Question 1
Nuclear processes which involved the splitting of a heavy nucleus into 2 nuclei with smaller mass numbers is called _____________.
Fusion
Nuclear Chain Reaction
Spent rods
Fission

Question 2
When U-235 absorbs a neutron and becomes the unstable nucleus of U-236, this is the beginning of a(n) _________________.
a chain reaction
Nuclear Fusion
spent rods
Exothermic reaction

Question 3
Nuclear power plants use the principle of ________________.
Exothermic Reactions
Spent Rods
Nuclear Fusion
Controlled Nuclear Fission

Question 4
Two serious negatives about nuclear power plants:
1. a potential meltdown of the plant releasing huge amounts of radiation
2. _________________
Hard to find safe nuclear waste disposal of radioactive materials that are radioactive for thousands of years
unleashed chain reactions
Nuclear Fusion
Critical Mass

Question 5
Biological effects of exposure to radiation include:
1. the penetrating ability of the radiation into tissues
2. ___________________________________
uncontrolled chain reactions
nuclear fission
nuclear fusion
The ionizing ability of radiation to affect cell functions