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Higher Physics > Particles > Flashcards

Particles Flashcards

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1
Q

What is a hadron?

A

Particles made of quarks

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2
Q

What is bayron?

A

A hadron made up of 3 quarks.

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3
Q

What is a meson?

A

A hadron made of a quark and an antiquark pair.

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4
Q

What is the exchange particle for electromagnetic force?

A

Photons.

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5
Q

What is the exchange particle for strong nuclear force?

A

Gluons.

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6
Q

What are the exchange particles for weak nuclear force?

A

W+Z bosons

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7
Q

What is a photon?

A

A photon is a boson and an exchange particle for electromagnetic force.

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8
Q

What is a gluon?

A

A gluon is a boson and is the exchange particle for strong nuclear force.

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9
Q

What are W and Z bosons?

A

W and Z bosons are bosons that are the exchange particle for weak nuclear force

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10
Q

What happens in alpha decay?

A

A nuclues releases an alpha particle and looses 4 mass and 2 from its atomic number.

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11
Q

What happens in beta decay?

A

When a nuclues releases a beta particle it’s mass number stays the same and its atomic number increases by 1.

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12
Q

What is beta decay evidence for?

A

The emission of beta particles is evedince for the existence of neutrinos.

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13
Q

What is evidence for the existence of neutrinos?

A

The emmison for beta particles in radioactive decay is evedince for the existence of neutrinos.

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14
Q

What happens in nuclear fission?

A

A large nuclei splits to create 2 smaller nuclei extra neurons and energy.

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15
Q

When is nuclear fission induced?

A

If a neutron causes it.

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16
Q

When is nuclear fission spontaneous?

A

When no neuron causes it.

17
Q

Name the quarks

A 
Up
Down
Charm
Strange
Top bottom
18
Q

Name the bosons

A

Photon
Z boson
W boson
Gluon

19
Q

Name the leptons

A 
Electron neutrino
Muon neutrino
Tau neutrino
Electron
Muon
Tau
20
Q

What are the fundamental forces

A

Electromagnetic
Strong nuclear
Weak nuclear

21
Q

What happens to the lost mass in nuclear reactions?

A

The lost mass is converted to energy

22
Q

What is threshold frequency?

A

The threshold frequency is the minimum frequency of photon required to eject an electron from the surface of a metal.

23
Q

What fundamental particle are electrons?

A

Leptons

24
Q

What is the symbol for work function?

A

hf0

25
Q

Can fundamental particles be subdivided?

A

No

26
Q

Why are alternating supply’s used in linear accelerators?

A

The particle is always accelerated in the same direction

27
Q

What would happen if plasma touched the sides?

A

It would cool down and the reaction would stop

28
Q

What are fermions?

A

Qaurks and leptons

29
Q

What are electrons?

A

Electrons are leptons and fermions

30
Q

What is an anti particle?

A

A particle that has the same mass as its matter counterpart but opposite charge.

Higher Physics (4 decks)

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