Momentum Flashcards
1
Q
All moving objects have momentum. The faster an object is moving
momentum is proportional to its velocity
momentum is also proportional to the mass
the unit of momentum is (kg m/s)
A
the greater its momentum (if mass is the same)
2
Q
What is a closed system?
A
A closed system is a system which no external forces act (forces that are acting outside the system)
3
Q
What can change the momentum / velocity of an object
A
a force
4
Q
the red object has twice the mass of the green object,
A
it moves with half the velocity
5
Q
the force of an object is equal to
A
its rate of change of momentum
