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习题练习:6.1 special relativity 1

 作者: linyun 发布日期: 2025-12-10 15:15   总分: 17分  得分: _____________

答题人: 游客未登录  开始时间: 25年12月10日 15:14 截止时间: 26年01月01日 15:14  切换到: 整卷模式

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1#
 
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Two cyclists, A and B, start riding their bicycles from the same point. Cyclist A moves northwards with a speed of $4V$ relative to the ground, and cyclist B moves westwards with a speed of $3V$ relative to the ground.

The magnitude of the velocity of the Cyclist A relative to the Cyclist B is

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2#
 
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  Observations of muon decay can be used as evidence of

I. Time Dilation
II. Length Contraction
III. Absolute Simultaneity

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3#
 
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  At a relativistic speed, a rocket journeyed from Earth to Saturn. Th a(0yl i0wedz)ajq /z;w6u-pli w8pj -e duration of dwi pw ei8;q0lp(waaly zj/ --zj 0)6uthe travel is measured according to the stationary observer on earth as $t$. The length of the rocket is measured according to the observer in the rocket as $L$. Which of the following is correct for the time of travel according to the observer in the rocket and the length of the rocket according to the observer on the Earth?

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4#
 
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  You are riding in a spaceship that has no windows, radios, or other means for tu ock*h-u.w )you to observe or measure what is outside. You wish to deuwk*u.c )h- ottermine if the ship is stopped or moving at constant velocity. What should you do?

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5#
 
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  The Michelson-Morley experiment was d+vvim1gt:8 k,9feai kx ,z .jnesigned to measure

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6#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17524  对错数 0:0  难度: *****  
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  Michelson and Morley+ c- ovu z1jhfws*v* zc8o56ux concluded from the results of their experiment that

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7#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17525  对错数 0:0  难度: *****  
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  You can build an interferometer yourself if you use the follo:k 2pthdjf5uh6)vu8l m,ipa* wing components:

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8#
 
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  The theory of special r ,d(yojn7ejg 3elativity

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9#
 
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  One of Einstein's postulates in formulating they2k qz:t3v t1syb qa36z/s(sb special theory of relativity was that the laws of physics are the same in reference f b3y q1z3ta(t sq62s:syz bkv/rames that

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10#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17528  对错数 0:0  难度: *****  
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  If you were to measure your pulse rate while inhy ;3rl0(k cfc a spaceship moving away from the Sun at a speed close to the speed of light, you would find thatrk 3lyh c;cf0( it was

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11#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17529  对错数 0:0  难度: *****  
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  Relative to a stationary observer, a moving cl* pt;1plbs0yjbg a52 kock

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12#
 
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  The gamma factor is defined azlee *ymy*u5)gv)r5jo 7azg 9s $\gamma = 1 / \sqrt{1- (v/c)^2}$, therefore gamma ($\gamma$)

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13#
 
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  Suppose one twin takes a ride in a space ship traveling at a u8nbk; 2xq q,xxfn)a;very high speed to a distant star and back again, while the otherx a;nn qb8q)2;kx,ufx twin remains on Earth. The twin that remained on Earth predicts that the astronaut twin is

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14#
 
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  Relative to a stationary observer, a moving obv4a d9o4c np5rject

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15#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17533  对错数 0:0  难度: *****  
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  An object moves in a direction parallu79g uz+a bqt.el to its length with a velocity that approaches theuu.tbzaq7 +g9 velocity of light. The width of this object, as measured by a stationary observer,

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16#
 
单选题 ( 1.0 分) 切至整卷模式 eid: 17534  对错数 0:0  难度: *****  
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  An object moves in a direction parallel to its length with a velocity that appr..w :b*jksg w k5nkk0koaches the velocity of light. The length of this ok knbgkwksj.5:. w *0kbject, as measured by a stationary observer,

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17#
 
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  As the speed of a particle approaches the speed wm3;.9, imkava2u onbof light, the mass of the partic aivn9. mobka3,u2m ;wle

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