WJEC Physics Unit 2 29 Nuclear Fusion H Deuterium nucleus 2 1 H Deuterium nucleus 2 1 Two deuterium nuclei approach one another The two nuclei collide Nuclear Fusion H nucleus ID: 920383
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Slide1
Nuclear Decay and Nuclear Energy
WJEC Physics Unit 2 - 2.9
Slide2Nuclear Fusion
H – Deuterium nucleus
2
1
H – Deuterium nucleus
2
1
Two deuterium nuclei approach one another
The two nuclei collide
Slide3Nuclear Fusion
H –nucleus
3
2
Neutron
The two nuclei collide
The two nuclei fuse (join) to form an isotope of helium and a neutron
Slide4Nuclear Fusion with decay equation
Fusion
Energy
Start animation
H
2
1
H
3
1
H
e
4
2
n
1
0
Slide5Nuclear Fission
Large nucleus (such as uranium -235 or plutonium -239)
Large nucleus splits into two smaller nucleus, often accompanied by several neutrons
Slide6Chain Reaction
Start reaction
Slide7Nuclear Reactor
Steam out to drive turbines
‘Cold’ water in from turbines
Control rods-
these absorb neutrons
Containment Building
Moderator – to slow the neutrons
Uranium fuel rods
Steel reactor vessel
Show water flow
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