Fission Flashcards
1
Q
Nuclear fission
A
When a neutron bangs into a uranium 235 nucleus, it can cause it to split into 2 smaller nuclei and 2-3 neutrons. These neutrons bash into another uranium 235 nucleus and a chain reaction occurs.
2
Q
Moderators
A
Slow down neutrons
3
Q
Control rods
A
Absorb neutrons and can stop the chain reaction
4
Q
Advantages of nuclear energy
A
-no CO2
-large reserves of uranium
5
Q
Disadvantages of nuclear energy
A
-risk of nuclear accidents
-expensive