Newton’s Laws

• What is Newton’s first law?

  An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.
• What is Newton’s second law?

  F = ma
• What is force measured in?

  Newtons (N)
• What is mass measured in?

  kilograms (kg)
• What is acceleration measured in?

  m/s^2 (meters per second squared)
• What is Newton’s third law?

  Every action has an equal and opposite reaction
• What is thinking distance?

  The distance traveled by a vehicle while the driver reacts to a situation.
• What is braking distance?

  The distance a vehicle travels from the moment the brakes are applied until it comes to a complete stop.
• What is weight?

  The force exerted on an object due to gravity.
• What is mass?

  Mass is a measure of the amount of matter in an object.
• What factors affect thinking distance?

  Speed, reaction time, and road conditions.
• What factors affect braking distance?

  Speed, road conditions, tire grip, and vehicle weight.
• What is the equation for weight?

  Weight = mass x acceleration due to gravity
• What is weight measured in?

  Newtons (N)