7.3.b hadrons and conservation laws

These are the category of hadrons that contain three quarks.

• Gluons

• Electrons

• Leptons

• Baryons

• Mesons

Which particle has electric charge of 2/3?

• up quark

• down quark

• strange

• kaon

• positron

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

• baryon

What is the name(s) of the particle(s) exchanged in the electromagnetic interaction?

• Z⁰

• W⁺

• W^-

• photon

• gluon

Which of the following is(are) the name(s) of a particle exchanged in the weak interaction?

• Z⁰

• W⁺

• W^-

• gluon

• photon

What is the name(s) of the exchange particles of the strong interaction?

• gluon

• W+

• W-

• photon

• Z⁰

the lepton in a hydrogen atom

• electron
• neutron
• zero
• graviton
• baryon number

Which of the fundamental force(s) is primarily responsible for the attraction between protons and electrons in the atom?

• strong

• gravitational

• electromagnetic

• weak