Waves · SHS2 Physics

Lesson notes

Learning Objectives

Indicator: 2.2.2.LI.2 - Classify waves under longitudinal, transverse, electromagnetic, mechanical, progressive and stationary.

By the end of the lesson, learners can:

Classify at least five real-world wave examples (e.g., slinky motion, sound, light, water ripples) into the correct categories by comparing particle motion with wave direction.
Distinguish between mechanical and electromagnetic waves by identifying whether a material medium is required for transmission.
Differentiate between progressive and stationary waves by describing how energy is transferred in each case.
Work collaboratively in mixed groups to view wave demonstrations (videos, slinky, ripple tank) and present a classification chart with justified reasoning for each example.
Justify why a single wave can belong to multiple classification categories, such as a water wave being both mechanical and progressive.

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Curriculum details

Strand: Energy (Strand 2)
Sub-strand: Waves (2.2)
Content standard: 2.2.2.CS.1 - Demonstrate knowledge and understanding of the wave equation 2.2.2.LO.1 Deduce the wave equation to from the features of a periodic wave signal
Indicator: 2.2.2.LI.2 - Classify waves under longitudinal, transvers, electromagnetic, mechanical, progressive and stationary.
Suggested placement: Semester 1, Week 16 (Week 16 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 112

Exemplars (from the NaCCA curriculum)

Collaborative learning: Show videos of wave motions generated by slinky, ropes and ripple tank and let learners identify some examples of waves and classify them in the various categories of waves.
Recognise diverse talents and perspectives.
Assessment (2.2.2.AS.2). The document marks no depth-of-knowledge level for this indicator.
Teaching and Learning Resources:
- Audio-visuals
- Internet
- Projectors
- YouTube
- Interactive virtual laboratory
- Ripple tank
- Slinky
- Bowl of water