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SAT2物理词汇术语整理4

2019-09-29 08:20:15来源:网络

  为了帮助大家高效备考SAT,新东方在线SAT频道为大家带来*SAT2物理词汇术语整理4,希望对大家SAT备考有所帮助。更多精彩尽请关注新东方在线SAT频道!

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

  C

  Calorie

  The amount of heat needed to raise the temperature of one gram of water by one degree Celsius. 1 cal = 4.19 J.

  Celsius

  A scale for measuring temperature, defined such that water freezes at 0oC and boils at 100oC. 0oC = 273 K.

  Center of curvature

  With spherical mirrors, the center of the sphere of which the mirror is a part. All of the normals pass through it.

  Center of mass

  Given the trajectory of an object or system, the center of mass is the point that has the same acceleration as the object or system as a whole would have if its mass were concentrated at that point. In terms of force, the center of mass is the point at which a given net force acting on a system will produce the same acceleration as if the system’s mass were concentrated at that point.

  Centripetal acceleration

  The acceleration of a body experiencing uniform circular motion. This acceleration is always directed toward the center of the circle.

  Centripetal force

  The force necessary to maintain a body in uniform circular motion. This force is always directed radially toward the center of the circle.

  Chain reaction

  The particles and energy released by the fission or fusion of one atom may trigger the fission or fusion of further atoms. In a chain reaction, fission or fusion is rapidly transferred to a large number of atoms, releasing tremendous amounts of energy.

  Charles’s Law

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

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