APES Unit 6 Half-Life Quiz

Thorium-234 has a half-life of 24 days. How much would remain after 72 days if you started with 100 grams?

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NGSS.HS-PS1-8

Fill in the blank: Nuclear Power is generated through ____________, where atoms of Uranium-235 are split into smaller parts after being struck by a neutron.

• fusion

• electricity

• fission

• neutrons

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NGSS.HS-PS1-8

If I have a sample of Carbon-14 with 12.5% of its original amount of radioactive material, how many half-lives have elapsed?

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NGSS.HS-PS1-8

True or False: Nuclear power is nonrenewable

• True

• False

The radioactive isotope Nickel-63 has a half-life of 100 years. How much would remain of a 10 gram sample after 400 years?

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NGSS.HS-PS1-8

There are three major nuclear disasters you must know for the AP Exam. Check all three below.

• Three Mile Island

• Ogallala Aquifer

• Chernobyl

• Fukushima

• Three Gorges Dam

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NGSS.HS-ESS3-4

How long will it take a sample of Polonium-194 to decay to 1/8 of its original amount, if it has a half-life of 0.7 seconds?

________-level Nuclear Waste has a high level of radioactivity, longer half-life, and is currently store in pools of water at the nuclear power plant.

• low

• high

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NGSS.HS-PS1-8

Astatine-218 has a half-life of 1.6 seconds. Suppose you have a 1.2 gram sample of Astatine-218. How much would remain after 6.4 seconds?

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NGSS.HS-PS1-8

Nuclear Power has several benefits. Check all that apply.

• large supply of Uranium

• no air pollution

• spent fuel emits radioactivity for thousands of years

• less radioactivity than coal

• high cost

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NGSS.HS-PS1-8

NGSS.HS-ESS3-4