Momentum - Conservation Flashcards
1
Q
When is momentum conserved?
A
No external force
2
Q
What is the total momentum of two objects before they collide equal to?
A
Momentum after they collide
3
Q
What direction for momentum is considered positive?
A
Right
4
Q
What direction for momentum is considered negative?
A
Left
5
Q
When does the velocity of an object’s center of mass change?
A
External force
6
Q
What is an elastic collision?
A
When two objects collide and move separately
7
Q
What is an inelastic collision?
A
When two objects collide and move together
