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Momentum

CHAPTER 12 – MOTION AND MOMENTUM. Momentum. Momentum pg 337. 1. Properties of objects. color size composition mass. 2. What is mass?. the amount of matter in an object. Momentum pg 337. 3. kilogram. SI unit for mass.

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Momentum

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  1. CHAPTER 12 – MOTION AND MOMENTUM Momentum

  2. Momentum pg 337 • 1. Properties of objects • color • size • composition • mass • 2. What is mass? the amount of matter in an object

  3. Momentum pg 337 • 3. kilogram SI unit for mass the more mass an object has, the harder it is to start it moving, slow it down, speed it up, or turn it (the more mass an object has, the harder it is to change its motion) • 4. Why is it harder to stop an adult than a small child?

  4. Momentum pg 337,338 • 5. What is inertia? the tendency of an object to resist a change in its motion a measure of how hard it is to stop an object • 6. What is momentum?

  5. Momentum pg 338 • 7. What is the formula for momentum? momentum = mass * velocity in kg in m/s in kg * m/s p = m * v An object’s momentum: • increases as velocity increases • decreases as velocity decreases • has direction that is the same direction as its velocity • 8. How does an object’s momentum change as velocity changes?

  6. Momentum pg 338 mass: m = 14 kg step 1: what do you know? • 9. Calculate the momentum of a 14 kg bicycle traveling north at 2 m/s. velocity: speed: s = 2 m/s direction: north step 2: what do you want to find? momentum: p = m * v step 3: substitute p = 28 kg*m/s north p = (14 kg)(2 m/s north)

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