Booklet 7: Momentum and Collisions Flashcards
1
Q
Conservation of Momentum
A
within a closed system, the total momentum before and after collision remains constant in any direction
2
Q
Inelastic Collisions
A
kinetic energy is lost
3
Q
Elastic Collisions
A
kinetic energy isn’t lost
4
Q
Perfectly Inelastic
A
objects stick together upon colliding
5
Q
Newton’s First Law
A
an object will remain at rest or at a constant velocity unless it is acted on by an external force
6
Q
Newton’s Second Law
A
the resultant force acting on an object is directly proportional to the rate of change of linear momentum, both of which are in the same direction
F=(mv-mu)/t = ma
7
Q
Newton’s Third Law
A
when two bodies interact, the forces they exert on each other are equal, opposite and of the same type
