NEWTON'S THIRD LAW: ACTION AND REACTION
2 marks · NormalState Newton’s third law of motion.
Write out the standard statement used in your course.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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For every action there is an equal and opposite reaction.
Also accept: When one object exerts a force on another, the second exerts an equal and opposite force on the first.
Common mistakes: Mentioning only the action, not the reaction; Focusing on balanced forces rather than forces on different objects
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Marking points
B1 (a) · 2 marks · Gives the standard correct statement of Newton’s third law (allow slight variation in wording).
Worked solution
Newton’s third law: For every action there is an equal and opposite reaction.