Particles and antiparticles Flashcards
1
Q
What are quarks
A
Fundamental particles
2
Q
Does the antiparticle have a different mass as its corresponding particle
A
No
3
Q
What did Carl Anderson discover and when
A
Discovered the positron in 1932, USA
4
Q
What are the comparisons between particles and antiparticles charges
A
Equal (in value) but opposite (+/-)
5
Q
Are all neutral particles and their antiparticles identical
A
No
Some are and others aren’t
6
Q
An unstable particle and its antiparticle have the same…
A
Lifetime
7
Q
Where are antiparticles found
A
- High-energy collision in experiments
- Interactions with cosmic rays
- Radioactive decay
8
Q
What isotopes naturally undergo positron decay
A
Potassium and carbon
9
Q
What is an electron-volt
A
A small unit of energy
10
Q
What unit is an electron-volt
A
Joules (J)
