4.1 Linear Momentum

• The SI unit for linear momentum is kg m/s
• Order the variables from the formula p = mv</latex> based on their relationship to momentum, from strongest to weakest.

  1️⃣ Mass (m)

  2️⃣ Velocity (v)
• The impulse-momentum theorem can be expressed as $F\Delta t =$$\Delta p =$$mv_{f} - mv_{i}$, where F is the net force, Δt is the time interval, and Δp is the change in momentum
• The SI unit for linear momentum is kg m/s
• The formula for linear momentum (p) is mv
• The direction of linear momentum is the same as the direction of the velocity
• Linear momentum is a vector quantity.

  True
• Linear momentum has both magnitude and direction.


  True
• The impulse-momentum theorem states that impulse equals the change in momentum.

  True
• Linear momentum is a vector quantity with both magnitude and direction.


  True
• What is the SI unit for linear momentum?

  kg m/s
• If a ball's mass doubles while its velocity remains constant, its momentum also doubles

  True
• What does the impulse-momentum theorem state?

  Impulse equals change in momentum
• The total momentum of a closed system remains constant if no external forces act on it


  True
• In which type of event is linear momentum conserved?

  Collisions
• The formula for impulse-momentum theorem is FΔt = mvf - mvi
• The formula for conservation of linear momentum is \(\sum p_{\text{initial}}\) = \(\sum p_{\text{final}}\)
• Linear momentum is defined as the product of its mass and velocity
• What is the formula for linear momentum?

  $p =$$mv$
• What is the key concept in analyzing collisions using linear momentum?

  Conservation of momentum
• What is the SI unit for impulse?

  Ns
• What is linear momentum defined as?

  Mass times velocity
• Linear momentum is a vector quantity

  True
• What is the linear momentum of a 0.5 kg ball moving at 10 m/s to the right?

  5 kg m/s to the right
• Arrange the steps of the impulse-momentum theorem in the correct order:

  1️⃣ Define impulse as force times time interval

  2️⃣ State that impulse equals change in momentum

  3️⃣ Express impulse as FΔt

  4️⃣ Express change in momentum as mvf - mvi
• What is the SI unit for impulse?

  Ns