Momentum and Impulse Flashcards
Momentum
It is the product of the mass and velocity of the object
Newton’s 2nd Law (momentum)
The net force acting on an object is equal to rate of change of momentum
Newton’s 3rd Law
When object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A
The law of conservation of momentum
The total linear momentum of an isolated system remains constant
Elastic collison
A collision in which both momentum and kinetic energy are conserved
Inelastic collision
A collision in which only momentum is conserved
Impulse
The product of the net force and the contact time
Gravitational potential energy
The energy an object possesses due to its position relative to a reference point
Kinetic energy
The energy an object has as a result of the object’s motion
Mechanical energy
The sum of gravitational potential energy and kinetic energy at a point
Law of conservation of energy
The total energy in a system cannot be created nor destroyed; only transformed from one form to another
Principle of conservation of mechanical energy
In the absence of air resistance or any external forces, the mechanical energy of an object is constant
