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习题练习:Physics Unit26: Special Theory of Relativity



 作者: admin   总分: 61分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月01日 10:24  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You are riding in a spaceship that has no wuir.w;6 gpx9 eindows, radios, or other means for you to observe or measure wheu9p.x 6w igr;at is outside. You wish to determine if the ship is stopped or moving at constant velocity. What should you do?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The Michelson-Morley experiment was desi owy/ardbjnozl1:)( ) gned to measure

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Michelson and Morley concluded from the results of their experiment that-qow w:xf47y h vq/f;a

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You can build an interferomet as-m03tgo n)s dr44//hxuna-a8pab9a jl-pwer yourself if you use the following components:

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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the relativity principl2 k5l*yi-zrofe/lw .zdp,q) ze.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the three unprovable assumptions of Galilean-Newtonian r(wpf n)hd7 g:lelativity.
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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The theory of special relativivb o. bvxe 4lg1 )pc+0.w qyey*-pjzg)ty

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One of Einstein's postulates in formulating the qa,g cp8.f8 ls0mqg*3ep t1kbspecial theory of relativity was that the laws of physics are the same in referencf ,gg38 8 0ptpkmqs1cql*b.eae frames that

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9#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the first postulate of sj/ss+w675oso8zck3 y wa(y gfpecial relativity.
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10#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the second postulate of*. mmto x+6)hc: ms w*ip5 dvs:ti/vod special relativity.
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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you were to measure your pulse rate while in a spaceship moving away fdk (ih* d*t* w0dna l0:iaz)iarom the Sun at a speed close to the speed of light, you*d(zd0w)h i0 :d *i*laikanta would find that it was

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Relative to a stationary observer, a moving cl.vk edez.j3a5el6 j6 cock

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The gamma factor is 3fi (7gfa z2xkdefined as $\gamma = 1 / \sqrt{1- (v/c)^2}$, therefore gamma ($\gamma$)

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Suppose one twin takeye*gg f **wkx2s a ride 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 remained on Earth predicts that the astronaut twiy*eg2wkxg* *f n is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Relative to a stationary ob lzx/k4racxczs2j2p 1 -ai,p*server, a moving object

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object moves in a direction parfjyxpuul2p ubl8 w.0h/s28qr0ucc;0 allel to its length with a velocity that approaches the velocity of light. The width of this object, as measured by a stationary o8wuf8r buu;00l2csjq2p0phu/ lyc . xbserver,

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An object moves in a direction a)cr 0owco( )cparallel to its length with a velocity that approaches the velocity of light. The length of this ooar0cc) w()cobject, as measured by a stationary observer,

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As the speed of a particle approaches the speed of light, the mfz)ls yv-t ax5)c-4wyass of the particly)4ty5xsc aw-f l)zv-e

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As the speed of a particle approaches the speed of l/tg0pgf7 e+v bm:h8glf c+q2tight, the momentum of the partil2p/ gthb+qvgf 7f08 tgce:+mcle

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spear is thrown by you at a very high speed. As i(y2fck*(. zjc-z vsw nt passes, you measure its length at one-half its normal length. From this mezfzw(.kj*(2ys c -cnv asurement, you conclude that the moving spear's mass must be

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the kinetic energy of a speedy proton when its relativist)dr xd+afwg u: gw)59x+(qv vkic mass dog+w9vg+r :x5v )dfw u )kxqad(ubles?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the total relativistic energy of a speedy proton c1bhz s )e5zyakk:28u when its relativistic mass doubleu:k2h ze)sa8cz1kb5 ys?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a particle m)la 5q;uyi*zou 4(yoof mass $m$ and rest mass $m_0$. Which of the following is the correct expression for the kinetic energy of such a particle?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two spaceships, each tz+2wy4 k 8hd 7xp2jbaab+5bhw raveling at 0.50c in a straight line. Ship A is moving directly away from the Sun and ship B is approaching the Sun. The science officers on each ship measure the velocity of light cominz kxda2bwyw 2+b7p hja b8+5h4g from the Sun. What do they measure for this velocity?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following depends on the ovmslqt -y*sswyxg( t r 63 cvz5)-0y5jbserver's frame of reference?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As the velocity of your spaceshih0)d2 fzgd+r4ffh*gxki pj ko/ rr8(0 p increases, you would observe

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A boat can travel 4.0 m/s in stil6- n 5q1vjeaor *gmoce;nm5m9-ayd 5ll water. With what speed, relative to the shore, donm6vc rlm;-1no*e5 5gme 9-o aq5adyjes it move in a river that is flowing at 1.0 m/s if the boat is heading upstream?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A boat can travel 4.0 m/s in stilewdpn2 i3 ;0)pc 1 fns2o2lajkl water. With what speed, relative to the shore, does it move in a river that is flowing at 1.0 m/s if the boat is heading d 3nand2) p2po; f1lesj ikc0w2ownstream?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A boat can travel 4.0 m/s in still wa cz +.u) s1qi7re ki1g02wsiacter. With what speed, relative to the shore, does it move in a river that ck2aic1g.zr 1su0w+i q )is 7eis flowing at 1.0 m/s if the boat is heading straight across the river?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How fast should a moving clock travel if it is to be ob-tb;j2y- phk fntxp*wy,6a4a served by a stationary observer as running at one-half its noy4a a;w-fhk nxt -*ptb2y p,6jrmal rate?

