🔍 Key Concepts

• Newton’s Third Law of Motion definition • Meaning of equal and opposite in physics • Relationship between action and reaction forces

💭 Think About

• Which choice best captures that the reaction force is both equal in size and opposite in direction to the action force? • Is the phrase describing both that the forces are equal and that they act in opposite directions, without adding extra conditions? • Does any option incorrectly say unequal, or add limits like only certain directions or leaving out that the reaction is opposite?

✅ Before You Answer

• Eliminate any choice that says unequal or no reacting force. • Check that the correct choice includes both equal and opposite as part of the same statement, not split or weakened. • Make sure the statement applies generally to all directions, not only up or down or some special case.