Describe the four fundamental forces and the exchange particles associated with them.
Describe the force which holds the quarks together. What is a gluon?
Describe the intermediate vector bosons and their role in the weak interaction.
What kind of experiment led to the discovery of the W and Z vector bosons?
It is now said that electroweak unification has been achieved. What does that mean?
What progress has been made toward "grand unification"? What does that phrase mean?
Homework set #18