Electrostatics · SHS2 Physics

Lesson notes

Learning Objectives

Indicator: 2.3.1.LI.4 - Describe the behaviour of a capacitor in DC and AC circuits.

By the end of the lesson, learners can:

Describe what happens to a capacitor in a DC circuit in terms of charging, the flow of current, and the final state of the circuit.
Explain the behaviour of a capacitor in an AC circuit in terms of continuous charging and discharging cycles.
Compare and contrast the behaviour of a capacitor in DC and AC circuits using observations from practical demonstrations.
State the role of frequency in affecting the opposition to current flow (capacitive reactance) in an AC circuit.
Construct and interpret simple circuits to demonstrate capacitor behaviour, recording observations clearly and communicating findings to peers.

Sign in with your phone number to read the full note and download the GES plan - free.

Sign in with phone number

Curriculum details

Strand: Electric Field, Magnetic Field and Electronics (Strand 3)
Sub-strand: Electrostatics (3.1)
Content standard: 2.3.1.CS.2 - Demonstrate knowledge and understanding of the structure and operation of capacitors. 2.3.1.LO.2 Explain and analyse the structure and working principles of capacitors and calculate capacitance.
Indicator: 2.3.1.LI.4 - Describe the behaviour of a capacitor in DC and AC circuits.
Suggested placement: Semester 2, Week 4 (Week 24 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. 120

Exemplars (from the NaCCA curriculum)

Project-Based Learning: Learners build a circuit to observe the behaviour of a capacitor in a DC circuit and then in an AC circuit. Learners record their observations and discuss with their colleagues in groups of mixed-ability.
Investigate and discuss the historical and contemporary contributions of individuals, including women and individuals with disabilities, to the development of the capacitor.
Assessment (2.3.1.AS.4). The document marks these depth-of-knowledge levels for this indicator: Level 1 Recall.
Teaching and Learning Resources:
- Science experimental kit with capacitors and connectors