Newton's Second Law of Motion

• What is Newton's second law of motion?

  It states that the acceleration of an object is proportional to the resultant force acting on the object and inversely proportional to the mass of the object.
• What does it mean when a resultant force is not zero?

  It means the object's velocity will change.
• How does the acceleration of an object relate to the resultant force and mass?

  • Acceleration is proportional to the resultant force.
  • Acceleration is inversely proportional to the mass of the object.
• How do you calculate the force needed to accelerate an object?

  By using the equation: Force = Mass × Acceleration.
• What is the equation for calculating force?

  Force (N) = Mass (kg) × Acceleration (m/s²)
• If an object has a mass of 5 kg and is accelerated by 4 m/s², what is the force required?

  20 Newtons
• How do you calculate the acceleration of an object given a force of 50 N and a mass of 0.5 kg?

  100 meters per second squared
• What is inertia in the context of Newton's first law?

  • Inertia is the property of an object to remain stationary or continue moving at the same speed and direction unless acted upon by a resultant force.
• What is inertial mass?

  It measures how difficult it is to change the velocity of an object.
• How does inertial mass affect the force required to produce acceleration?

  • An object with a large inertial mass requires a larger force to produce a given acceleration.
  • An object with a smaller inertial mass requires a smaller force for the same acceleration.