Standard Model

How many types of quarks (not including antiquarks) are there?

• 4

• 5

• 6

• 8

Which of these particles is not a quark?

• tau

• up

• bottom

• strange

Which of the following is a lepton?

• up

• strange

• dizzy neutrino

• tau neutrino

Which type of particle is an electron?

• hadron

• baryon

• meson

• lepton

Which type of particle is a neutron?

• muon

• meson

• baryon

• lepton

What is the quark composition of a proton?

• udd

• uud

• scc

• ssc

Which family of particles is made up of three quarks?

• lepton

• hadron

• baryon

• meson

Which family of particles is made up of a quark antiquark pair?

• meson

• hadron

• baryon

• lepton

Which of these particles is a meson?

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

• proton
• neutron
• electron
• alpha particle