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Half Life

Half Life. The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value. . Half life Experiment. Take 100 pennies and put them in a box Shake the box Take out all the pennies that are heads up

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Half Life

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  1. Half Life

  2. The half-life of a quantity whose value decreases with time is the interval required for the quantity to decay to half of its initial value.

  3. Half life Experiment • Take 100 pennies and put them in a box • Shake the box • Take out all the pennies that are heads up • Count them / graph it • Shake the box • Take out all the pennies that are heads up • Count them / graph it • continue until you run out of pennies

  4. Half Life Experiment 2 • T=0  100 pennies • T=1 (1st shake)  • T=2 (2nd shake)  • T=3 (3rd shake)  • T=4 (4th shake)  • T=5 (5th shake)  • T=6 (6th shake)  • T=7 (7th shake)  • T=8 (8th shake)  • T=9 (9th shake)  • T=10 (10th shake)  • T=11 (11th shake) 

  5. Graph of half life 100 90 80 70 60 50 40 30 20 10 0 PennIes 0 1 2 3 4 5 6 7 8 9 10 11 12 Time in trials

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