Difference between revisions of "Waves"
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* [[4-WAV-01a]] Wave Types and Basic Characteristics | * [[4-WAV-01a]] Wave Types and Basic Characteristics | ||
* [[4-WAV-02a]] Reflection and Refraction | * [[4-WAV-02a]] Reflection and Refraction | ||
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Most lessons are common to single and dual award. Only weeks 2 and 3 have additional material for separate award to cover. This means that separate award will have more time in weeks 1, 4, 5 and 6 to reinforce more. | Most lessons are common to single and dual award. Only weeks 2 and 3 have additional material for separate award to cover. This means that separate award will have more time in weeks 1, 4, 5 and 6 to reinforce more. | ||
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=Suggested lessons= | =Suggested lessons= | ||
Revision as of 16:24, 21 November 2010
Lesson Order
- 4-WAV-01a Wave Types and Basic Characteristics
- 4-WAV-02a Reflection and Refraction
- 4-WAV-02b Reflection and Refraction (and Diffraction (Single Award Only))
- 4-WAV-03a Sound Waves and Hearing
- 4-WAV-03b Sound Waves and Hearing (and Oscilloscopes (Single Award Only))
- 4-WAV-04a The Electromagnetic Spectrum
- 4-WAV-05a Heat Transfers - conduction and convection
- 4-WAV-06a Heat Transfers - radiation and preventing heat loss
- 4-WAV-Test Revision and Test
Most lessons are common to single and dual award. Only weeks 2 and 3 have additional material for separate award to cover. This means that separate award will have more time in weeks 1, 4, 5 and 6 to reinforce more.
Suggested lessons
Week 1 Double lesson (SS and DA)
- Pupils understand and can use the terms amplitude, frequency, wavelength and period.
- Pupils can describe the differences between longitudinal and transverse waves and give examples of each.
- Pupils recall that waves transfer energy without transferring matter.
- Pupils can use the wave equation
Week 2 Double lesson (SS and DA)
- Pupils can state and use the Law of Reflection. Simple reflection experiment.
- 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.
Week 2 Single lesson (SS)
- Pupils can explain diffraction as the spreading of a wave around an object.
- Pupils can sketch different diffraction effects where λ << a; λ = a; λ >> a
Week 3 Double lesson (SS and DA)'
- Pupils can recall the hearing range of a human and determine whether a frequency lies within the range.
- Pupils understand that any sound wave with a frequency greater than 20kHz is known as ultrasound.
- Pupils can recall different uses of ultrasound and can explain the idea of ultrasound scanning using an echo.
- Pupils can describe how to measure the speed of sound using a clapping method and an electronic method.
Week 3 Single lesson (SS)
- Pupils understand how an oscilloscope and microphone can be used to display a sound wave.
- Pupils can read an oscilloscope trace to determine the time period and frequency of a sound wave.
- Pupils understand how the volume and pitch affect the amplitude and frequency of a sound wave.
Topics Covered
- Longitudinal and transverse waves
- The electromagnetic spectrum
- Sound waves and hearing
