3.3 Impulse and Momentum

• Momentum is defined as the product of an object's mass and its velocity
• What is the mathematical expression for momentum?

  p = m × v
• Impulse causes a change in momentum.


  True
• Collisions are divided into two main types: elastic and inelastic
• Kinetic energy is conserved in all collisions.

  False
• Impulse is the product of force and time.


  True
• What is the formula for impulse in terms of force and time?

  Impulse = Force × Time
• Impulse causes a change in momentum.


  True
• What is the SI unit for impulse?

  N·s
• The impulse-momentum theorem states that impulse equals the change in momentum.


  True
• What is conserved in inelastic collisions?

  Momentum
• What is the mathematical expression for the conservation of momentum in a system with two objects?
• Impulse causes a change in momentum.

  True
• What is the formula for impulse?

  Force × Time
• Momentum is a vector quantity with both magnitude and direction
• The impulse-momentum theorem can be expressed as FΔt = m(v_f - v_i).

  True
• In inelastic collisions, kinetic energy is converted into heat, sound, or deformation
• What is the mathematical expression for the conservation of momentum?

  m_{1}v_{1} + m_{2}v_{2} = m_{1}v_{1}' + m_{2}v_{2}'</latex>
• A closed system in the conservation of momentum implies no external forces are present.


  True
• Inelastic collisions always result in objects sticking together.

  False
• Kinetic energy is conserved in all types of collisions.

  False
• What is an example of an elastic collision?

  Ball bouncing on a surface
• Match the concept with its definition:

  Momentum ↔️ The product of mass and velocity

  Impulse ↔️ The change in momentum
• What is the formula for momentum?

  mass × velocity
• Match the type of collision with its characteristic:

  Elastic Collision ↔️ Conserves both momentum and kinetic energy

  Inelastic Collision ↔️ Conserves momentum but not kinetic energy
• Momentum is conserved in all types of collisions.


  True
• What does the conservation of momentum state in a closed system?

  Total momentum remains constant
• What happens to the total kinetic energy in an inelastic collision?

  It is not conserved
• Match the type of collision with its property:

  Elastic Collision ↔️ Conservation of kinetic energy

  Inelastic Collision ↔️ Kinetic energy loss
• What type of energy is produced in an inelastic collision due to the loss of kinetic energy?

  Heat
• Steps to analyze momentum in two dimensions

  1️⃣ Resolve velocities into x and y components

  2️⃣ Apply conservation of momentum separately for x and y axes

  3️⃣ Solve for unknown velocities
• Impulse is defined as the change in momentum
• How is impulse related to momentum?

  Impulse is the change in momentum
• Match the concept with its definition:

  Momentum ↔️ The product of mass and velocity

  Impulse ↔️ The change in momentum
• What is the formula for momentum in terms of mass and velocity?

  Momentum = mass × velocity
• What is conserved in elastic collisions?

  Momentum and kinetic energy
• The conservation of momentum states that the total momentum of a closed system remains constant
• Momentum is the product of an object's mass and velocity
• Impulse is the product of force and time
• Impulse is a scalar quantity.

  False