3F - 8. Fission and Fusion

What type of energy is released during radioactive decay?

• Chemical energy

• Thermal energy

• Electrical energy

• Kinetic energy

What is the process called when a nucleus splits into two lighter nuclei?

• Decay

• Fission

• Fusion

• Absorption

Which isotope of uranium is primarily used in nuclear reactors?

• Uranium-238

• Uranium-235

• Uranium-234

• Uranium-236

What material is used to slow down neutrons in a nuclear reactor?

• Boron

• Copper

• Graphite

• Lead

What is the main waste product of a fusion reactor?

• Helium

• Plutonium

• Uranium

• Carbon dioxide

What is the main danger of nuclear fallout?

• It is toxic

• It is explosive

• It is radioactive

• It is flammable

What is the energy-mass equivalence formula proposed by Einstein?

• E = mc^2

• E = mv^2

• E = 1/2 mv^2

• E = mgh

What type of nuclear bomb uses the process of fusion?

• Chemical bomb

• Fission bomb

• Fusion bomb

• Thermal bomb

What is the purpose of control rods in a nuclear reactor?

• To create steam

• To increase temperature

• To absorb neutrons

• To release energy

What happens to the mass of an object when it gains energy?

• It remains the same

• It decreases

• It fluctuates

• It increases