Newton third law

• What does Newton's third law state about the forces between two interacting objects?

  The forces they exert on each other are equal and opposite.
• What does the "equal" part of Newton's third law refer to?

  It refers to the magnitude of the two forces.
• What does the "opposite" part of Newton's third law refer to?

  It refers to the direction of the forces.
• If you push a box with a force of 100 newtons, what force does the box exert on you?

  100 newtons in the opposite direction.
• What is the force that the box exerts called?

  Normal contact force.
• What determines whether you or the box will move when you push it?

  The mass of the box and the force applied.
• If the box is small, what is likely to happen when you push it?

  The box will move because it has a much lower mass.
• If the box is large, what might happen when you push it quickly?

  You might be pushed backwards instead of the box moving.
• How is pushing off a wall similar to pushing a box?

  In both cases, you exert a force, but you may be the one that moves.
• What happens if the box is medium-sized when you push it?

  You might get pushed backwards a little, and the box might still go forwards a bit.
• What is the equation related to Newton's second law?

  F = m a
• How can you rearrange the equation \( F = m a \) to find acceleration?

  Acceleration is equal to force divided by mass: \( a = \frac{F}{m} \).
• What is required for an object to be accelerated and move?

  You need either a high force or a small mass.
• Why does the smaller object generally move more when pushed?

  Because it has a smaller mass.
• What are the key concepts of Newton's third law of motion?

  • Forces between two objects are equal and opposite.
  • Magnitude of forces is equal.
  • Direction of forces is opposite.
  • Example: Pushing a box results in equal force exerted back.
• How does mass affect movement when two objects interact?

  • Smaller mass: object moves more easily.
  • Larger mass: object may not move at all.
  • Medium mass: both objects may experience some movement.
• What is the relationship between force, mass, and acceleration?

  • Newton's second law: \( F = m a \)
  • Rearranged: \( a = \frac{F}{m} \)
  • High force or small mass needed for acceleration.