SAT2物理专业词汇F.

2017-08-06 作者： 321阅读

　　下面为大家整理的是关于SAT2物理专业词汇中以字母F开头的词汇，后面都附有详细的英语解析。SAT2物理考试的词汇量相对来说很少，对大家的备考要求也不是那么高。所以记忆这些最基本的专业词汇还是很有必要的。

　　Faraday’s Law

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　　A law, | | = , which states that the induced emf is the change in magnetic flux in a certain time.

　　First Law of Thermodynamics

　　Essentially a restatement of energy conservation, it states that the change in the internal energy of a system is equal to the heat added plus the work done on the system.

　　Focal length

　　The distance between the focal point and the vertex of a mirror or lens. For concave mirrors and convex lenses, this number is positive. For convex mirrors and concave lenses, this number is negative.

　　Focal point

　　The point of a mirror or lens where all light that runs parallel to the principal axis will be focused. Concave mirrors and convex lenses are designed to focus light into the focal point. Convex mirrors and concave lenses focus light away from the focal point.

　　Force

　　A push or a pull that causes an object to accelerate.

　　Free-body diagram

　　Illustrates the forces acting on an object, drawn as vectors originating from the center of the object.

　　Frequency

　　The number of cycles executed by a system in one second. Frequency is the inverse of period, f = 1/T. Frequency is measured in hertz, Hz.

　　Frictional force

　　A force caused by the roughness of two materials in contact, dormations in the materials, and a molecular attraction between the materials. Frictional forces are always parallel to the plane of contact between two surfaces and opposite the direction that the object is being pushed or pulled.

　　Fundamental

　　The standing wave with the lowest frequency that is supported by a string with both ends tied down is called the fundamental, or resonance, of the string. The wavelength of the fundamental is twice the length of the string, .

　　以上就是以字母F开头的SAT2物理专业词汇的全部内容，记忆和熟悉这些词汇对于大家更好的掌握自己的SAT2物理考试很有帮助。大家可以在备考SAT2物理考试的时候，进行适当的参考和借鉴。

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