P. Momentum and Impulse Flashcards
1
Q
Define momentum
A
The product of an object’s mass and its velocity.
2
Q
Describe linear momentum
A
A vector quantity with the same direction as the velocity
of the object.
3
Q
State Newton’s second law of motion in terms of momentum
A
The net force acting on an object is equal to the rate of change of momentum of the object in the direction of the net force.
4
Q
Define impulse
A
The product of the net force acting on an object and the time the net force acts on the object.
5
Q
Explain what is meant by an isolated system
A
A system on which the net external force is zero.
6
Q
State the principle of conservation of linear momentum
A
The total linear momentum of an isolated system remains constant
