Momentum Flashcards
What is the equation to find momentum?
Momentum = mass x velocity
What does a greater momentum mean?
The object becomes more difficult to stop.
What does greater mass mean?
The object becomes more difficult to stop.
What does greater velocity mean?
The object becomes more difficult to stop.
What is a system?
A part of the universe that we choose to analyse.
What is an internal force?
Experienced FROM an object inside the system.
How are momentum and mass linked?
Momentum is directly proportional to mass.
How are momentum and velocity linked?
Momentum is directly proportional to velocity.
What does constant momentum mean?
Momentum is the same at any point in time.
What are external forces?
Experienced from an object outside the system.
What will stop momentum being conserved?
An external force.
What are the assumptions in exams relating to the conservation of momentum?
- Assume total momentum is conserved.
- Assume no external forces act.
(UNLESS TOLD OTHERWISE)
What is the conservation of momentum?
The total momentum of a system is conserved as long as no external resultant forces act on the system.
