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Area 1: Our Dynamic Universe

Quick questions on Collisions, momentum and impulse: conservation and force-time - SQA Higher Physics

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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State the principle of conservation of momentum. [1 mark]
What is q2?
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A 2.0 kg2.0\ \text{kg} trolley at 3.0 m s13.0\ \text{m s}^{-1} collides and sticks to a 4.0 kg4.0\ \text{kg} stationary trolley. Calculate the common velocity afterwards. [3 marks]
What is q3?
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Explain how an airbag reduces the force on a passenger during a crash. [2 marks]

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