves) the Law of Reflection. | ||
| + | |||
==Plenary== | ==Plenary== | ||
==Homework== | ==Homework== | ||
Revision as of 15:46, 11 November 2009
Contents
Outcomes
- Pupils can state and use the Law of Reflection.
- Pupils can explain refraction as due to a change of speed in different media.
- Pupils can predict the change in direction of a wave due to refraction, including examples using light (including dispersion) and in water, using wave front to explain what is occurring.
Specification References
Starter
- Ask pupils how a mirror works. Link reflection to smoothness of a surface.
- (If you're feeling really brave you could ask why mirrors reflect things right-to-left but not top-to-button.)
Main Body of Lesson
- Use small bulb, radiant heater, two parabolic mirrors, camera and temperature probe to demonstrate that heat waves are reflected just as light waves are.
- Pupils carry out Law of Reflection experiment and discover (for themselves) the Law of Reflection.
Plenary
Homework
Additional Information
Resources Required
Textbook References
- Pople 7.02 pp. 142-145
