| Lesson 3 - Sound waves | Previous Lesson
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| Objective | ||
| In this lesson students are introduced to sound as a wave. Through teacher demonstrations and through question and answer discussion they see that sound cannot propagate with a physical medium. The distinction with light will be mentioned but further discussion held over until lesson 8. | ||
| 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 |
P14 Students draw valid conclusions from gathered data and information |
D1.3 Students learn to identify that mechanical waves require a medium for propagation while electromagnetic waves do not (ref. Lesson 8) |
| Activity | Resources | Homework |
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Nil |
| Management issues | Nominal duration | |
| This lesson structured around a teacher-led question and answer session. Students will be asked to hypothesise about the expected outcomes of various experiments and to relate the demonstrations to their everyday experiences. | 1 hour |
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