北京新航道为考生指导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.

 

　　C

 

　　Coefficient of kinetic friction

 

　　The coefficient of kinetic friction, , for two materials is the constant of proportionality between the normal force and the force of kinetic friction. It is always a number between zero and one.

 

　　Coefficient of linear expansion

 

　　A coefficient that tells how much a material will expand or contract lengthwise when it is heated or cooled.

 

　　Coefficient of static friction

 

　　The coefficient of static friction, for two materials is the constant of proportionality between the normal force and the maximum force of static friction. It is always a number between zero and one.

 

　　Coefficient of volume expansion

 

　　A coefficient that tells how much the volume of a solid will change when it is heated or cooled.

 

　　Coherent light

 

　　Light such that all of the associated waves have the same wavelength and are in phase.

 

　　Collision

 

　　When objects collide, each object feels a force for a short amount of time. This force imparts an impulse, or changes the momentum of each of the colliding objects. The momentum of a system is conserved in all kinds of collisions. Kinetic energy is conserved in

elastic collisions, but not in inelastic collisions. In a perfectly inelastic collision, the colliding objects stick together after they collide.

 

　　Completely inelastic collision

 

　　A collision in which the colliding particles stick together.

 

　　Component

 

　　Any vector can be expressed as the sum of two mutually perpendicular component vectors. Usually, but not always, these components are multiples of the basis vectors, and ; that is, vectors along the x-axis and y-axis. We define these two vectors as the x- and y-

components of the vector.

 

　　Compression

 

　　An area of high air pressure that acts as the wave crest for sound waves. The spacing between successive compressions is the wavelength of sound, and the number of successive areas of compression that arrive at the ear per second is the frequency, or pitch, of the

sound.

 

　　Concave lens

 

　　Also called a diverging lens, a lens that is thinner in the middle than at the edges. Concave lenses refract light away from a focal point.

 

　　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。