momentum

• What is momentum defined as?

  Momentum is equal to the mass of an object multiplied by its velocity.
• Why is momentum considered a vector quantity?

  Because it has both magnitude and direction.
• What is the formula for calculating momentum?

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

  The total momentum before an event is equal to the total momentum after the event in a closed system.
• What does it mean for momentum to be conserved in a collision?

  It means the total momentum remains the same before and after the collision.
• What happens to the direction of momentum when two objects collide?

  • The total momentum direction is determined by the object with greater momentum.
  • The combined system moves in the direction of the object with greater momentum.
• How do you find the velocity of two colliding objects after the collision?

  By rearranging the momentum equation to find velocity after calculating total momentum.
• What is the momentum of a stationary object?

  Zero, because it has no velocity.
• How does the momentum of a gun and bullet relate before and after firing?

  The gun's momentum plus the bullet's momentum must equal zero.
• How do you calculate the recoil velocity of a gun after firing a bullet?

  • Calculate the bullet's momentum using its mass and velocity.
  • Set the gun's momentum equal to the negative of the bullet's momentum.
  • Solve for the gun's velocity.
• What is the symbol for momentum?

  The symbol for momentum is $p.$
• How can the momentum equation be expressed using its symbol?

  The equation can be written as $p =$$mv.$
• Momentum Conservation


  The total momentum before a collision is equal to the total momentum after the collision.