Momentum, Impulse, Work, Energy and Power

• Linear momentum

  the product of the mass and velocity of

  the object
• Newton's second law in terms of momentum

  The net force acting on an object is equal to the rate of change of momentum.
• The law of conservation of linear momentum

  The total linear Momentum of an isolated system remains constant (is conserved)
• Elastic Collision

  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
• Work done

  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 object's motion
• Mechanical energy

  the sum of gravitational potential and kinetic energy at a point
• The law of conservation of energy

  the total energy in a system cannot be created nor destroyed, only transformed from one form to another
• The law of 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 the kinetic energy of the object
• Power

  the rate at which work is done or the rate at which energy is transferred