Biology GCSE
digital stopwatch
What digital stopwatch means in Biology GCSE, as defined for OCR.
Definition of digital stopwatch
Check what you remember
Read the wording for your board, then hide it and explain digital stopwatch in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Device used to time reaction duration, with times recorded to the nearest second to reflect human reaction time limitations.
Topics that use digital stopwatch
- Rates of enzyme-controlled reactions (OCR GCSE)
Related terms
- colorimetric and indicator endpoints
- gas collection apparatus
- graduated measuring syringes
- initial rate and tangent calculations
- parallax error
- pre-equilibration of biological reagents
- safe laboratory heating
- spotting tile sampling technique
Using digital stopwatch in the exam
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