Momentum Flashcards
1
Q
Momentum formula, unit, symbol
A
Mass x Velocity, kg m/s, p
2
Q
Momentum is a ________ quantity
A
Vector, it has a direction and can be negative
3
Q
In a closed system, the total momentum before a collision = ?
A
total momentum before collision = total momentum after a collision
4
Q
What is Impulse?
A
Change in momentum
5
Q
How to calculate the force required to cause a certain change in momentum (Impulse) ?
A
Force = Final momentum - Initial Momentum / Time
6
Q
What are 3 ways we can increase the time it takes for momentum to be lost in a car crashing?
A
- Air bags
- Crumble zone
- Seat belts
