Chem-L33-Nuclear Fusion and Fission-Video

What process does the sun use to generate its energy?

• Photosynthesis

• Chemical reaction

• Nuclear fusion

• Nuclear fission

What process is used by nuclear power plants to generate heat?

• Nuclear fission

• Nuclear fusion

• Chemical reaction

• Photosynthesis

What is the minimum mass required to sustain a nuclear chain reaction called?

• Minimum mass

• Maximum mass

• Critical mass

• Optimal mass

Which physical processes produce massive amounts of energy from atoms?

• Evaporation and condensation

• Fusion and fission

• Photosynthesis and respiration

• Erosion and sedimentation

What is the result of a neutron slamming into a large, somewhat unstable isotope?

• Fusion reaction

• Nuclear explosion

• Fission reaction

• Chemical reaction

What is the primary isotope used in the majority of nuclear power reactors today?

• Uranium-238

• Thorium-232

• Uranium-235

• Plutonium-239

What is the process where two atoms slam together to form a heavier atom?

• Nuclear fission

• Photosynthesis

• Nuclear fusion

• Chemical reaction

What is the energy equivalent of approximately one ton of deuterium?

• 29 quadrillion tons of coal

• 29 million tons of coal

• 29 billion tons of coal

• 29 trillion tons of coal

What is the temperature required to initiate fusion reactions comparable to the interior of the sun?

• 1.5 x 10^27 Kelvin

• 1.5 x 10^37 Kelvin

• 1.5 x 10^17 Kelvin

• 1.5 x 10^7 Kelvin

What is the main challenge in controlling and sustaining fusion reactions to generate electricity?

• All of the above

• High cost

• High temperature

• High pressure