A-Level物理是绝大数同学都会选择的考试科目,同时也是很多知名大学要求的必考学科,那么对于物理学科的学习,同学们首先要清楚A-Level 物理自身独有的特点以及考试的重点,有针对性地复习备考,才能够收获满意的成绩。今天课窝考试网小编为大家整理了部分A-Level考试词汇辨析,一起学习吧。
Neutron,名词,中子,是一种组成原子(atom)的particle(粒子),与质子(proton)共同构成原子核(nucleus)。
举个例子,
Neutron star 中子星
例句:
The neutron is a subatomic particle, symbol n or n 0, with no net electric charge and a mass slightlylarger than that of a proton.Protons and neutrons constitute the nuclei of atoms.
nu·cle·ar
ADJECTIVE
adj.原子能的;核能的;核武器的;核子的
relating to the nucleus of an atom.
synonyms:
central · innermost · mid · middle · interior · nuclear · the center of · the middle of · theheart of
antonyms: outer·denoting, relating to, or powered by the energy released in nuclear fission or fusion.
"nuclear submarines" · "nuclear energy"
· denoting, possessing, or involving weapons using nuclear energy.
"nuclear nations" · "a nuclear bomb"
Nuclear作为形容词,用来修饰名词,在核物理这部分可以组的说法很多,
举个例子,
Nuclear physics 核物理(指核物理这个物理分支)
Nuclear power 核能
Nuclear decay 核衰变
Nuclear fusion 核聚变
Nuclear fission 核裂变
Nuclear radiation 核辐射
Nuclear reaction 核反应
例句:
A nuclear weapon is an explosive device that derivesits destructive force from nuclear reactions, eitherfission (fission bomb) or a combination of fission andfusion (thermonuclear weapon).
nu·cle·us
n.核;核心;细胞核;原子核
复数 nuclei
NOUN
the central and most important part of an object, movement, or group, forming the basis for its activityand growth.
"the nucleus of a film-producing industry"
synonyms:
core · center · central part · most important part · heart · nub · hub · middle · midpoint · eye · kernel · focus · focal point · pivot · crux · navel · omphalos
· physics
the positively charged central core of an atom, consisting of protons and neutrons and containingnearly all its mass.
· biology
a dense organelle present in most eukaryotic cells, typically a single rounded structure bounded bya double membrane, containing the genetic material.
· anatomy
a discrete mass of gray matter in the central nervous system.
· astronomy
the solid part of the head of a comet.
Nucleus,名词,有核心的意思,在物理上指center,中心部位,比如说,原子核处在原子的中心,而原子核就是nucleus,此处nucleus指的是一种particle(粒子)
复数为nuclei,意思是多个原子核,这个单词用的也很多。
例句:
The nucleus is the small, dense region consisting of protonsand neutrons at the center of an atom.
nu·cle·on
n.【化,物】核子
NOUN
physics
a proton or neutron.
复数:nucleons;
Nucleon,名词,核子,也是一种particle(粒子)。
核子(nucleon)分两种,proton(质子)或neutron(中子)。
举个例子,原子(atom)由原子核(nucleus)+核外电子(electrons)组成,原子核由1个或多个核子(nucleon)组成,等同于原子核由质子或质子和中子组成。
mass number=nucleon number= No. of protons + No.of neutrons
以上就是小编为大家整理的关于alevel物理考试中常见易混淆词汇辨析,希望对大家有所帮助。更多alevel成绩有效期、alevel培训机构等问题可以咨询我们。
在A-Level英语复习中,越来越多的同学将外刊阅读作为一个重要的部分。既然花时间来读外刊,就要把它读懂。不能读读原文,然后看看译文,就认为自己读懂了。另外文章不是读完扔一边就算了,还要花时间时常朗读巩固复习,估计大家都没有过目不忘的本领。今天课窝考试网小编就说说关于新闻稿里出现的疑难杂词,一起学习吧。