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Physics YEAR 10 > 7.5 Activity and half life > Flashcards

7.5 Activity and half life Flashcards

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1
Q

Define the half - life of a radioactive isotape

A

average time for no. nuclei in sample of isotope to halve

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2
Q

The count rate of a Geiger counter caused by radioactive source DECREASES/INCREASES as the activity of the source DECREASES/INCREASES

A

decreases

decreases

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3
Q

The number of ————– of a radioactive isotape and the count rate both DECREASE/INCREASE by ________ every half-life

A

atoms
decrease
half

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4
Q

DO equations questions page 93

A

DO equations questions page 93

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Physics YEAR 10 (11 decks)

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