Specification references covered: P2.14, P2.3, P2.20–P2.21 (resultant force; balanced/unbalanced forces; Newton’s First Law; force arrows; circular motion; centripetal force)

The Topic Mastery Sheet works through all five sub-questions from that question with exact mark scheme answers: resultant = 0 N; upward = 24 N; D = push by table on cat; B = pull by cat on Earth; weight less on Moon because g is smaller. The action-reaction vs balanced forces distinction is explained carefully. The Higher tier circular motion and centripetal force section includes the 3-mark mark scheme indicative content.

The Student Exam Practice Sheet (20 marks) includes: all five cat questions from the official paper; Newton’s First Law statement; constant speed resultant force; acceleration and resultant force; and five Higher centripetal force questions covering direction MCQs, centripetal force reasoning, and orbit explanation.

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