下面为大家整理的是以字母B开头的SAT2物理单词，内容非常丰富，是由英文解释的。记忆SAT2物理单词是大家备考SAT2物理考试的前提条件，下面我们就一起来看看这些SAT2物理专业单词的具体解析吧。

　　Basis vector

　　A vector of magnitude 1 along one of the coordinate axes. Generally, we take the basis vectors to be and , the vectors of length 1 along the x- and y-axes, respectively.

　　Beats

　　When two waves of slightly different frequencies interfere with one another, they produce a “beating” interference pattern that alternates between constructive (in-phase) and destructive (out-of-phase). In the case of sound waves, this sort of interference makes a “wa-wa-wa” sound, and the frequency of the beats is equal to the difference in the frequencies of the two interfering waves.

　　Beta decay

　　A form of radioactive decay where a heavy element ejects a beta particle and a neutrino, becoming a lighter element in the process.

　　Beta particle

　　A particle, identical to an electron. Beta particles are ejected from an atom in the process of beta decay.

　　Bohr atomic model

　　A model for the atom developed in 1913 by Niels Bohr. According to this model, the electrons orbiting a nucleus can only orbit at certain particular radii. Excited electrons may jump to a more distant radii and then return to their ground state, emitting a photon in the process.

　　Boiling point

　　The temperature at which a material will change phase from liquid to gas or gas to liquid.

　　Boyle’s Law

　　For a gas held at a constant temperature, pressure and volume are inversely proportional.

　　以上就是关于SAT2物理单词的全部内容，是以B开头的。这些单词并没有汉语解释，所列的英语解释可以帮助大家更好的理解和记忆这些单词的含义和用法，帮助大家在考试中进行答题。大家在记忆SAT单词的时候，最常见的方法就是按照字母的顺序进行，这样不容易漏掉。

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