SHS1 Physics · Semester 1, Week 19
Waves
Lesson notes
Learning Objectives
Indicator: 1.2.2.LI.2 - Describe the processes involved in image formation in spherical mirrors and their characteristics using ray tracing.
By the end of the lesson, learners can:
- State the characteristics of images formed by concave and convex spherical mirrors (real/virtual, upright/inverted, magnified/diminished) using correct terminology.
- Trace the paths of the three principal rays (parallel ray, focal ray, centre-of-curvature ray) to locate an image for objects placed at different positions in front of a concave mirror.
- Trace the paths of two principal rays to locate an image formed by a convex mirror and explain why all convex mirror images are virtual, upright and diminished.
- Distinguish between real and virtual images by explaining how each is formed and how each can be observed.
- Apply ray-tracing rules to predict image characteristics before drawing, then verify predictions using diagrams and PhET simulations.
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Sign in with phone numberCurriculum 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.2 - Describe the processes involved in image formation in spherical mirrors and their characteristics using ray tracing.
- 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.
- Source document note
-
The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:
- indicator text - p.54: the document prints this learning indicator code as 1.2.2.LI.1.2
- exemplars - p.54: the document prints this assessment code as 1.2.2.AS1.2
- Curriculum reference
- NaCCA curriculum document, p. 54
Exemplars (from the NaCCA curriculum)
Experiential learning: Let learners watch a video or using simulation see how spherical mirrors form images different images (virtual and real). Learners identify and note the rays that are involved in the image formation process. Provide equitable access to physics resources, equipment, technology, and opportunities for hands- on experiments or projects, ensuring all learners have equal access to Learning resources and experiences. Assessment (1.2.2.AS.2). The document marks these depth-of-knowledge levels for this indicator: Level 3 Strategic reasoning. Teaching and Learning Resources: - Audio-visuals - Spherical mirrors - PhET interactive simulations - Internet - projectors - YouTube - Interactive - Reference virtual laboratory books.