Nuclear Processes and Forces

What is the process that fuels the sun and allows it to give off energy?

• Nuclear fission

• Nuclear fusion

• Chemical combustion

• Radioactive decay

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What is the force called that is given off by objects due to their electric charge?

• Gravitational force

• Magnetic force

• Coulomb force

• Nuclear force

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What happens to gas at the core of a star due to high pressure and temperature?

• It becomes a solid

• It becomes a plasma

• It evaporates

• It freezes

What type of nuclear fusion is common in our sun?

• Carbon fusion cycle

• Triple-alpha process

• Proton-proton fusion

• Neutron-neutron fusion

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What is the major type of nuclear fusion occurring in our sun?

• Deuterium-tritium fusion

• Proton-proton fusion

• Helium-helium fusion

• Carbon-nitrogen fusion

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What particles are formed when two hydrogen atoms initially collide in proton-proton fusion?

• Two protons and a neutron

• A helium-4 atom and a gamma ray

• A deuterium atom, a positron, and a neutrino

• A tritium atom and a neutron

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What is a positron?

• A particle with the same mass and charge as a proton

• A particle with the same mass and magnitude of charge as an electron but with a positive charge

• A charge-less particle with a mass of nearly zero

• A particle with a negative charge and no mass

What is the formula for energy according to Einstein's famous formula?

• E = mc^3

• E = mc^2

• E = mv^2

• E = mc

What is the speed of light in a vacuum according to Einstein's equation?

• 3 x 10^6 meters per second

• 3 x 10^8 meters per second

• 3 x 10^10 meters per second

• 3 x 10^12 meters per second

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How does nuclear fission differ from nuclear fusion?

• Fission involves combining atoms, while fusion involves splitting them

• Fission involves splitting atoms, while fusion involves combining them

• Fission and fusion both involve combining atoms

• Fission and fusion both involve splitting atoms

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