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12 Cards in this Set
- Front
- Back
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Define activity (units) |
Number of nucle decaying per second (1 Becquerel (bq) = 1 decay per second) |
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Define Half life |
Time required for the number of nuclei in a sample to fall half of the original |
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Why is half life a prediction |
Because nuclear decay is random |
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Decay constant |
The fixes probability a nucleus has of decaying |
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Why using negatives in decay equations |
To indicate their is now less orginal nuclei |
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What type of change is equation rate of activity proportional to activity |
Exponential |
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Problem with the iterative model of decay |
It assumes activity is constant inbetween time intervals making the lines straight |
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An electrical component that shows exponential decay |
Capacitor |
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What is a capacitor made of |
2 plates (sheets of thin metal foil) with an insulator in the middle |
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Symbol for a capacitor |
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How to charge a capacitor |
Run a potential difference through it. Negative charge will go into one plate and out of the other |
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Use of a capacitor |
Store of energy for use in a circuit |
