Topic 4- motions of particles Flashcards
1
Q
velocity is always
A
changing
2
Q
charged particles are affected by
A
a magnetic field
3
Q
a cyclotron is a
A
circular particle accelerator
4
Q
proton enrichment forms isotopes that
A
emit positrons
5
Q
particle accelerators help scientists find out about
A
the universe
6
Q
momentum is always
A
conserved
7
Q
when ke and momentum is conserved
A
elastic
8
Q
when only momentum is conserved
A
inelastic
9
Q
when a particle meets its antiparticle the result is
A
annihilation
10
Q
annihilation of a positron and an electron produces
A
gamma ray radiatino
11
Q
energy =
A
mass X c squared (speed of light)
12
Q
PET scanning involves
A
positron and electron annihilation
