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Unit 5 Notes

Unit 5 Notes. Momentum. p=mv. In the last unit, we learned about conservation of energy. In this unit, we see conservation of momentum Momentum (p) is equal to mass times velocity *** P is for power. p is for momentum***. Momentum, like energy, can’t be created or destroyed.

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Unit 5 Notes

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  1. Unit 5 Notes Momentum

  2. p=mv • In the last unit, we learned about conservation of energy. • In this unit, we see conservation of momentum • Momentum (p) is equal to mass times velocity • *** P is for power. p is for momentum***

  3. Momentum, like energy, can’t be created or destroyed. ∑mv = constant When two objects collide, m1v1 + m2v2 before the collision equals m1v1 + m2v2 after the collision.

  4. Types of Collisions Elastic Collision: No kinetic energy is lost during the collision. Really bouncy objects can come close to this. Inelastic collision: A lot of kinetic energy is lost during the collision. Two objects combining together and moving away at a common velocity.

  5. Explosion: Two objects move apart due to some sort of energy being converted to kinetic energy.

  6. Impulse • J=F∆t = ∆p • This is the change in momentum. It is also the area underneath a force vs time graph.

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