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8 (a) Which of these is a scalar quantity? A acceleration B distance C force D weight (b) A student has some cupcake cases - Edexcel - GCSE Physics - Question 8 - 2023 - Paper 1

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8 (a) Which of these is a scalar quantity? A acceleration B distance C force D weight (b) A student has some cupcake cases. One cupcake case is show... show full transcript

Worked Solution & Example Answer:8 (a) Which of these is a scalar quantity? A acceleration B distance C force D weight (b) A student has some cupcake cases - Edexcel - GCSE Physics - Question 8 - 2023 - Paper 1

Step 1

Which of these is a scalar quantity?

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Answer

The correct answer is B: distance. Scalar quantities are defined by having only magnitude and no direction, whereas acceleration, force, and weight are vector quantities that also have a direction.

Step 2

Describe the situation involving the cupcake cases.

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Answer

In this scenario, the student is dropping a stack of cupcake cases with one case shown in Figure 14. When the student drops the stack with the base facing downwards, the fall of the cupcake cases will be influenced by various factors including the number of cases in the stack. As the number of cupcake cases increases, the overall speed at which the stack falls may be affected by the increased air resistance and mass of the stack. The more cases there are, the more weight is present, which could potentially increase the speed of descent until terminal velocity is reached. This phenomenon can be explored further by considering how stacking the cases might alter the air resistance experienced.

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