Question

1. what is nuclear fission? a. the process of combining two small atoms b. the process of splitting a large atom into smaller atoms c. the process of creating energy from chemical reactions d. the process of converting matter into antimatter 2. einsteins famous equation e = mc² relates: a. energy and temperature b. mass and velocity c. energy and mass d. charge and time 3. compared to chemical reactions, the energy released in nuclear fission is: a. about the same b. slightly more c. at least a million times more d. less, but more controlled 4. what is the primary fuel used in most nuclear fission reactors? a. helium b. plutonium c. hydrogen d. uranium 6. the suns energy is primarily produced by: a. nuclear fission b. chemical reactions c. nuclear fusion d. radioactive decay 7. approximately what percentage of the worlds electricity is produced by nuclear reactors? a. 5% b. 14% c. 30% d. 50% 8. what is the main challenge in harnessing nuclear fusion for electricity production? a. lack of fuel sources b. insufficient energy output c. maintaining high temperatures while containing the reaction d. public opposition to fusion technology 9. in nuclear power plants, the energy from fission is primarily used to: a. directly power electrical generators b. create steam to turn turbines c. heat homes in nearby areas d. produce radioactive waste

Explanation:

1. Nuclear fission is the process of splitting a large atom into smaller atoms.
2. Einstein's equation E = mc² relates energy and mass.
3. Nuclear reactions release much more energy than chemical reactions, at least a million - times more.
4. Uranium is the primary fuel used in most nuclear fission reactors.
5. The Sun's energy is primarily produced by nuclear fusion.
6. Approximately 14% of the world's electricity is produced by nuclear reactors.
7. The main challenge in harnessing nuclear fusion for electricity production is maintaining high temperatures while containing the reaction.
8. In nuclear power plants, the energy from fission is primarily used to create steam to turn turbines.

Answer:

1. d. The process of splitting a large atom into smaller atoms
2. b. Energy and mass
3. c. At least a million times more
4. c. Uranium
5. b. Nuclear fusion
6. b. 14%
7. c. Maintaining high temperatures while containing the reaction
8. b. Create steam to turn turbines