Difference between revisions of "Annihilation"
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==Key Stage 5== | ==Key Stage 5== | ||
===Meaning=== | ===Meaning=== | ||
| − | '''Annihilation''' is the process in which [[matter]] and [[antimatter]] interact converting all their [[Rest Mass|rest mass]] into [[energy]] resulting in a pair of [[Gamma | + | '''Annihilation''' is the process in which [[matter]] and [[antimatter]] interact converting all their [[Rest Mass|rest mass]] into [[energy]] resulting in a pair of [[Gamma-ray|gamma ray]] [[photon]]s being emitted in opposite directions. |
===About Annihilation=== | ===About Annihilation=== | ||
: '''Annihilation''' occurs when [[particle]]s of [[matter]] and [[antimatter]] interact at extremely close range. | : '''Annihilation''' occurs when [[particle]]s of [[matter]] and [[antimatter]] interact at extremely close range. | ||
| − | : During '''annihilation''' the total [[Rest Mass|rest mass]] of, as well as their [[Kinetic Energy|kinetic energy]] results in the production of two [[Gamma | + | : During '''annihilation''' the total [[Rest Mass|rest mass]] of, as well as their [[Kinetic Energy|kinetic energy]] results in the production of two [[Gamma-ray|gamma ray]] [[photon]]s. |
| − | : In '''annihilation''' [[Conservation of Momentum|conservation of momentum]] is conserved due to the [[momentum]] of the two [[Gamma | + | : In '''annihilation''' [[Conservation of Momentum|conservation of momentum]] is conserved due to the [[momentum]] of the two [[Gamma-ray|gamma ray]] [[photon]]s travelling in opposite directions. |
===Equation=== | ===Equation=== | ||
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<math>E_0</math> = Rest Mass Energy of each particle | <math>E_0</math> = Rest Mass Energy of each particle | ||
| − | <math>hf</math> = The [[energy]] of one [[Gamma | + | <math>hf</math> = The [[energy]] of one [[Gamma-ray|gamma ray]] [[photon]] emitted |
<math>h</math> = [[Planck's Constant]] | <math>h</math> = [[Planck's Constant]] | ||
<math>f</math> = The [[frequency]] of the emitted [[photon]] | <math>f</math> = The [[frequency]] of the emitted [[photon]] | ||
Revision as of 18:31, 23 January 2021
Key Stage 5
Meaning
Annihilation is the process in which matter and antimatter interact converting all their rest mass into energy resulting in a pair of gamma ray photons being emitted in opposite directions.
About Annihilation
- Annihilation occurs when particles of matter and antimatter interact at extremely close range.
- During annihilation the total rest mass of, as well as their kinetic energy results in the production of two gamma ray photons.
- In annihilation conservation of momentum is conserved due to the momentum of the two gamma ray photons travelling in opposite directions.
Equation
\(2E_0 = 2hf\)
Where
\(E_0\) = Rest Mass Energy of each particle
\(hf\) = The energy of one gamma ray photon emitted
\(h\) = Planck's Constant