Fusion Science

Which of the following chemical reactions is responsible for producing energy in the Sun?

• Helium nuclei combining by nuclear fission

• Oxygen molecules causing combustion of solar fuel cells

• Hydrogen nuclei combining to form Helium through nuclear fusion

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What happens during nuclear fusion

• Hydrogen reacts with Oxygen to create fire.

• Hydrogen atoms are forced together to create Helium

• Uranium and Plutonium split apart and release radiation.

• Helium atoms break down to make hydrogen

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Energy within the sun is produced through (a)  

• Nuclear fusion

• Nuclear fission

Answer explanation

Energy within the sun is produced through nuclear fusion, where hydrogen nuclei combine to form helium, releasing vast amounts of energy. Nuclear fission, on the other hand, involves splitting heavy nuclei and does not occur in the sun.

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is the primary fuel for nuclear fusion in stars?

• Hydrogen

• Helium

• Carbon

• Oxygen

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NGSS.HS-ESS1-1

Which of the following is a product of nuclear fusion in the sun?

• Carbon

• Helium

• Oxygen

• Nitrogen

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What condition is necessary for nuclear fusion to occur?

• Low temperature and high pressure

• High temperature and low pressure

• High temperature and high pressure

• Low temperature and low pressure

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NGSS.HS-ESS1-1

In which part of the sun does nuclear fusion primarily occur?

• Core

• Photosphere

• Corona

• Chromosphere

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NGSS.HS-ESS1-1

What is the main challenge in achieving controlled nuclear fusion on Earth?

• Finding enough fuel

• Containing the high temperatures

• Producing enough energy

• Cooling the reaction

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NGSS.HS-ETS1-3

Which element is commonly used in experimental fusion reactors on Earth?

• Uranium

• Deuterium

• Plutonium

• Thorium

What is the name of the process where two light atomic nuclei combine to form a heavier nucleus?

• Fission

• Fusion

• Radioactive decay

• Ionization

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8