Newton's 3rd Law

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

  They are equal and opposite.
• What does the "equal" part of Newton's third law refer to?

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

  The direction of the two 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 pushing?

  The mass of the box and the force applied.
• What happens if the box is small when you push it?

  The box is likely to move.
• What happens if the box is large when you push it?

  The box may not move at all.
• What can happen if the box is medium-sized when you push it?

  You might move backward a little, and the box may move forward.
• 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?

  a = F / m.
• What is required for an object to be accelerated and move?

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

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

  • Forces between two objects are equal and opposite.
  • Magnitude refers to the strength of forces.
  • Direction refers to the way forces act.
  • Example: Pushing a box results in equal force back.
• How does mass affect movement when forces are applied?

  • Smaller mass: more likely to move.
  • Larger mass: less likely to move.
  • Medium mass: may result in partial movement for both.