momentum and impulse Flashcards
momentum
It is the product of the mass and velocity of the object.
newton’s 2nd law in terms of momentum
The net force acting on an object is equal to the rate of change of momentum.
newton’s third law
Newton’s Third law – When object A exerts a force on object B, object B simultaneously exerts an oppositely directed force of equal magnitude on object A.
law of conservation of momentum
The law of conservation of momentum – The total linear momentum of an isolated system remains constant.
elastic collision
An elastic collision – A collision in which both momentum and kinetic energy are conserved.
inelastic collision
An inelastic collision – A collision in which only momentum is conserved.
impulse
Impulse – The product of the net force and the contact time.
gravitational potential energy
Gravitational potential energy – The energy an object possesses due to its position relative to a reference point.
kinetic energy
Kinetic energy – The energy an object has as a result of the object’s motion.
mechanical energy
Mechanical energy – The sum of gravitational potential and kinetic energy at a point.
Law of conservation of energy
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
Principle of conservation of mechanical energy – In the absence of air resistance or any external forces, the mechanical energy of an object is constant.
