Key term for Edexcel GCSE Physics, used in Half-life.
The number of decays recorded per second by a detector; it is typically lower than the true activity because the detector does not catch every emitted particle.
Count rate appears in Edexcel GCSE Physics revision content for Radioactivity, especially Half-life and Half-life Calculations.
Radioactivity
Half-life • Half-life Calculations
Radioactivity
Half-life • Prediction of Decay
Radioactivity
Half-life • Half-life Definition
Radioactivity
Half-life • Activity Decrease
Radioactivity
Radiation Types • Comparison of Radiations
Radioactivity
Radiation Types • Measuring Radioactivity
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