PHYSICAL SCIENCES

• Momentum is the product of the mass and the velocity of an
• The law of conservation of linear momentum states that the total linear momentum of an object remains constant in magnitude and direction
• Impulse is the product of an object's net force and the time it's takes for the net force to act on the object.
• Impulse formula

  Fnet(change in time)=change in momentum

  OR

  Fnet(change in time)=mvf -mvi
• If there are multiple forces acting on an object, then the impulses from all those forces must be added together to get the total change in momentum
• Work energy theorem


  States that the total work done on an object is equal to the change in the kinetic energy of the object.
• Conservative force 


  A force or which the work done in moving an object between two points is independant of the path taken
• Non conservative


  A force for which the work done in moving an object between two points is dependant of the path taken
• Mechanical conservation of energy


  The total mechanical energy of an isolated system remains constant.
• Power 


  The rate at which work is done or energy is expanded
• Work 


  The transfer of energy