| What are the 4 fundemental forces | Gravity
Strong
Weak
Electromagnetic |
| Explain the process of pair production | Photon interacts with a electron/ nucleas/ atom
Giving it energy
Energy of the photon is used to create a particle anti particle pair |
| In a Feyman diagram what is the name of the symbol used to represent the photons ? | Gamma (y) |
| Whats the equation for an electron proton collions | proton + electron -> neutron + neutrino |
| Describe the process of annihalation | When a particle and an antiparticle meet, they will annihilate each other, converting their total mass into photons |
| What are the reulting two particles of an annihaltion reaction? | 2 photons |
| What are the requirements for a 'pair production' reaction to happen | A photon with sufficient energy passing near a nucleus or an electron |
| What are exchange particles? | virtual particle that mediates the interaction between two other particles |
| Define a virtual particle | A short-lived subatomic particle
violates the principle of conservation of energy |
| Whats does the strong force do to the nucleas and describe how this is done? | Keeps the nucleas stable by acting on the quarks in the nucleas and counteracting the electromagnetic force of repulsion between protons |
| Describe the range of the strong force | Repulsive up to 0.5 fm
Attractive from 0.5-3 fm
Neglidgeable past 3 fm |
| Whats the equation for beta minus decay | Netron -> Proton + elctron + elctron anti neutrino |
| Whats the equation for beta plus decay | Proton -> neutron + poisitron + electron neutrino |
| What type of matter does the strong force affect? | Quarks |
| What type of particles does the weak force affect? | All |
| What type of particles does the electromagnetic force affect? | All charged particles |
| What type of particles does the gravitational force affect? | Particles with a mass |
| What is the name of the exchange particle for the strong force? | Gluons |
| What is the name of the exchange particles of the weak force | W and Z bosons |
| What is the name of the exchange particle of the electromagnetic force | Photons |
| What is the name of the exchange particle of gravitational force? | Gravitons |
| What are Feymin diagrams used to show clearly? | Electromagnetic interactions between subatomic particles |
| What group of particles feel the string force? | Hadrons |
| What type of interactive force is repsonsible for beta decay? | Weak |
| What force does the strong force counteract? | Electromagnetic force of repulsion between protons |
| Write the equation for electron capture | Electron + proton -> neutron + electron neutrino |
| What is electron capture? | A proton absorbing an electron |
| What causes electron capture | When an electron comes too close to a proton |
| Whats the feyman diagram for beta minus decay? | :) |
| Whats the feyman diagram for beta plus decay? | ;) |
| Whats the feyman diagram for elecron proton collision | // |
| Whats the feyman diagram for elecron capture | . |
| Whats the feyman diagram for the strong force | 9 |
