Momentum

• What is the date mentioned in the study material?

  3rd November 2004
• What is momentum in physics?

  A property of all moving objects
• What type of quantity is momentum?

  It is a vector quantity
• What does conservation of momentum state?

  Total momentum before equals total momentum after
• How does mass or velocity affect momentum?

  Greater mass or velocity results in greater momentum
• What is the formula for velocity in terms of momentum and mass?

  V = p ÷ m
• What is the unit of momentum?

  kgm/s
• What is the momentum of a stationary object?

  Zero momentum
• What is the formula for mass in terms of momentum and velocity?

  M = p ÷ v
• What is the formula for momentum in terms of velocity and mass?

  V = p ÷ m
• What is the unit of mass in the momentum formula?

  kg
• What does a vector quantity imply about momentum?

  It has both size and direction
• How does momentum change in a closed system during a collision?

  It remains constant before and after
• What happens to momentum when an object is stationary?

  It has zero momentum
• If an object's mass is 10 kg and its velocity is 2 m/s, what is its momentum?

  $p =$$m \times v =$$10 \text{ kg} \times 2 \text{ m/s} =$$20 \text{ kgm/s}$
• If an object has a momentum of 30 kgm/s and a mass of 5 kg, what is its velocity?

  $V =$$p ÷ m =$$30 \text{ kgm/s} ÷ 5 \text{ kg} =$$6 \text{ m/s}$
• What is the formula for momentum?

  p = m × v
• What does the equation $V =$$p ÷ m$ represent?


  It calculates velocity from momentum and mass