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Physics AS - Unit 1 - Particles,
Quantum Phenomena and Electricity
- Revision Notes
Particle Physics
Inside the Atom
· Electron (negatively charged) in shells and subshells around nucleus
· Nucleus composing of protons (positively charged) and neutrons
· Nucleons ­ protons and neutrons
· Coulomb (C) ­ Unit of…

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infinite range (however reduces in strength according the inverse square law). At an atomic
scale it has negligible influence, as it is the weakest fundamental force in the universe.
Gravitation is mediated by the graviton (undiscovered) o Electromagnetic Force ­ This force acts
between any charged particles. It can
either…

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electromagnetic decay. The weak interaction is mediated by W and Z Bosons (elemental
particles) o Strong Interaction ­ This force is observable in two areas. On the smaller scale the
strong interaction is responsible for holding quarks together in hadrons, on the larger scale it
binds protons and neutrons together…

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· Proton decays into a neutron emitting an electron neutrino and a positron:

p n+v
e

+e+


-
Decay
· Neutron decays into a proton emitting an electron and an electron anti--neutrino:

n p+V
e
+e-
Note: bar above electron neutrino indicated
that it is the anti- particle counterpart, the…

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Page 8

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Electromagnetic Waves -- Photons
· The speed of the wave is given by: c = f


· Frequency by:

c
=f
· Photons are emitted when:
o Fast moving electron
stopped o Electron "jumps" from
higher quantum level (shell) in an atom to a lower one
· The energy of…

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is an electron anti--neutrino) with the
exception of the positron (anti--electron), which is denoted by e+


· Rest Energy (energy when stationary) of a particle can be found by

E = mc2
, where m is the mass of
the particle when stationary and c is the speed of light…

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princealiraza46

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Thank You Very Much

Hattie

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these are really good :) thank you ! 


Craig

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Cheers pal


 

Elena

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thank you! these are really helpful

Raj2512

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  • This is a very good resource. Very good summaries =) 

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Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
Physics AS - Unit 1 - Particles,
Quantum Phenomena and Electricity
- Revision Notes
Particle Physics
Inside the Atom
· Electron (negatively charged) in shells and subshells around nucleus
· Nucleus composing of protons (positively charged) and neutrons
· Nucleons ­ protons and neutrons
· Coulomb (C) ­ Unit of…

Page 3

Preview of page 3
infinite range (however reduces in strength according the inverse square law). At an atomic
scale it has negligible influence, as it is the weakest fundamental force in the universe.
Gravitation is mediated by the graviton (undiscovered) o Electromagnetic Force ­ This force acts
between any charged particles. It can
either…

Page 4

Preview of page 4

Page 5

Preview of page 5
electromagnetic decay. The weak interaction is mediated by W and Z Bosons (elemental
particles) o Strong Interaction ­ This force is observable in two areas. On the smaller scale the
strong interaction is responsible for holding quarks together in hadrons, on the larger scale it
binds protons and neutrons together…

Page 6

Preview of page 6
· Proton decays into a neutron emitting an electron neutrino and a positron:

p n+v
e

+e+


-
Decay
· Neutron decays into a proton emitting an electron and an electron anti--neutrino:

n p+V
e
+e-
Note: bar above electron neutrino indicated
that it is the anti- particle counterpart, the…

Page 7

Preview of page 7

Page 8

Preview of page 8
Electromagnetic Waves -- Photons
· The speed of the wave is given by: c = f


· Frequency by:

c
=f
· Photons are emitted when:
o Fast moving electron
stopped o Electron "jumps" from
higher quantum level (shell) in an atom to a lower one
· The energy of…

Page 9

Preview of page 9
is an electron anti--neutrino) with the
exception of the positron (anti--electron), which is denoted by e+


· Rest Energy (energy when stationary) of a particle can be found by

E = mc2
, where m is the mass of
the particle when stationary and c is the speed of light…

Page 10

Preview of page 10

Comments

princealiraza46

Report

Thank You Very Much

Hattie

Report

these are really good :) thank you ! 


Craig

Report

Cheers pal


 

Elena

Report

thank you! these are really helpful

Raj2512

Report

  • This is a very good resource. Very good summaries =)