求问物理问题~谢谢。。。

yehoney

不知道以下问题该怎么作答。求教高手！！

1.
Einstein’sprinciple of relativity states that the law of physics is the same in everyinertial reference frame.
Does this meanthat the value of the variables must be the same in every reference frame?Discuss your answer with the help of an example.

2。     Whenwe say that moving clocks run slower compared to stationary clocks, does thismeans that something is not right happening physically in the moving clocks?Explain your answer.

3。    Ourmeasured length of a moving ruler is shorter compared to an identical stationaryruler, does this means that something is not right happening physically to themoving ruler? Explain your answer.

jueiri

你是undergrad 吗？这是modern physics。任何modern physics 课本都有答案。

yehoney

回复 2# jueiri

不好意思 因为没读过物理 突然被迫拿这科 所以不知从何下手
像我这种没底子的要时间去摸索 也希望可以从各位的作答中得到一些基本认识 谢谢

jueiri

Sorry...迟了回复.. 我的解释只供参考, 不一定对.

1. All physical laws are valid in each inertial frames of reference. The variables must be the same, provided that the frames of reference are comparable and identical. The variables, and even constants, are different in different frames of reference with different environment and external factors like temperature, pressure, pH, humidity, and external forces acting upon such as gravitational strength. For example, the gravity, g, at equator of the earth and at the poles are different in magnitude.

jueiri

2. Moving clock ticks slower than stationary clock. This is true particularly if the moving clock is observed by another observer in another frame of reference, not by the observer in the same frame of reference with the clock. There is nothing wrong physically happening to the moving clock. The observer in the same frame of reference with the clock should observe the clock to tick normally, just as another clock observed by another observer in an identical frame of reference, where the observer and the clock are in the same frame of reference.

jueiri

第三题和第二题差不多一样啦...

yehoney

回复 6# jueiri


    谢谢指教