Chapter 3: Work, energy and momentum Flashcards
1
Q
How do you work out momentum?
A
Momentum = mass X velocity
2
Q
What is the symbol and unit for momentum
A
P, and Kg m/s
3
Q
What does the conservation of momentum mean?
A
The momentum before a collision must equal the momentum after a collision
4
Q
What does increasing the time that an impact takes do?
A
Reduce the force of the impact
5
Q
What are the two factors in car stopping distances?
A
Thinking distance and breaking distance
