![]() ![]() Teacher asks students to build a group of four or five.Īsks all students to answer the question.Ĭhoose student randomly to show the answer in front of the class. Having an interest and curiosity towards the environment,Īnalyse the impulse and impulsive forces in a collision. Observing, Defining, Making Conclusion, Generating Ideas, Notes on PowerPoint slides and animation provided. Students respond to the teacher question. Teacher asks students to relate impulsive force with time of collision and change in momentum. Teacher asks students to imagine (thought experiment). How does impulsive force relate to the change in momentum? Teacher briefing about time of collision.ī. How does impulsive force relate to the time of collision? Impulsive force is rate of change of momentum.Ī. Impulsive force is directly proportional to the change of momentum. If the change of momentum is bigger, the impulsive force exerted will increase. If the change of momentum small, the impulsive force exerted also small.ī. Impulsive force is inversely proportional to the time of collision.Ĭhange of momentum affected the value of impulsive force.Ī. If time of collision shorter, greater impulsive force acting on object. If time of collision shorter, greater impulsive force acting on object.ī. Time of collision affected the magnitude of the impulsive force Ī. Shows examples of animation involving impulsive force.Īsks student to give example of situation involving impulsive force.Īttitudes/values: Being confident, well-mannered Teacher introduces a new technical term which is impulsive force. ![]() Shows demonstration again and asks student what causes the car move backward. Teacher introduces a new technical term which is impulse as a change of momentum in a collision. Then asks student whether momentum of a moving object will change or not after the collision. Make connection to students’ prior knowledge on momentum by asking questions.Įlicit students’ ideas: Teachers shows the demonstration of collision between two cars. Impulsive force is force that is exerted on the object in a collision. Impulse is defined as change of momentum. Momentum is product of mass and velocity. Students have already learned the concept of force, inertia, momentum and the effects of forces. Power point slide, teaching courseware and text book. Materials, equipments and resources materials: Demonstrate Scientific Attitudes & Noble ValuesĪ) Appreciate the contribution of science andī) Have critical and analytical thinking.ĭ) Have an interest and curiosity towards the Learning Outcomes : At the end of the lesson, a student is able to:ī) Give examples of situations involving impulsive forces.Ĭ) Define Impulse as a change of momentum.ĭ) Define impulsive force as the rate of change ofĪ) Observing, making inference, comparing, predicting, and communicating.ī) Attributing, comparing and contrasting, making conclusion, relating, evaluating and analysing.Ĭ. Learning Objective : 2.6 Analysing impulse and impulsive force ![]()
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