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Questions and Answers
What is the analogy for radiation in the comparison with a light bulb?
What is the analogy for radiation in the comparison with a light bulb?
Radioactive materials emit radiation indefinitely.
Radioactive materials emit radiation indefinitely.
False
Who discovered radioactivity in uranium?
Who discovered radioactivity in uranium?
Henri Becquerel
Radioactivity is the power to emit __________________.
Radioactivity is the power to emit __________________.
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What happens to the radioactivity of radioactive materials over time?
What happens to the radioactivity of radioactive materials over time?
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Match the following terms with their definitions:
Match the following terms with their definitions:
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A light bulb's power to emit light increases with age.
A light bulb's power to emit light increases with age.
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What is the result of radioactivity decaying over time?
What is the result of radioactivity decaying over time?
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Study Notes
Introduction to Radioactivity
- Radiation is compared to light emitted by a light bulb, where radioactive materials are the source of the radiation.
- Radioactivity is the power of radioactive materials to emit radiation, similar to a light bulb's power to emit light.
- As a light bulb ages, its power to emit light decreases, making the light weaker or non-existent.
- Similarly, as radioactive materials emit radiation, their radioactivity decays, and the amount of radiation decreases.
- Henri Becquerel discovered radioactivity in uranium in 1896.
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Description
This quiz introduces the concept of radiation and radioactive materials, explaining the relationship between them through an analogy with a light bulb.
