Momentum, Impulse, Work, Energy And Power Flashcards
Momentum
The product of the mass and velocity of the object
Newton 2 in terms of momentum
The net force acting on an object is equal to the rate of change of momentum
Isolated/closed system
A system that has no net external forces action on it
Law of conservation of linear momentum
The total linear momentum of an isolated system system remains the constant
Elastic collision
A collision in which both momentum and kinetic energy are conserved
Inelastic collisin
A collision in which only momentum is conserved
Impulse
The product of the net force and the contact time
Work
The product of the displacement and the component of the force parallel to the displacement
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 objects motion
Mechanical energy
The sum of gravitational potential and kinetic energy at a pointr
Law of conservation of energy
The total energy in a system cannot be created or destroyed, only transferred from one form to another
Principle of the conservation of mechanical energy
In the absence of air resistance or any external forces, the mechanical energy of an object is constant
Work-Energy theorem
The work done by a net force on an object is equal to the change in kinetic energy of the object
Power
The rate at which work is done
The rate at which energy is transferred
