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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 journ31xt ma ;htw wozp ;06)w+kltxeyed from Earth to Saturn. The duration of the travel is measured according to the stationary observer on earth 0wzw3 h6;o;)w+xxtpaltt 1m k 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 nouw m c5a7ztpfo60 dq9+i/yh;r windows, radios, or other means for you to observe or measure what is outside. You wish to d tfwu7; pa6ry 0ihdq z5mc+o/9etermine 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 designed to measurythg(xb+r7uww 3b +v;e 9oxn(e

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6#
 
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  Michelson and Morley concluded from the resu irf*enjxn1j/ d vl.x0/d)8hb lts 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 interferometez0 dvg.i8t6 zkg .l5xtr yourself if you use the following components:

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8#
 
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  The theory of special ujb64ft de i y(luf: zs-,a*8trelativity

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9#
 
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  One of Einstein's postulates in formulating the special theory of relativity w h+)nqp55:jm6nbm(r cyu a8oz as that the laws of physics are the same in referencmy )um 5:o8q+pr ac njhnb6z5(e frames that

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10#
 
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  If you were to measure your pulse rate whilm+ 5s.47 js-h3tqci)dbyscey e in a spaceship moving away from the Sun at a speed close to the speed of light, you w.ssqc+4t i bye-3j7 hydc)sm5ould find that 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 obs. rw0.u-zn(l.8yguql l d qxa fam177f f5:qdherver, a moving clock

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12#
 
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  The gamma factor is desvpj5d q9w+q /fined as $\gamma = 1 / \sqrt{1- (v/c)^2}$, therefore gamma ($\gamma$)

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13#
 
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  Suppose one twin takes a rie2 )4zz1 i5vklnxp 4ips*0pcade in a space ship traveling at a very high speed to a distant star and back again, while the other twin remains on Earth. The twin that remainedpnxcz) k*4pp54ie 0i a2 z1vsl on Earth predicts that the astronaut twin is

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14#
 
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  Relative to a stationary observer,m-q4 jnxgy5f0p ha9o:)a;f yo a moving object

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15#
 
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  An object moves in a direction parallel to its length withps8aor(hd5sgq++ zu7ny n88l a velocity that approaches l +gq88+hnzdoays(7us p5r 8n the velocity of light. The width of this object, as measured by a stationary observer,

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16#
 
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  An object moves in a direction parallel kf0dpb s/1 2z(vb;mfk(t2uw7z/ lvdpto its length with a velocity that approaches the velocity of light. The length of this object, as m 227 fbfspzv( k;lzt/pm0vuk( bd/ wd1easured by a stationary observer,

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17#
 
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  As the speed of a particle approaches the speed of light, the m+urphj(; x 3hby .q8vfass of the particl+hbpyqj.v h;r38fx( ue

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总分:17分 及格:12.8分 时间:不限时
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