Momentum and Impulse Lesson 1: Momentum and Impulse
ALLIAH RAIN V. BALACCUA IX - MINDFULNESS MS. LABONETE
ASSESSMENT Put the word TRUE if the statement is correct and FALSE if it is not. FALSE 1. Momentum is possessed by all objects. TRUE 2. Impulse is always equal to the change in momentum. FALSE 3. A sumo wrestler at rest has greater momentum than a gliding ice skater. TRUE 4. A truck can still change its momentum if minimal force will be applied over a long period of time. TRUE 5. During a jump shot, bending your knees as you land helps you decrease the impact force.
ADDITIONAL ACTIVITIES Solve the problem. Situation: A car with a mass of 1 892kg, traveling at 12m/s, was heading towards a wall. It applied 70N of force on its brakes for 6 seconds until it slows down. Find: 1. The momentum of the car. P = mv P = (1,892 kg)(12 m/s) = 22, 704 kg m/s
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2. The resulting impulse of the car. J = f*t J = (70N)(6s) = 420N s
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SCIENCE 9
Quarter 4 - Module 2
Momentum and Impulse Lesson 2: Conservation of Momentum
ALLIAH RAIN V. BALACCUA IX - MINDFULNESS MS. LABONETE
WHAT I CAN DO Concept Map. Create a concept map that will summarize the Law of Conservation of Momentum. Use the terms listed on the box in making your concept map. You may add words or phrases to further elaborate your work.
ASSESSMENT Put the word TRUE if the statement is correct and FALSE if it is not. FALSE 1. Heat and deformation are results of elastic collisions. FALSE 2. After collision, the momentum can be lost depending on the damage on the object. TRUE 3. The Law of Conservation of Momentum states that the initial momentum of the object will be equal to the momentum after the collision. TRUE 4. In an inelastic collision, the two objects will move with the same velocity after collision. TRUE 5. During inelastic collisions, the two bodies will move with the direction of the object with greater momentum.
ADDITIONAL ACTIVITIES Solve the problem. Situation: A 1 kg pistol, initially at rest, shoots a bullet with a mass of 2.5g. After firing, the bullet travels at a speed of 150m/s. What will be the recoil velocity after the gun has been fired?