7.3 The Standard Model

In the standard model, the particle considered to be an elementary particle is a(n)

• proton
• neutron
• electron
• alpha particle

All of the following are quarks except

• strange

• bottom

• charmed

• spark

These are the category of hadrons that contain three quarks. This distinguishes them from mesons, which contain two (1 quark and 1 antiquark).

• Gluons

• Electrons

• Leptons

• Baryons

Bonus: Which particle has electric charge of 2/3?

• up quark

• down quark

• strange

• kaon

Name given for particles that have the same mass but all other properties are opposite.

• anti-matter

• anti-particles

• annihilate

• dark matter

Name for all composite particles that are made out of quarks.

• hadron

• lepton

• boson

• meson

What is the name of a particle/hadron where a quark combines with an anti-quark?

• quark

• lepton

• boson

• meson

What is the electric charge of the proton?

• + 1

• 0

• - 1

• can’t tell

What is the name of the particle exchanged in the electromagnetic interaction?

• Z⁰

• W⁺

• W^-

• photon

Which is not the name of a particle exchanged in the weak interaction?

• Z⁰

• W⁺

• W^-

• gluon