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Success Criteria:
I am able to describe Newton’s Third Law and its principle that forces come in action-reaction pairs.
I am able to recognise and articulate examples of action-reaction force pairs in various situations, such as walking, jumping, or pushing off a wall.
I am able to solve problems that involve identifying and explaining the action-reaction forces in a given situation.
Fun Fact
Newton’s Third Law is what makes a balloon fly around the room when you let it go without tying it off! When you release the balloon, the air inside rushes out in one direction, and in response, the balloon itself is pushed in the opposite direction. This action-reaction pair creates the chaotic flight pattern as the balloon zips around! 🎈🚀
Key terms
Action-Reaction Pair is the concept that every force (action) has a corresponding force (reaction) that is equal in magnitude and opposite in direction.
Action Force is the initial force exerted by one object onto a second object.
Reaction Force is the force exerted by the second object back onto the first object in response to the action force.
Equal and Opposite is the principle that action and reaction forces are always equal in size but opposite in direction.
Action-Reaction Forces is the forces described by Newton’s Third Law, where each force in the pair acts on a different object but always comes in pairs.
Learning Tasks
Chapter 12.3 key knowledge questions p.376
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