How many different types of quarks are there?

• 6

• 5

• 4

• 3

What are hadrons made of?

• quarks

• protons and neutrons

• electrons, muons, and taos

• Fermions

Baryons are

• a type of hadron that is made of three quarks.

• a type of meson that is made of two quarks.

• a type of lepton like the electron and muon

• atoms.

What combination of quarks make up a proton?

• up, up, down

• down, down, up

• top, top, bottom

• strange, top, up

What combination of quarks makes up a neutron?

• up, up, down

• down, down, up

• top, top, bottom

• strange, charm, top

What combination of quarks makes up a neutron?

• up, up, down

• down, down, up

• top, top, bottom

• strange, charm, top

What is the most fundamental make up of physical matter?

• up quarks, down quarks, and electrons

• protons, neutrons, and electrons

• atoms

• molecules

An electron is an example of a lepton. What categorizes a particle as being a lepton?

• Leptons are not influenced by the strong force (no strong interactions).

• Leptons are not influenced by electromagnetic force (no E&M interactions).

• Leptons are not influenced by the weak force.

• Leptons are made of quarks.

Name the different type of quarks:

• up, down, bottom, top, strange, charm

• up, down, left, right, side to side

• north, south, east, west, up, down

• electron, muon, tao, electron-neutrino, muon-neutrino, tao-neutrino

What is the most famous lepton?

• muon

• up quark

• proton

• electron