1.4 Particles and Anti particles

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  • Created by: mugmaniac
  • Created on: 26-09-22 11:04
What happens when anti matter and matter meet?
They destroy each other and radiation is released.
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What is positron emission?
It is a beta plus particle and it is an antiparticle so it carries a positive charged neutrino is also unchanged is emitted.
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what was the theory about rest energy being directly linked with rest mass?
E = mc^2
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What was Dirac's Theory?.
- Annihilates the particle and itself if they meet, converting their total mass into photons.
- Has exactly the same rest mass
- Exactly opposite charge to the particle if it has a charge.
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How do you find the energy from rest mass energy and kinetic energy.
E = mc^2+ke
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What is pair production?
It is when a photon produces an anti particle and a particle when interacting with a nucleus.
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What is Annihilation?
It is when an anti particle and a particle meets each other and annihilates each other producing 2 photons.
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What is 1 MeV (Million electron volts) = to?
1.60 x 10^-13
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What is the equation of minimum of each photon produced?
hf(min) = E>0
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What is the equation of each photon needed to make 2 particles?
hfmin = 2E>0
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Why sometimes a photon cant create an antiproton and proton pair?
the photon doesn't have enough total energy to make the minimum energy for proton.
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What is the Anti particle of a electron?
Positron
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What is the Anti particle of a neutron?
antineutron
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What is the Anti particle of a neutrino?
antineutrino
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What is the Anti particle of a electron?
positron
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what is the equation for calculating the wavelength?
Speed of light = Frequency x Wavelength
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What is the speed of light?
3x10^8
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Card 2

Front

What is positron emission?

Back

It is a beta plus particle and it is an antiparticle so it carries a positive charged neutrino is also unchanged is emitted.

Card 3

Front

what was the theory about rest energy being directly linked with rest mass?

Back

Preview of the front of card 3

Card 4

Front

What was Dirac's Theory?.

Back

Preview of the front of card 4

Card 5

Front

How do you find the energy from rest mass energy and kinetic energy.

Back

Preview of the front of card 5
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