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AQA GCSE · Question 03.3 · Forces
For one of the masses put on the trolley, the student recorded three values of acceleration:
<br>
1.58 m/s², 1.53 m/s², 1.54 m/s²
<br><br>
Calculate the mean acceleration of the trolley.
For one of the masses put on the trolley, the student recorded three values of acceleration:
<br>
1.58 m/s², 1.53 m/s², 1.54 m/s²
<br><br>
Calculate the mean acceleration of the trolley.
How to approach this question
To calculate the mean (average) of a set of numbers, you need to:
1. Add all the values together.
2. Divide the sum by the number of values.
Show your working clearly.
Full Answer
To find the mean acceleration, we sum the recorded values and divide by the number of recordings (which is 3).
Sum of values = 1.58 + 1.53 + 1.54 = 4.65
Mean = Sum / Number of values = 4.65 / 3
Mean = 1.55 m/s²
Common mistakes
✗ Making an error in addition.\n✗ Dividing by the wrong number (e.g., 2 or 4 instead of 3).\n✗ Forgetting to show the working.
Practice the full AQA GCSE Physics Foundation Tier Paper 2
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