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QLDPhysicsQuick questions

Unit 2: Linear motion and waves

Quick questions on Scalars and vectors (QCE Physics Unit 2)

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Distinguish scalar from vector quantities and give two examples of each. [2 marks]
What is q2?
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A swimmer crosses a river at 1.2 m s−11.2 \text{ m s}^{-1} perpendicular to the bank; the current is 0.5 m s−10.5 \text{ m s}^{-1} downstream. Calculate the resultant velocity magnitude and bearing relative to the bank. [3 marks]
What is q3?
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A Sunshine Coast drifter experiences a 0.6 m s−10.6 \text{ m s}^{-1} northeast current and a 0.3 m s−10.3 \text{ m s}^{-1} north wind-driven drift. (a) Resolve each into east-north components. (b) Sum the components.

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