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Physics Test Review !!
Terms in this set (15)
When a moving object makes a head-on collision with another object at rest, the moving object becomes at rest and the other object moves with the speed of the colliding object
When a moving billiard ball collides head-on with a ball at rest, What happens?
The first ball comes to rest and the second ball moves away with a velocity equal to the initial velocity of the first ball
what is transferred from the first ball to the second ball?
When objects collide without being permanently deformed and without generating heat, what is the collision called?
An elastic collision
Colliding objects bounce perfectly in what?
perfect elastic collisions
The sum of the what is the same before and after each collision?
What happens after an elastic collision?
the balls have different velocities
m1 v1 + m2 v2 = m1 (m1-) + m2 (v2-)
Inelastic Collisions :
A collision in which the colliding objects become distorted and generate heat during the collision (both masses stick together creating one mass)
What holds true even in inelastic collisions?
Whenever colliding objects become tangled or couple together, what occurs?
A totally inelastic collision
m1 v1 + m2 v2 = (m1 + m2) v-
What is conserved even when interacting objects don't move along the same straight line?
Momentum is a what?
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