JHS3 Science · Term 3 Week 1: Force and Motion

Lesson notes

Learning Objectives

Indicator: B9.4.4.1.2 - Demonstrate the application of Newton’s Third Law of motion in life.

By the end of the lesson, learners can:

State Newton’s Third Law of Motion in their own words: for every action force, there is an equal and opposite reaction force.
Predict what happens when a force is exerted on an object and when the object exerts a reaction force back.
Demonstrate Newton’s Third Law using simple activities with everyday materials available in Ghana.
Identify at least three real-life situations in Ghana where Newton’s Third Law is applied (e.g., walking, swimming, rowing a canoe, firing a gun, rocket launch).
Generate a hypothesis about what happens when two equal forces act in opposite directions and test that hypothesis through a practical activity.

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Curriculum details

Strand: Forces and Energy (Strand 4)
Sub-strand: Force and Motion (4.4)
Content standard: B9.4.4.1 - Demonstrate understanding of the concept of pressure and explain how pressure acts in everyday life
Indicator: B9.4.4.1.2 - Demonstrate the application of Newton's Third Law of motion in life.
Suggested placement: Term 3, Week 1 (Week 25 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. 112
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Predict what happens when:
a) a force is exerted on an object.
b) There is a reaction from the object
c) the force exerted is the same as the reaction of the object.
2. Perform an activity to justify your predictions.