Momentum and impulses Flashcards
1
Q
Explain Newton’s three laws of motion
A
Law 1 = Conservation of momentum. In absence of external force, objects stay in a constant state of motion.
Law 2 = Law of momentum/acceleration. Rate of change of object is proportional to the forces acting on it in the direction of the forces acting on it
Law 3 = law of action and reaction. every action has an equal and opposite reaction.
2
Q
What is the relationship between momentum and impulse?
A
a change in momentum is produced by an impulse.
Impulse = force x time
- measured in newtons
3
Q
How does the conservation of momentum explain movement?
A
momentum is the quantity of motion, this explains how things can interact to cause movement.
