Waves · SHS1 Physics

Lesson notes

Learning Objectives

Indicator: 1.2.2.LI.1 - Explain the terminologies associated with spherical mirrors

By the end of the lesson, learners can:

Define concave mirror and convex mirror and identify each by its reflecting surface shape.
State the meaning of the pole, centre of curvature, principal axis, and radius of curvature of a spherical mirror with reference to a labelled diagram.
Define the principal focus and focal length for both concave and convex mirrors, noting how they differ between converging and diverging mirrors.
Use correct terminology to label a diagram of a spherical mirror, identifying at least five key terms accurately.
Research and present findings on at least three spherical mirror terms using reference materials or digital sources, demonstrating digital literacy and collaboration.

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Curriculum details

Strand: Energy (Strand 2)
Sub-strand: Waves (2.2)
Content standard: 1.2.2.CS.2 - Demonstrate knowledge and understanding of reflection on spherical mirrors 1.2.2.LO.2 Distinguish between images formed by converging and diverging mirrors and their characteristics
Indicator: 1.2.2.LI.1 - Explain the terminologies associated spherical mirrors
Suggested placement: Semester 1, Week 19 (Week 19 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. 54

Exemplars (from the NaCCA curriculum)

Enquiry learning: Using the internet/reference books let learners research to find the meaning of the following terms concave mirror, convex mirror, pole, principal focus, centre of curvature, principal axis, focal length, and radius of curvature before watching a video/simulation.
Explore contributions of vulnerable groups in the class.
Assessment (1.2.2.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding.
Teaching and Learning Resources:
- Audio-visuals
- Spherical mirrors
- PhET interactive simulations
- Internet
- projectors
- YouTube
- Interactive
- Reference virtual laboratory books.