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5 (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 Combined Science - Question 5 - 2023 - Paper 1

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5-(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 Combined Science-Question 5-2023-Paper 1.png

5 (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 shown in Figure... show full transcript

Worked Solution & Example Answer:5 (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 Combined Science - Question 5 - 2023 - Paper 1

Step 1

Which of these is a scalar quantity?

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Answer

The scalar quantity among the options is distance (B), as it only has magnitude and does not have direction, unlike acceleration, force, and weight which are vector quantities.

Step 2

Describe how to measure the speed of the falling stack of cupcake cases.

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Answer

  1. Measure the height from which the cupcake cases are dropped.

  2. Measure the time taken for the cupcake cases to fall.

  3. Use the formula:

    extaveragespeed=distancetime ext{average speed} = \frac{\text{distance}}{\text{time}}

    to calculate the speed, where distance is the height measured.

  4. Repeat the experiment with different numbers of cupcake cases in the stack to see how it affects the speed.

  5. Plot a graph of the speed of fall against the number of cupcake cases dropped, using average values.

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