Nuclear Fission and Fusion Quiz

What does nuclear fusion mean?

• To produce electricity

• To create radioactive byproducts

• To merge atoms together

• To split atoms

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What is nuclear fission?

• The combining of lighter elements

• The process that powers stars

• The creation of helium

• The splitting of a large atom

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Which element is commonly involved in nuclear fission?

• Hydrogen

• Helium

• Deuterium

• Uranium-235

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What is produced when uranium-235 undergoes fission?

• Only gamma rays

• Only neutrons

• Neutrons, gamma rays, and energy

• Helium and energy

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What can the heat from nuclear fission be used for?

• To heat steam and turn a turbine

• To create radioactive byproducts

• To fuse hydrogen into helium

• To power stars

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How many nuclear reactors are currently in operation around the world?

• 600

• 439

• 500

• 300

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What is an example of nuclear fusion?

• Splitting uranium-235

• Combining deuterium and tritium

• Creating iodine-131

• Producing strontium-90

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What temperature is estimated to be needed to fuse hydrogen into helium on Earth?

• 100 million degrees Celsius

• 10 million degrees Celsius

• 1 million degrees Celsius

• 1 billion degrees Celsius

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What is a protostar?

• A very old star

• A very young star

• A type of nuclear reactor

• A byproduct of nuclear fission

Which process creates more energy?

• Radioactive decay

• Chemical reactions

• Nuclear fusion

• Nuclear fission

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NGSS.HS-PS1-8