In this chapter, we will be learning about force and motion. We will start by understanding linear motion, which includes stationary, uniform velocity, and non-uniform velocity. We will also learn how to determine distance and displacement, speed and velocity, and acceleration and deceleration.
Next, we will study linear motion graphs. We will learn how to interpret displacement-time graphs, velocity-time graphs, and acceleration-time graphs. We will also analyze displacement-time graphs to determine distance, displacement, and velocity.
Moving on, we will explore free fall motion and gravitational acceleration. We will explain free fall motion with examples and conduct experiments to determine the value of gravitational acceleration.
Lastly, we will delve into the concept of inertia. We will understand inertia through examples and identify the relationship between inertia and mass through experiments.
• Describe the type of linear motion of an object in the following states: stationary, uniform velocity and non-uniform velocity
• Determine: distance and displacement, speed and velocity, acceleration and deceleration
• Solve problems involving linear motion using the linear motion equations
• Interpret types of motion from the following: displacement-time graph, velocity-time graph, acceleration-time graph
• Analyse displacement-time graph to determine distance, displacement and velocity
• Analyse velocity-time graph to determine distance, displacement, velocity and acceleration
• Convert and sketch: displacement-time graph to velocity-time graph and vice-versa, velocity-time graph to acceleration-time graph and vice-versa
• Solve problems involving linear motion graphs
• Explain with examples free fall motion and gravitational acceleration
• Experiment to determine the value of gravitational acceleration
• Solve problems involving the Earth’s gravitational acceleration for objects in free fall
• Explain the concept of inertia by examples
• Identify the relationship between inertia and mass through experiment
• Justify the effects of inertia on daily life
• Explain momentum, p as the product of mass, m and velocity, v
• Apply the Principle of Conservation of Momentum in collision and explosion
• Define force as the rate of change of momentum
• Solve problems involving F= ma
• Communicate to explain impulse and impulsive force
• Solve problems involving impulse and impulsive force
• Describe weight as the gravitational force that acts on an object, W = mg
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