momentum

• What is the momentum of an object that is not moving?

  Zero
• What is the equation for calculating momentum?

  Momentum = mass × velocity
• What is the unit of momentum?

  kilogram m/s
• If a car has a mass of 1,000 kg and is not moving, what is its momentum?

  Zero
• How do you calculate the momentum of a car with a mass of 1,000 kg moving at 20 m/s?

  1,000 kg × 20 m/s
• What is the momentum of a car moving at 20 m/s with a mass of 1,000 kg?

  20,000 kg m/s
• What is the principle of conservation of momentum?

  • Total momentum before an event equals total momentum after.
  • Applies in a closed system.
• In a collision, if a van collides with a stationary car, what happens to the total momentum?

  It remains the same
• What happens to the momentum of the van and car after the collision?

  They move together at a lower velocity
• How does the momentum of the cannon and cannonball behave before and after firing?

  Both total momentum remains zero
• What happens to the cannon's momentum when the cannonball is fired?

  The cannon recoils backwards
• What is the total momentum before the cannon fires?

  Zero
• What is the total momentum after the cannon fires?

  Zero
• What types of questions can you find in the vision workbook related to momentum?

  • Calculating momentum
  • Applying conservation of momentum
  • Solving real-world momentum problems