Combined Science GCSE
Experimental variation and reliability of measurements
What Experimental variation and reliability of measurements means in Combined Science GCSE, as defined for AQA.
Definition of Experimental variation and reliability of measurements
Check what you remember
Read the wording for your board, then hide it and explain Experimental variation and reliability of measurements in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A single count-rate reading is unreliable because the count over the next minute might be higher or lower than the last.
Topics that use Experimental variation and reliability of measurements
Related terms
- half-life
- Halving of nuclei number and count rate
- net decline
- Random nature of radioactive decay
- Statistical predictability of large samples
- Half-life and activity
- Half-life as a measurable constant
- Practical applications of half-life
Using Experimental variation and reliability of measurements in the exam
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