Difference between revisions of "Fundamental Interactions"
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===About Fundamental Interactions=== | ===About Fundamental Interactions=== | ||
| − | : The '''fundamental interactions''' can cause [[Subatomic Particle|subatomic particles]]s to change direction or change from one [[Subatomic Particle|subatomic particles]] into one or more other | + | : The '''fundamental interactions''' can cause [[Subatomic Particle|subatomic particles]]s to change direction or change from one [[Subatomic Particle|subatomic particles]] into one or more other [[Subatomic Particle|subatomic particles]]. |
: During the '''interactions''' certain properties of [[Subatomic Particle|subatomic particles]]s are conserved, including [[Conservation of Baryon Number|baryon number]], [[Conservation of Lepton Number|lepton number]], [[Electrical Charge|charge]] and [[strangeness]] (which is conserved in the [[Strong Nuclear Interaction|strong interaction]] but not conserved in the [[Weak Nuclear Interaction|weak interaction]]). | : During the '''interactions''' certain properties of [[Subatomic Particle|subatomic particles]]s are conserved, including [[Conservation of Baryon Number|baryon number]], [[Conservation of Lepton Number|lepton number]], [[Electrical Charge|charge]] and [[strangeness]] (which is conserved in the [[Strong Nuclear Interaction|strong interaction]] but not conserved in the [[Weak Nuclear Interaction|weak interaction]]). | ||
: The four '''fundamental interactions''' are: | : The four '''fundamental interactions''' are: | ||
:*[[Strong Nuclear Interaction]] - Experienced only by [[hadron]]s and responsible for holding [[quark]]s together and holding [[proton]]s and [[neutron]]s together in the [[Atomic Nucleus|atomic nucleus]]. | :*[[Strong Nuclear Interaction]] - Experienced only by [[hadron]]s and responsible for holding [[quark]]s together and holding [[proton]]s and [[neutron]]s together in the [[Atomic Nucleus|atomic nucleus]]. | ||
:*[[Weak Nuclear Interaction]] - Experienced by [[hadron]]s and [[lepton]]s and responsible for [[Radioactive Decay|decay]] of [[Subatomic Particle|subatomic particles]]. | :*[[Weak Nuclear Interaction]] - Experienced by [[hadron]]s and [[lepton]]s and responsible for [[Radioactive Decay|decay]] of [[Subatomic Particle|subatomic particles]]. | ||
| − | :*[[Electromagnetic Interaction]] - Experienced by [[particle]]s with [[Electrical Charge|charge]] | + | :*[[Electromagnetic Interaction]] - Experienced by [[particle]]s with [[Electrical Charge|charge]]. This '''interaction''' is referred to as 'long range' as extends far beyond the range of [[Atomic Nucleus|atomic nuclei]] and is observed on macroscopic scales, but can be shielded by [[Dielectric|dielectric materials]]. |
| − | :*[[Gravitational Interaction]] - Experienced by all [[particle]]s with [[mass]]. | + | :*[[Gravitational Interaction]] - Experienced by all [[particle]]s with [[mass]]. This '''interaction''' is extremely weak on the scale of [[Relative Atomic Mass|atomic masses]] but is 'long range' and cannot be shielded, so accumulates with large numbers of [[atom]]s to be observable at macroscopic scales. |
Latest revision as of 08:37, 18 July 2019
Key Stage 5
Meaning
The fundamental interactions are the 4 ways in which subatomic particless may affect one another.
About Fundamental Interactions
- The fundamental interactions can cause subatomic particless to change direction or change from one subatomic particles into one or more other subatomic particles.
- During the interactions certain properties of subatomic particless are conserved, including baryon number, lepton number, charge and strangeness (which is conserved in the strong interaction but not conserved in the weak interaction).
- The four fundamental interactions are:
- Strong Nuclear Interaction - Experienced only by hadrons and responsible for holding quarks together and holding protons and neutrons together in the atomic nucleus.
- Weak Nuclear Interaction - Experienced by hadrons and leptons and responsible for decay of subatomic particles.
- Electromagnetic Interaction - Experienced by particles with charge. This interaction is referred to as 'long range' as extends far beyond the range of atomic nuclei and is observed on macroscopic scales, but can be shielded by dielectric materials.
- Gravitational Interaction - Experienced by all particles with mass. This interaction is extremely weak on the scale of atomic masses but is 'long range' and cannot be shielded, so accumulates with large numbers of atoms to be observable at macroscopic scales.