U1: Newton's Laws and Momentum Flashcards
1
Q
Newton’s second law
A
Force = /\ momentum / /\ time
2
Q
Equation for momentum
A
P=mv
3
Q
Newton’s third law
A
Every action has a equal and opposite reaction, colliding objects, one will gain the same force as lost by the other
4
Q
Conservation of momentum
A
Total momentum in a system is conserved
5
Q
Impulse
A
Is change in momentum, given by:
/\P = F • /\T
6
Q
What is an elastic and inelastic collision?
A
Elastic:
kinetic energy before collision = kinetic energy after collision
Not true in inelastic collisions
7
Q
When given a collision question what is the first consideration?
A
Conservation of momentum
8
Q
Newton’s first law?
A
F=ma
