Impulse

Question 1

momentum

Answer 1

• A measure of the amount of motion possessed by a moving body. Is the product of mass and velocity (M=mv)
  
  • An object can only have momentum if its moving
  • The greater the momentum the more force that needs to be applied to either stop or slow it down
    If 2 objects collide, the one with the most momentum will be the least affected

Question 2

impulse

Answer 2

• Is the application of a force over a period of time to change the momentum of an object. Is the product of force and time (I=FT)
  The change in momentum

Question 3

what can impulse do for movement

Answer 3

• Where F=ma and T is the length of time for which the force is applied to the object:
  Impulse creates momentum
  Changes momentum
  Stopping momentum

Question 4

increasing momentum

Answer 4

• To maximise the momentum of an object, one must aim to increase both the force and time force is applied
  
  • Force is increased through effective summation of force and improved strength
  • Time is increased through improved technique and equipment modifications
    Baseball swing

Question 5

decreasing momentum

Answer 5

• To reduce the momentum of an object, one typically looks to increase the time component
  Catching a cricket ball