4 - Radioactivity - Half Life & Dangers Flashcards

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1
Q

What is Half-Life?

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2
Q

How does the activity of a radioactive source decrease overtime?

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3
Q

What is the unit of activity of a radioactive isotope?

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4
Q

How is radioactivity used in Smoke Alarms?

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5
Q

How is radioactivity used in Irradiating Food?

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6
Q

How is radioactivity used in Sterilisation of Equipment

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7
Q

How is radioactivity used in Tracing and Gauging Thicknesses

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8
Q

How is radioactivity used in Diagnosing & Treating Cancer?

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9
Q

How can ionising radiation be dangerous to humans?

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10
Q

How can half-life affect the dangers of radiation?

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11
Q

What are some precautions taken to ensure the safety of people exposed to radiation?

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12
Q

What are the risks of medical people working in radioactive areas?

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13
Q

What are some differences between contamination and irradiation effects?

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14
Q

What is Background Radiation?

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15
Q

Where does Bg Radiation come from in terms of Earth and Space?

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