Particles High Energy

Where is CERN located? (Pick all that apply)

• France

• Switzerland

• United States

• England

Is the atom fundamental?

• No, since composed of nucleus and electrons.

• Yes, it is named after the atomos.

• No, since it is smaller than a proton.

• No, since it has charge

Is the nucleus fundamental?

• No, because the two parts of the nucleus, (protons and neutrons), are both smaller than the nucleus.

• Yes, it is the fundamental part of the atom

• No, because it contains electrons

• Only yes for Hydrogen.

Are electrons fundamental?

• Yes, scientists have not proven a way to reduce an electron to smaller components.

• Yes, electrons are leptons which (along w quarks and force particles) cannot be reduced to smaller parts.

• No, because they have constituent parts.

• No, because they are outside of the atom.

How big is the large ring at CERN?

• 27 km in circumference.

• 27 km in radius.

• 17 km in circumference.

• 17 km in radius.

Where is Fermilab located?

• Just West of Chicago.

• North of Pasedena

• In upper New York state

• Somewhere in Indiana

What are some characteristics of neutrinos?

• They are an elementary subatomic particle that belong to the family of particles called leptons.

• 3 types (“Flavors”)of neutrinos exist, and each type is related to a charged particle (The electron,the muon, and the tau), and they all seem to be stable.

• Neutrinos are similar to electrons, except neutrinos do not carry electric charge.

• Neutrinos have partial charge, of either 1/3 or 2/3 charge.

What is the quark content of a proton?

• 2 up and 1 down

• 1 up and 2 down

• 1 up and 1 down

• 3 up

What is the quark content of a netron?

• 2 down 1 up

• 2 up and 1 down

• 1 up and 1 down

• 3 down

There are 2 classes of hadrons. What are they called?

• Baryons and mesons

• Protons and Neutrons

• Leptons and Bosons

• Quarks and netrinos