CC Video Lesson on the Weak Force

What is the weak force responsible for?

• Changing quark color

• Holding electrons in orbit

• Changing quark flavor

• Holding quarks together

Which of the following is NOT a flavor of quark?

• Lemon

• Up

• Strange

• Charm

What particles are involved in the weak force interaction?

• Photons

• Higgs bosons

• Gluons

• W and Z bosons

What happens to a neutrino when it loses a positive W boson?

• It becomes a proton

• It becomes a photon

• It becomes an electron

• It becomes a neutron

What is the charge of an up quark?

• Neutral

• Highly positive

• Slightly negative

• Slightly positive

What is the range of the weak force?

• The size of a nucleus

• 0.1% of the diameter of a proton

• The size of a molecule

• The size of an atom

What is a neutron composed of?

• Two up quarks and one down quark

• Three down quarks

• One up quark and two down quarks

• Three up quarks

What does the weak force change in a quark?

• Its spin

• Its flavor

• Its mass

• Its charge

What is the result of a neutron decaying into a proton?

• The atom becomes an ion

• The atom becomes a photon

• The atom becomes a different element

• The atom becomes a molecule

Tags

NGSS.HS-PS1-8

What is the role of W and Z bosons in the weak force?

• They destroy particles

• They create new particles

• They convey forces between particles

• They hold quarks together