FA1 · P1 · Q6–10 · Tool 3 · measurement and units; A.1 vectors and scalars
Paper 1 MCQ, Q6–10: quantities, significant figures and vectors
What makes a physical quantity, significant figures in a product, an order-of-magnitude estimate, and subtracting vectors.
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These five questions test careful reading: what a quantity must have, how precise an answer can be, and how to subtract arrows.
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Which is a physical quantity?
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A car’s speed is 6.0 m s⁻¹ and it travels for 1.25 s. The distance, to the correct number of significant figures, is…