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Edexcel A level Physics Paper 3 June 2024 Exam Questions and Answers 100% Pass
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Edexcel A level Physics Paper 3 June 2024 Exam Questions and Answers 100% Pass
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Edexcel A level Physics Paper 3 June2024 Exam Questions and Answers
100% Pass
What is uncertainty? - Answer>>Interval within the true value is
considered to lie
What is error? - Answer>>the difference between a
measurement or result from the true value
How do you reduce percentage uncertainty? - Answer>>By
making the resolution/scale divisions shorter
By making the values larger
What's the maximum length you can measure with a micrometer?
- Answer>>2.5cm
What scale should you use on a multimeter? - Answer>>3sf
What are examples of random errors? - Answer>>timing, digital
meter fluctuations, non uniform diameters, GM tube counts
What are examples of systematic errors? - Answer>>Parallax,
zero, energy dissipation, friction
What are stopwatches and light gates good for? -
Answer>>Stopwatches can be used accurately for large values
of time - if repeating anomalies can be spotted and you calculate
the mean as error is random
Light gates are very good for measuring small values of time -
eliminates error due to human reaction time (not just human error)
How do you read the oscilloscope? - Answer>>Always think
percentage uncertainty if they give more than one wave form.
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