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Senior High School: 11th and 12th Grade
Physics
Radioactivity - Radioactive Substances
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Q.1
A certain radioactive material emits two protons and two neutrons to become stable. What kind of radiation has been emitted by this material?
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Alpha
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Beta
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Gamma
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Light
Q.2
If a particle is radioactive and emits electromagnetic waves, what kind of decay is taking place?
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Alpha decay
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Beta decay
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Gamma decay
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Water decay
Q.3
How do we dispose of nuclear waste from our nuclear reactors?
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Burn it
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Bury it
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Freeze it
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Feed it to animals
Q.4
Radioactive substances can be harmful to humans. Which of the following materials could be used to block all types of radiation?
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Thin sheet of aluminum
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A tennis ball strategically placed between the source of radiation and a person
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A very thick piece of paper
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A very thick piece of lead
Q.5
What is emitted from a particle if beta decay occurs?
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A helium atom
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An electron
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A burst of electromagnetic radiation
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A small Russian doll
Q.6
What type of radiation is the most harmful to humans?
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Alpha
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Beta
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Gamma
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They are all dangerous
Q.7
Which of the following conditions could be caused by exposure to radiation?
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Vomiting
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Hair loss
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Death
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All of the above
Q.8
Which material found in nature is a naturally-occurring fissile isotope?
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Boron-5
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Carbon-12
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Uranium-235
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Plutonium-244
Q.9
Which of the following materials is the most-used fuel within nuclear reactors?
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Uranium
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Plutonium
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Boron
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Argon
Q.10
Which of the following instruments can be used to measure the amount of radiation being emitted by a source?
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Geiger-Muller tube
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A ticker tape timer
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A mercury thermometer
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An orrery
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