Dynamics · SHS1 Physics

Lesson notes

Learning Objectives

Indicator: 1.1.4.LI.1 (Explain how pressure changes with depth in a fluid)

By the end of the lesson, learners can:

Explain that pressure in a fluid increases with depth and state the relationship in their own words.
Describe and carry out an experiment to observe how pressure changes at different depths in a liquid.
Use the formula Pressure = Density × Gravity × Depth (P = ρgh) to calculate pressure at a given depth in a fluid.
Predict and explain real-life situations where increasing depth leads to greater pressure, using correct scientific vocabulary.

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Curriculum details

Strand: Mechanics and Matter (Strand 1)
Sub-strand: Dynamics (1.4)
Content standard: 1.1.4.CS.2 - Demonstrate knowledge and understanding of pressure. 1.1.4.LO.2 Recognise pressure as an agent of force.
Indicator: 1.1.4.LI.1 - Explain how pressure changes with depth in a fluid.
Suggested placement: Semester 1, Week 12 (Week 12 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:

content standard text - p.43: the document prints this content standard code as 1.1.4.CS.1
Curriculum reference: NaCCA curriculum document, p. 43

Exemplars (from the NaCCA curriculum)

Experiential learning:
- Learners create three equidistant holes on the same side of a bottle and using water and dirty oil, record their observations of how pressure changes with depth.
- Learners draw conclusions based on their observation of the experiment and compare to Pascal's principles.
Provide learners with exposure to diverse perspectives and opportunities to challenge stereotypes and promote inclusive practices in physics.
Assessment (1.1.4.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
- Internet
- Projectors
- YouTube
- Interactive virtual laboratory