momentum and impulse Flashcards
1
Q
what does an object in motion have ?
A
Momentum
2
Q
what is a elastic collision?
A
is a collision in which kenetic and momentum are conserved. the momentum and kenetic energy are the same before and after.
3
Q
what is a inelastic collision?
A
is one in which only momentum is conserved. the momentum before dose not equal the momentum after.
4
Q
what is impulse?
A
a concept of dealing with a force which is applied for a period of time.
5
Q
what is the quantities of impulse?
A
change in momentum.
force x time.
area under a force/time graph.
