momentum

• What is the equation for momentum?

  p = mv
• What does 'p' represent in the momentum equation?

  Momentum in kg m/s
• What does 'm' represent in the momentum equation?

  Mass in kilograms
• What does 'v' represent in the momentum equation?

  Velocity in metres per second
• What is the momentum of an object at rest?

  No momentum
• How does momentum affect an object's direction?

  It makes changing direction difficult
• Why does momentum depend on direction?

  Because velocity is a vector quantity
• What does positive momentum indicate about an object's direction?

  It travels to the right
• What does negative momentum indicate about an object's direction?

  It travels to the left
• When does the momentum of an object change?

  If it accelerates, decelerates, or changes direction
• What factors determine the momentum of an object?

  • Mass of the object
  • Velocity of the object
  • Direction of travel
• What is the unit of momentum?

  kg m/s
• What is the relationship between mass and momentum in a collision?

  Heavier objects can have less momentum
• What happens to momentum in a collision?

  Momentum is always conserved
• What is the difference between elastic and inelastic collisions?

  Elastic collisions conserve kinetic energy
• What is the principle of conservation of momentum?

  Total momentum before equals total after
• What defines a closed system in momentum conservation?

  Absence of external forces
• What happens to momentum when two objects move towards each other at the same speed?

  Overall momentum is zero
• How is momentum calculated before a collision?

  Only the moving mass contributes
• What happens to the momentum of mass M after a collision?

  It gains momentum
• What does Newton's third law state about forces during interaction?

  Forces are equal and opposite
• How do two colliding objects react according to Newton's third law?

  One speeds up, the other slows down
• What does the equation for inertial mass represent?

  Ratio of force to acceleration
• How does inertial mass affect acceleration?

  Larger mass means smaller acceleration
• What is inertia?

  • Resistance to change in motion
  • Tendency to remain at rest or constant velocity
• What is the relationship between force and acceleration in inertial mass?

  Inversely proportional
• How is inertial mass determined from acceleration?

  By observing the smallest acceleration
• What does the definition of inertial mass resemble?

  Newton's second law