A-LevelPhysicsDynamicsMay/June 2017Paper 1 Q91 Mark
A book of weight W is at rest on a table. A student attempts to state Newton's third law of motion by saying that 'action equals reaction'. [Diagram shows a book resting on a table, with an arrow labelled W pointing downwards from the book.] If the weight of the book is the 'action' force, what is the 'reaction' force?
Athe force W acting downwards on the Earth from the table
Bthe force W acting upwards on the book from the table
Cthe force W acting upwards on the Earth from the book
Dthe force W acting upwards on the table from the floor
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of dynamics within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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