Conceptual Physics Flashcards

Terms Definitions
The product of the mass of an object and it's velocity.
The product of the force acting on an object and the time during which it acts.
Relationship of impulse and momentum
Impulse is equal to the change in momentum of the object that the impulse acts upon.
Ft=change in mv
Law of conservation of momentum
In the absence of an external force, the momentum of a system remains unchanged. Hence, the momentum before an event involving only external forces is equal to the momentum after the event:
mv(before event) = mv(after event)
Elastic collision
A collision in which colliding objects rebound without lasting deformation or the generation of heat.
Inelastic collision
A collision in which the colliding objects become distorted, generate heat, and possibly stick together.
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