JHS1 Science · Term 2 Week 11: Electricity and Electronics

Lesson notes

Learning Objectives

Indicator: B7.4.2.2.3 - Discuss the function of each electronic component such as resistor, diode, and inductor, and their interdependence for the functioning of an electronic gadget

By the end of the lesson, learners can:

State the function of a resistor, diode, LED, and inductor in an electronic circuit.
Explain how a resistor controls the brightness of an LED by limiting the flow of current.
Describe how connecting a diode in the correct direction (forward bias) allows current to flow, while reversing it (reverse bias) blocks current.
Predict what happens to the brightness of an LED when resistors, diodes, or inductors are added to or removed from a circuit.
Explain how resistors, diodes, and inductors work together for a gadget like a phone charger, radio, or television set to function properly.

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Curriculum details

Strand: Forces and Energy (Strand 4)
Sub-strand: Electricity and Electronics (4.2)
Content standard: B7.4.2.2 - Demonstrate knowledge of how to assemble and explain the functions of basic electronic components and their interdependence in an electronic circuit
Indicator: B7.4.2.2.3 - Discuss the function of each electronic component such as resistor, diode, and inductor, and their interdependence for the functioning of an electronic gadget
Suggested placement: Term 2, Week 11 (Week 23 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: Science, Common Core Programme (JHS1-JHS3), 2023, p. 32
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Discuss the roles and the significance of the following electronic components in a circuit and how they affect each other:
i. LED,
ii. Resistor,
iii. Diode, and
iv. Inductor.
2. Explain changes in brightness in an LED in relation to addition of resistors, diodes, and inductors in an electronic circuit