Difference between revisions of "Nuclear Fusion"
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: For a '''fusion''' [[Nuclear Reaction|reaction]] to occur the two [[Atomic Nucleus|nuclei]] must have enough [[Kinetic Energy Store|kinetic energy]] to overcome the [[Electrostatic Force|electrostatic force]] of repulsion between the [[Positive Charge|positively charged]] [[Atomic Nucleus|nuclei]]. | : For a '''fusion''' [[Nuclear Reaction|reaction]] to occur the two [[Atomic Nucleus|nuclei]] must have enough [[Kinetic Energy Store|kinetic energy]] to overcome the [[Electrostatic Force|electrostatic force]] of repulsion between the [[Positive Charge|positively charged]] [[Atomic Nucleus|nuclei]]. | ||
: To provide enough [[Kinetic Energy Store|kinetic energy]] to the [[Atomic Nuclei|nuclei]] the [[substance]] must be [[heat]]ed to a [[temperature]] of several million [[Degrees Celsius|degrees Celsius]]. | : To provide enough [[Kinetic Energy Store|kinetic energy]] to the [[Atomic Nuclei|nuclei]] the [[substance]] must be [[heat]]ed to a [[temperature]] of several million [[Degrees Celsius|degrees Celsius]]. | ||
+ | : '''Nuclear fusion''' occurs naturally in the centre of a [[Star]] due to the high [[temperature]]s and [[pressure]]. | ||
+ | : '''Nuclear fusion''' is possible in [[laboratory|laboratories]] on [[Earth]] but it cannot be sustained for long periods of [[time]] to produce enough [[energy]] to be useful as an [[Energy Resource|energy resource]]. | ||
+ | : '''Nuclear fusion''' in [[laboratory|laboratories]] on [[Earth]] must be done at much higher [[temperature]] than in the centre of [[Star]]s because the centre of [[Star]]s is a much higher [[pressure]] so [[Atomic Nucleus|nuclei]] collide more often. |
Revision as of 13:15, 11 March 2019
Key Stage 4
Meaning
Nuclear fusion is a process in which two small atomic nuclei join together to become a larger nucleus.
About Nuclear Fusion
- For a fusion reaction to occur the two nuclei must have enough kinetic energy to overcome the electrostatic force of repulsion between the positively charged nuclei.
- To provide enough kinetic energy to the nuclei the substance must be heated to a temperature of several million degrees Celsius.
- Nuclear fusion occurs naturally in the centre of a Star due to the high temperatures and pressure.
- Nuclear fusion is possible in laboratories on Earth but it cannot be sustained for long periods of time to produce enough energy to be useful as an energy resource.
- Nuclear fusion in laboratories on Earth must be done at much higher temperature than in the centre of Stars because the centre of Stars is a much higher pressure so nuclei collide more often.