Understanding Nuclear Fission and Fusion

What does nuclear fusion involve?

• Using chemical reactions to generate energy

• Combining lighter elements into a heavier one

• Splitting of a large atom into smaller parts

• Breaking down of uranium into lighter elements

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What element is primarily involved in the nuclear fission process discussed?

• Carbon

• Helium

• Hydrogen

• Uranium-235

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What is a byproduct of nuclear fission that can remain radioactive for thousands of years?

• Iodine-131

• Hydrogen

• Oxygen

• Nitrogen

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How is electricity generated using nuclear fission?

• Through solar panels

• Using turbines driven by steam

• By chemical battery cells

• By direct conversion of nuclear energy

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What temperature is estimated to be necessary for hydrogen nuclei to fuse on Earth?

• 10 million degrees Celsius

• 500,000 degrees Celsius

• 100 million degrees Celsius

• 1 million degrees Celsius

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What does the core of a protostar do to initiate nuclear fusion?

• It rotates rapidly

• It splits into multiple parts

• It cools down

• It becomes extremely hot

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Which process creates more energy, nuclear fission or fusion?

• Neither creates energy

• Nuclear fusion

• Both create equal energy

• Nuclear fission

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What is the final message of the video?

• Be kind to someone today

• Keep studying hard

• Stay educated on nuclear energy

• Always remember the science

Which of the following is true about nuclear fission?

• The mass of the product is greater than the mass of the original nucleus
• The mass of the product is less than that of the original nucleus
• The mass of the product is the same as the mass of the original nucleus
• The mass of the product is 100 times greater than the original nucleus

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What is the main advantage of nuclear fusion over nuclear fission?

• Fusion produces more radioactive waste.

• Fusion requires less energy to initiate.

• Fusion produces more energy per unit of fuel.

• Fission reactions are easier to control.