Every sub-topic OCR can examine in this topic, with its reference number from the official specification. The Y12 and Y13 tags show when each sub-topic is usually taught.
1.1.1PlanningY13
1.1.2ImplementingY13
1.1.3AnalysisY13
1.1.4EvaluationY13
1.2Practical skills assessed in the practical endorsementY13
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Easy and medium questions from this topic, each with a worked solutions and the mark for every step. All 101 questions in this topic, free, no account needed.
Practical skills
Easy
Planning a measurement · Year 12 · 1 mark
What is the best way to find the diameter of a thin wire?
(1)
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Working, step by stepMarks
A micrometer has a resolution of 0.01 mm. Repeating at different places and angles allows for the wire not being perfectly uniform or round.A: Use a micrometer at several places along the wire, turning it between readings, and find the mean
B1
Total1
MMethodMethod mark: for a correct method, even with a slip.
AAccuracyAccuracy mark: for a correct answer from a correct method.
BIndependentIndependent mark: for a correct fact or result on its own, with no method needed.
A student times one oscillation of a pendulum with a stopwatch. Which change does most to reduce the percentage uncertainty in the period?
(1)
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Working, step by stepMarks
The absolute uncertainty in the timing is the same, but it is now a much smaller fraction of the time measured.C: Time 20 oscillations and divide by 20
B1
Total1
MMethodMethod mark: for a correct method, even with a slip.
AAccuracyAccuracy mark: for a correct answer from a correct method.
BIndependentIndependent mark: for a correct fact or result on its own, with no method needed.
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