Topic 10 Quiz

Which one of the following statements about nuclear energy is true?
1. It gives less energy than chemical energy.
2. It gives the same amount of energy as chemical energy.
3. It gives more energy than chemical energy.
4. It gives no energy at all.
Uranium-235 is described as a:
1. nitrile nucleus
2. fissile nucleus
3. fusile nucleus
4. tensile nucleus
Which one of the following particles is most likely to cause fission?
1. Neutron
2. Alpha Particle
3. Beta Particle
4. Ion
Under which one of the following circumstances is fission most likely to occur?
1. When the nucleus decays radioactively, emitting an alpha particle
2. When the nucleus decays radioactively, emitting an beta particle.
3. When the nucleus is exposed to a gamma ray.
4. When a neutron is incorporated into the nucleus.
Fission occurs when:
1. a slow neutron is incorporated into a fissile nucleus
2. a fast neutron passes through a fissile nucleus.
3. a very slow neutron bounces off a fissile nucleus.
4. when a fissile nucleus decays radioactively.
When two small nuclei come together, this is called:
1. fission
2. fussion
3. fusion
4. fashion
Which one of these descriptions is true of a deuterium atom?
1. It is a hydrogen nucleus consisting of one proton.
2. It is a hydrogen atom consisting of one proton and one electron.
3. It is a hydrogen atom consisting of one proton, one neutron and one electron.
4. It is a hydrogen atom consisting of one proton, one neutron and two electrons.
Which one of these best describes fusion.
1. Two hydrogen atoms come together to form a diatomic molecule of hydrogen.
2. A deuterium atom and tritium atom come together to form a diatomic molecule of "heavy" hydrogen.
3. Two hydrogen nuclei come together to form an isotope of helium that has no neutrons.
4. A deuterium nucleus and tritium nucleus come together to form a helium nucleus.
Why is nuclear fusion difficult to achieve?
1. The reactants are very unreactive.
2. Very high temperatures are needed.
3. Very strong acids are needed.
4. Fusion only occurs in the presence of special catalysts.
Where are fusion processes found?
1. In the cylinder of a petrol engine.
2. In a reactor.
3. In a star
4. In a furnace