Every sub-topic AQA 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.
PS1.1Solve problems set in practical contextsY13
PS1.2Apply knowledge to practical contextsY13
PS2.1Comment on experimental design and evaluate methodsY13
PS2.2Present data appropriatelyY13
PS2.3Evaluate results and conclusions using uncertaintiesY13
PS2.4Identify variables, including control variablesY13
PS3.1Plot and interpret graphsY13
PS3.2Process and analyse data with the maths skillsY13
PS3.3Margins of error, accuracy and precisionY13
PS4.1Use a wide range of instruments and techniquesY13
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Easy and medium questions from this topic, each with a worked solutions and the mark for every step. All 42 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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