Particle Physics

Particle Physics


You can continue your investigation of modern atomic theory by exploring the history and science of particle physics and the advent of the quantized atom, leading to the recent theory of the Standard Model. Use the resources on The Modern Theory student esheet to help you answer the questions on this sheet.

A Summary of Particle Physics

What questions did scientists seek to answer about the fundamental structure of matter by the mid-1930s?



How did the use of accelerators advance and propel the study of the subatomic world?



What was significant about the quark proposal of 1964?



In terms of particle forces and interactions, why has gravitational force been excluded from the Standard Model?



 Why are strong and weak interactions important?



In what sense is today’s Standard Model incomplete? How do particle physicists plan to answer the questions that remain?




Particle Physics Timeline

Which discoveries do you think are the most significant, interesting? Why?



Which discoveries do you think are the least significant, interesting? Why?



What inventions or benefits to society do you think subatomic discoveries like these are going to lead to?



What other kinds of subatomic discoveries do you think scientists might uncover in the years ahead?



What problems or dangers do you foresee coming from this level of high-powered, scientific investigation? Is the world better off not knowing how the subatomic world works? Why or why not?



How does learning the history of modern atomic theory help you in your scientific studies of the same subject?




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