| Lesson 5 - Measuring sound | Previous Lesson
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| Objective | ||
| In this lesson students carry out further investigations into the nature of sound using an oscilloscope. The generalised wave model is introduced and the terms defined. Using a source (or sources) which can deliver sound at variable amplitude and frequency students will be able to see how volume is related to amplitude and how pitch relates to frequency. | ||
| Prescribed Focus Area | Skills Development | Content |
P2 A student applies the processes that are used to test and validate models, theories and laws of science with particular emphasis on first-hand investigations in physics |
P12.1 Students perform first-hand investigations |
D1.4 Students learn to define and apply the following terms to the wave model: 'medium', 'displacement', 'amplitude', 'period', 'compression', 'rarefaction', 'crest', 'trough', 'transverse waves', 'longitudinal waves', 'frequency', wavelength', 'velocity |
| Activity | Resources | Homework |
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A1.3 First-hand investigation to gather information about the frequency and amplitude of waves using an oscilloscope or electronic data-logging equipment. |
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Nil |
| Management issues | Nominal duration | |
| Students will be using electrical equipment and will require some briefing as to how it should be used. The lesson could be presented as a double period or as a theory lesson, on the wave model, followed by a practical session. | 2 hours |
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