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How many fundamental forces are there? Can you roughly compare their strengths and ranges? What particles are involved in exchange?
共有几种基本力？你能大致比较它们的强度和作用范围吗？参与交换的粒子有哪些？
What are quarks and leptons?
夸克和轻子是什么？
How many quarks in a proton? a meson?
质子中有几个夸克？介子呢？
Has anyone ever seen a quark?
有人见过夸克吗？
Some background classical physics concepts you will need:
您将需要的一些经典物理概念：
How do you calculate the electric potential energy of an electron in the vicinity of a nucleus?
如何计算电子在原子核附近处的电势能？
How do you calculate the radius of curvature of a charged particle in a magnetic field?
如何计算带电粒子在磁场中的曲率半径？
Given kinetic energy in electron volts, how do you calculate the velocity of a particle?
已知粒子的动能为电子伏特，如何计算其速度？
What is meant by the rest mass energy of a particle and how do you calculate it? Why is the rest mass energy of an alpha particle less than the sum of the rest mass energies of its constituents?
什么是粒子的静止质量能量，如何计算它？为什么α粒子的静止质量能量小于其构成粒子的静止质量能量之和？
How do you account for the enormous energy release from nuclear fission and fusion?
如何解释核裂变和核聚变所释放的巨大能量？
Homework set #1
第一套作业 |