Antiparticles and Pair Production

HideShow resource information
  • Created by: tahliaD
  • Created on: 13-10-15 13:10
What is the antiparticle of an electron?
Positron
1 of 28
What is rest energy?
The energy of a resting/immobile particle
2 of 28
What is rest energy measured in?
Mev
3 of 28
True or False- Energy can be turned into mass
True
4 of 28
True or Flase- Mass can be turned into energy
True
5 of 28
What is the basic definition of Pair Production?
When energy is converted into mass
6 of 28
What two types of matter are produced during Pair Production?
Matter and Antimatter
7 of 28
How much of each is created?
Equal amounts
8 of 28
How much energy needs to be present for Pair Production to take place?
Enough to produce the mass of the matter
9 of 28
Why must a particle's antiparticle also be produced during pair production?
Certain quantities must be conserved
10 of 28
Why do proton collisions require a lot of energy?
Protons repel eachother so a lot of energy is required to overcome this elecromagnetic force
11 of 28
Why do proton collisions produce a lot of energy?
The energy supplied in order for the collision to occur is released upon impact
12 of 28
What type of energy is required in proton collisions?
Kinetic energy
13 of 28
Define 'Photon'
Packets of EM waves
14 of 28
What do photons produce during Pair production?
an electron-positron pair
15 of 28
When do electron-positron pair usually occur?
When a photon passes near a nucleus
16 of 28
Particles produced in a detector curve do what and why?
Curve away from eachother in opposite direction because they are in an applied magnetic field with opposite charges
17 of 28
What is the minimum energy required for pair production?
The sum rest energy of the particles involved
18 of 28
Define rest energy
The total amount of energy that would be produced if a particle's mass is converted into energy
19 of 28
What does pair production always produce?
A particle-antiparticle pair
20 of 28
What is the symbol for the rest energy of a particle/antiparticle?
Eo
21 of 28
What is the rest energy of a particle-antiparticle pair?
2Eo
22 of 28
Give the equation for finding the minimum energy required for pair production?
Emin=2Eo
23 of 28
What is Emin measured in?
Mev
24 of 28
What is Eo measured in?
Mev
25 of 28
What is the only type of photon which has enough energy to produce an electron-positron pair?
A gamma ray photon
26 of 28
Why is an electron-positron pair the most common pair produced?
They have a low mass, meaning that they have a low rest energy so less energy is needed for pair production to happen
27 of 28
How do you convert Mev in J?
Times the Mev 1*10^6 to get ev then multiply this by 1.6*10^-19
28 of 28

Other cards in this set

Card 2

Front

What is rest energy?

Back

The energy of a resting/immobile particle

Card 3

Front

What is rest energy measured in?

Back

Preview of the front of card 3

Card 4

Front

True or False- Energy can be turned into mass

Back

Preview of the front of card 4

Card 5

Front

True or Flase- Mass can be turned into energy

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Particle physics resources »