Mechanics - Forces and Momentum (Module 9) Flashcards
1
Q
What Is The Principle Of Conservation Of Momentum?
A
This states that for a system of interacting objects, the total momentum remains constant, provided no external resultant force acts on the system
2
Q
Define An Elastic Collision
A
A collision where there is no loss of kinetic energy
3
Q
Define An Inelastic Collision
A
A collision where the colliding objects have less kinetic energy after the collision than before the collision.
4
Q
How Do You Work Out Momentum?
A
Mass times Velocity = Momentum
5
Q
What Is The Unit For Momentum?
A
Kg m s^-1
6
Q
What Is The Equation For Impulse?
A
It is the force x the time for which the force acts. Therefore Impulse = F x (Change in time)
7
Q
What Part Of A Force Time Graph, Does The Impulse Represent?
A
The area underneath the line.
