SAT2物理考试常用术语(18)-sat培训

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　　济南新航道为考生指导SAT考试并且为需要的学子提供SAT培训。SAT备考尤其重要，下面我们为考生整理了一些关于SAT2物理常用术语，希望帮助考生备考SAT提供一些帮助和借鉴。

 

 

 

　　The following list defines all of the bold-faced words you encountered as you read this book.

 

 

 

　　N

 

 

 

　　Neutrino

 

 

 

　　An almost massless particle of neutral charge that is released along with a beta particle in beta decay.

 

 

 

　　Neutron

 

 

 

　　A neutrally charged particle that, along with protons, constitutes the nucleus of an atom.

 

 

 

　　Neutron number

 

 

 

　　The number, N, of neutrons in an atomic nucleus.

 

 

 

　　Newton

 

 

 

　　A unit of force: 1 N is equivalent to a 1 kg · m/s2.

 

 

 

　　Newton’s First Law

 

 

 

　　An object at rest remains at rest, unless acted upon by a net force. An object in motion remains in motion, unless acted upon by a net force.

 

 

 

　　Newton’s Law of Universal Gravitation

 

 

 

　　The force of gravity, F, between two particles of mass and , separated by a distance r, has a magnitude of , where G is the gravitational constant. The force is directed along the line joining the two particles.

 

 

 

　　Newton’s Second Law

 

 

 

　　F = ma. The net force, F, acting on an object causes the object to accelerate, a. The magnitude of the acceleration is directly proportional to the net force on the object and inversely　proportional to the mass, m, of the object.

 

 

 

　　上面就是我们列举的SAT2物理常用术语，大家在备考SAT一定要对词汇方面有更多更加详细的准备。最后，提醒大家，在备考时一定要自己多查看一些资料以及相关讯息，这样考试的时候就能轻松应对。祝各位考生考出好成绩。
 

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