Physics A-Level
Half-life and its meaning
What Half-life and its meaning means in Physics A-Level, as defined for OCR.
Definition of Half-life and its meaning
Check what you remember
Read the wording for your board, then hide it and explain Half-life and its meaning in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The average time for half the nuclei in a sample to decay, and it is constant for a given isotope.
Topics that use Half-life and its meaning
- Radioactivity (OCR A-Level)
Related terms
- Absorber
- Alpha decay
- Beta-minus decay
- Beta-plus decay
- Carbon-14 and half-life
- Corrected count rate
- Decay constant
- Experimental measurement of half-life
Using Half-life and its meaning in the exam
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