Which of the following is a fundamental particle of the universe?

• The proton
• The neutron
• The electron
• They all are fundamental particles

In our universe, bosons carry forces, fermions make up matter. This was from the TedEd lesson.

• True
• False

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 light, elementary particles that are not made up of quarks.

• Gluons

• Electrons

• Leptons

• Baryon

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

There are three families of leptons;

• electron, muon, and pi.

• electron, muon, and tau.

• electron, pi and tau.

• electron, pi and neutrino.

What is the standard model?

• It explains how particles interact. The model divides all matter into fermions (quarks and leptons) and bosons (exchange particles).

• It explains how atoms interact. The model divides all matter into fermions (quarks and leptons) and bosons (exchange particles).

• It explains how nuclei interact. The model divides all matter into fermions (quarks and leptons) and bosons (exchange particles).

• It explains how molecules interact. The model divides all matter into fermions (quarks and leptons) and bosons (exchange particles).

Why do the tubes in a LINAC get longer throughout the accelerator?

• So the particle can be accelerated

• So the polarity of the supply can be switch between each tube

• So the electric field can be kept constant

• So the frequency of the alternating supply can be kept constant

Why do are protons in particle accelerated to close to the speed of light in particle accelerators?

• To conserve momentum

• To create mini black holes

• So extra energy is available to create new mass

• Because time slows down close to the speed of light