Segment 4C: Collisions
In this segment, we differentiate between elastic and inelastic collisions. The conservation of momentum and the conservation of energy are explored as we do examples involving these two types of collisions.
In this segment, we differentiate between elastic and inelastic collisions. The conservation of momentum and the conservation of energy are explored as we do examples involving these two types of collisions.
Learning Objectives
-Define inelastic and elastic collisions.
-Review the law of conservation of momentum and apply it to different types of collisions.
-Compare and contrast inelastic and elastic collisions by discussing whether momentum and/or kinetic energy are conserved.
-Do a one-dimensional example of each type of collision.
-Define inelastic and elastic collisions.
-Review the law of conservation of momentum and apply it to different types of collisions.
-Compare and contrast inelastic and elastic collisions by discussing whether momentum and/or kinetic energy are conserved.
-Do a one-dimensional example of each type of collision.
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Vocabulary
collision - when momentum or kinetic energy is transferred from one object to another. elastic collision - a collision where objects bounce off of one another; momentum and kinetic energy are conserved. inelastic collision - when two objects collide and do not bounce away from each other; momentum is conserved, kinetic energy is not conserved. kinetic energy (KE) - the energy of motion; equal to one half times mass times the square of the velocity of an object. momentum (p) - the quantity of motion of an object or, mass in motion; is calculated by multiplying the mass of an object by the velocity of an object. perfectly inelastic collision - when objects stick together, so that their final velocities are the same; momentum is conserved, kinetic energy is not conserved.
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