Unit+7+-+Momentum+and+Impulse

=__Unit 7 - Momentum, Impulse and Collisions__=

//What is momentum video//
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Khan Academy Videos to watch
Introduction to Momentum - @http://www.khanacademy.org/science/physics/v/introduction-to-momentum Ice Skater throws a ball - @http://www.khanacademy.org/science/physics/v/momentum--ice-skater-throws-a-ball

__Momentum Notes__

 * Momentum is inertia in motion. Every object has mass and velocity, thus momentum is the product of this. Units = kg*m/s
 * Impluse describes a change in momentum
 * Momentum is a vector quantity because it has direction.
 * Momentum is ALWAYS conserved. The sum of momentum in = sum of momentum out.
 * Velocity can change, according to mass; but the momentum of the system doesn't change.
 * Force of object = change in momentum/per change in time
 * Impulse: The average force upon the object multiplied by the time the force is acting on the object. Impulse is also the change in momentum of the object. I = F*change in time OR I = change in momentum OR I = mv - mv(original)
 * Inelastic collisions are 'sticky' / start with two velocities and two masses and end up with with one velocity and one mass (ex: momentum worksheet with bumper cars)
 * relationship between the impulse and momentum are directly proportional
 * Impulse = change in momentum = average force • change in time

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