Calculating momentum: <latex>p = mv</latex>

• How do you convert grams to kilograms?

  • Divide the mass in grams by 1000
  • Formula: $m_{\text{kg}} =$$\frac{m_{\text{g}}}{1000}$
• What is the formula for momentum?

  $p =$$mv$
• What values are needed to calculate momentum?

  • Mass ($m$)
  • Velocity ($v$)
• What does the variable $v$ represent in the momentum formula?


  Velocity
• What are the units of momentum?

  kg m/s
• What does the variable $p$ represent in the momentum formula?


  Momentum
• How do you calculate the momentum of an object?

  Multiply mass by velocity.
• What does momentum measure in an object?

  How much "oomph" it has in movement
• What does the variable $m$ represent in the momentum formula?


  Mass
• What are the units of mass?

  kg
• How does mass affect momentum in an object?

  • More mass increases momentum
  • Momentum is calculated as $p =$$mv$
  • Heavier objects require more force to stop
• What is the process to find momentum?

  1. Identify mass ($m$) and velocity ($v$).
  2. Use the formula $p =$$mv$.
  3. Calculate the product to find momentum.
• What does a valid answer for momentum include?

  Correct units and accurate value
• How does velocity affect momentum in an object?

  • Higher velocity increases momentum
  • Momentum is calculated as $p =$$mv$
  • Faster objects require more force to stop
• How do you verify the correctness of the momentum calculation?

  Check units and final value for consistency
• What are the conversion factors for grams to kilograms and kilometers per hour to meters per second?

  • Grams to Kilograms: Divide by 1000
  • Kilometers per hour to Meters per second: Multiply by $\frac{1000}{3600}$
• What do you substitute into the momentum formula?

  Mass and velocity values
• If an object has a mass of 2 kg and a velocity of 5 m/s, what is its momentum?

  $10 \text{ kg m / s}$
• How does mass affect momentum?

  • Heavier objects have more momentum
  • Momentum depends on both mass and velocity
• What are the standard units for mass and velocity in momentum calculations?

  Kilograms (kg) and meters per second (m/s)
• How do you calculate momentum using mass and velocity?

  Multiply mass by velocity
• What is the first step after calculating momentum?

  Check your units and final answer
• How does a friend's momentum on a skateboard depend on their mass and speed?

  • Momentum increases with greater mass
  • Momentum increases with higher speed
• What does the momentum formula $p =$$mv$ represent?


  It represents the "oomph" of an object.
• How does velocity affect momentum?

  • Faster objects have more momentum
  • Momentum depends on both mass and velocity
• What are the units of velocity?

  m/s
• Why is it important to check your units after calculating momentum?

  To ensure accuracy in the final answer
• What does momentum measure?

  • Quantity of motion an object has
• What are the variables involved in the momentum calculation?

  • Mass ($m$): measured in kg
  • Velocity ($v$): measured in m/s
  • Momentum ($p$): measured in kg m/s
• What are the units for mass, velocity, and momentum?

  • Mass ($m$): kg
  • Velocity ($v$): m/s
  • Momentum ($p$): kg m/s
• Why is it important to use standard units for momentum calculations?

  To ensure accurate and consistent results
• What is the result of converting 36 km/h to meters per second?

  10 m/s
• What is the result of converting 500 grams to kilograms?

  0.5 kg
• How do you convert kilometers per hour to meters per second?

  • Multiply the speed in km/h by $\frac{1000}{3600}$
  • Formula: $v_{\text{m / s}} =$$\frac{v_{\text{km / h}} \times 1000}{3600}$