2019年物理碗竞赛真题分享 备考竞赛往年真题很重要

物理碗竞赛的时间越来越近了，下面我们就像来给大家分享物理碗竞赛真题，同学们一起来看看这些真题吧！

物理碗竞赛真题

A student generates a transverse periodic wave on a string. The wave travels away from the student  at a constant speed v. Which of the following changes by itself will increase the speed at which the  wave travels away from the student?

(A) The student could use the same string but increase the frequency at which they generate the  wave.  

(B) The student could use the same string but increase the wavelength of the waves they generate. 

(C) The student could use the same string but increase the amplitude of the waves they generate. 

(D) The student could use a string with the same length and tension, but greater linear density 

(E) The student could use the same string, but placed under greater tension.

A horizontal disk has a spring and a mass attached to a rod passing through  its center. The spring has a spring constant of k and the attached mass is m.  When the disk is not rotating, the equilibrium length of the spring is d. The  disk is now angularly accelerated until it reaches a constant angular  velocity of . At this angular velocity the length of the spring is now  2d. What is the angular velocity of the disk?

You measure that 4000 kcal of heat conducts through a window in your house in one hour when the  house is kept at 20oC. The window is a 4.0 m2 pane of 0.30 cm thick glass  (k = 2.0 × 10-4 kcal/s∙m∙C°). What is the outside temperature? 

(A) 4oC (B) 8oC (C) 13oC (D) 16oC (E) 18oC 

The red glow in the neon tube of an advertising sign is a result of 

(A) fluorescence (B) incandescence (C) iridescence (D) coherence (E)

Which of the following people was a recipient of the 2018 Nobel Prize in Physics? 

(A) Frances Arnold (B) Donna Strickland (C) Tasuku Honjo (D) Kip Thorne (E) Joachim Frank

像这类知名度比较高的竞赛，往往有一个共同难度——答题速度。45分钟要完成40道题目确实是一个挑战，算算每道题只有1分钟07秒的时间。面对这样的高要求，如果感觉自己从头梳理有点没方向，欢迎点击预约试听【橡沐国际竞赛辅导班】——

点击

物理碗比赛难度大吗？想拿奖可要积累物理素养哦

历年物理碗真题分享 不同级别的十题难度不同

查看。