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ScienceNuclearPowers
Integrated Physical Science Nuclea Test
| Question | Answer |
|---|---|
| What two things accompany nuclear reactions? | changesto the nucleus of an atom; very large amounts of energy |
| Waht makes a nucleus unstable? | when the nucleur and electrical forces are unbalanced, the nucleus of the atom is unstable |
| why does radioactive decay takes place? | to stabalize the nucleus |
| what happens when radioactive decay takes place | the nuclei of an atom breaking down into simpler atoms with simpler nuclei |
| what is the result f radioactive decay? | particles of energy are given off by the nucleus, making a new, lighter nucleus the identityl of the elementchanges when its nuclear make up changes |
| name two medical uses of radioactive isotopes | killing cnacer cells radioisotopes can show the flor of materials in biological processes |
| name a use of half-dating values | radioactive dating |
| what is the diference between nuclear fission and nuclear fusion? | nuclear fission is the splitting nucleus into smaller nuclei. nuclear fusion is the joining of smaller nuclei into one larger nucleus; release large amounts of energy. |
| the splitting nucleus into smaller nuclei. | nuclear fission |
| the joining of smaller nuclei into one larger nucleus; release large amounts of energy. | nuclear fusion |
| what is the process used in nuclear power plants to make electricity? | Nuclear Fission |
| why is nuclear power considered to be better than traditional methods od producing electricity? | |
| describe the overall process that nuclear power plants use to produce electricity | Uranium packaged into fuel rods uranium rods are surrounded by control rods fuel rods are out under water uranium fuel rods react and heat up water turns to steam, steam turns the turbine, turbine spins generator, generator produces electricity. |
| describe a nuclear meltdown | usually happens when there is a loss of coolant. it gets so hot that the fuel rods melt, |
| what is the worst nuclear meltdown in history | chernobyl |
| the most recent nuclear meltdown | japan |
| means dealing with the nucleus | nuclear |
| attractive forces that hold p+ and n0 together in the nucleus. | Nuclear Forces |
| takes place to stabilize the nucleus | radioactive decay |
| when a nucleus undergoes this process it is said to be .... | radioactive |
| radioactive isotopes or ........ have medical applications | radioisotopes |
| the time it takes for one half the amount of a radioactive substance to decay | half-life |
| absorb neutrons coming from uranium they control heat produced by uranium | control rods |
| how many meltdowns in ciilian plants | four |
| what process is responsible for providing nuclear power | nuclear fission |
| name a reason atomic energy is better than energy that we produce electricity | atomic energy is cleaner than other types |
| the word nuclear means | dealing with the nucleus |
Created by:
mewing207
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