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spaceship takes a nonstop journey to a planetw vze7a: yo1,f and returns in 10 hours according to a clock on the spaceship. If the speed of the spaceship is 0.80c, how much time has elzf1: e,wya7 ovapsed on the Earth?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A set of twins, Andrea and Courtney, are initially 10 years old. 96c,/ibyqa h8cmsc.f While Courtney remains on Earth, Andrea rides on a spaci/9 6ch.ycsc fbqa,m8 e ship which travels away from Earth at a speed of 0.6c for five years (as measured by Courtney), then turns around and comes back at 0.6c. When Andrea returns, Courtney is 20 years old. How old is Andrea upon her return?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One 20-year-old twin brother takes a space jref 8)jup1hz/ y.;sbtrip with a speed of 0.80c for 30 years according to a clock on the spaceship. Upon returning to the Earth, what is his own jzjp;ubrh) /f18s.ye age and the age of the Earth-based twin brother?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A meter stick is moving toward you with a speed of 0.80c. What is its*uk5zljy (/u7se+ue h length?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How fast would a rocket ship have to move to1 ri+)elr 4jp6newwnv g653ee contract to half of its proper length (as observed by a stationary object)5vjn1 nrel 66 eprw+3e)eig4w?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The length of a spaceship is 10 m when it is at6 s htc.r9eth h6t6gl;-hvk1z((6egi nrhu j/ rest. If the spaceship travels by you with a speed of 0.70c, what length does it appear t /ev66hk.grzne 1(9hl(uit gsr h- cjh;6t6hto you?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest star to our solar system is Alpha Centauri, which is 4.30 lighg2m9 ti ad5m6fgclcb:e7 em zf 3jno1z9h9f(.t years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the std zifja.7mf1(nl2gg:o9b z59cthe93ce m6 m far. What distance does the space ship travel according to a passenger on the ship?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest star to our solar system is Alpha Centauri, which is 4.30 lipc *pf;ug39 aqght years away. A spaceship with a constant spf9q;ga c*3 pupeed of 0.800c relative to the Earth travels toward the star. How much time would elapse on a clock on board the spaceship?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The closest star to our solar system is Alpha Centauri, which is 4.30 light yeab tjfmuaag.-s4* 7il7rs away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. How much time woulaft4gsbu l7*j ma7.-id elapse on a clock on the Earth?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is traveling at 0.85c. What is-4va shh-09ifzlula, its mass? (The rest mass is $9.11 \times 10^{-31} \; kg$.)

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the speed of a proton if its maf 7 r;lvmaj1)ass is twice its rest mass?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the velocity of your a-ba)iw1ggq -o yp :8ospaceship goes from 0.3 c to 0.6 c, then your mass will inc-o18qw)p ggiyab: oa-rease by

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the momentum t,utxpl,4w nhf(gx:* in $kg \cdot m/s$ of a proton when it is moving with a speed of 0.60c?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During a reaction, an element los q)snio ni8l fy / fjxzzf41u-8pf*+p9es $4.8 \times 10^{-28} \; kg$ of mass. How much energy (in Joules) is released?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During a reaction, $1.7 \times 10^{-4} \; J$ of energy is released. What change of mass would cause this?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy would be released if 2.0 kg of material 0.yo*mu gd46z8hczh p was lost during a reaction?p 8uz mh zyc.6h40d*og

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The amount of energy equivalent to two kilogram of mass a h;t,d s g5np)icm0vu8t rest is

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic bomb that was dropped on Nagasaki in 1945 killed 140,000 people, hvaplge6.0z-a3 lj2w-ca mb2oelping to end World War II on the next day. It released energ-wljaza-la3.pg om 620 v2ec by equivalent to that of 20,000 tons of TNT explosive. How much mass was converted to energy when this took place? (1000 tons of TNT = $4.3 \times 10^{12} \; J$) Incidentally, modern H-bombs have energy yields 1000 times as much!

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The kinetic energy of a proton ku3iai5m;,g:hdmfo3z s9b7 k is 80% of its total energy. What is the speed of theziufo3h 53ka; bsid,m k:gm97 proton?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The kinetic energy of a proton iwx0l *qci .,f9jvcy j7ia)c p4s 80% of its total energy. What is the momentum iij0cfl)p* cwqvc97ij yx4 . ,an $kg \cdot m/s$ of the proton?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What energy is released (in MeV) during a re96fq i ng5 sl wgj2 u1whkqcgl21m93.oaction in which $1.67 \times 10^{-25} \; kg$ of material is converted to energy?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much mass is lost during a reaceo y:j9 hpwrl3(q):da x;fd9ztion in which $1.7 \times 10^{8} \; MeV$ of energy is released?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total energy of an electronxb :+a:x) iv t7vmabb .z:u/rj moving with a speed of 0.95c?

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many joules of energy are required to accelerate one kilogram of massodn u94+r3gyax ;zy. -u4 qtfz from resqx-+z . y;ut44zr a9n fy3ogdut to a velocity of 0.866 c?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a nuclear plant, 960 h)r9,y 2heaucyghcf wg,w$1017 J$ of energy is available from mass conversion. How much mass was lost?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An electron is accelerated through 100 kV. By what factsdwwe 1d- 6ksv55 s.gror has its mass increased with resped 56 s5s-.svdew wkgr1ct to its rest mass?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You are in a rocket traveling away from the Sun at 0.95c. You measu rwvpd;j)+ nz7re the speed of ligh+z7);pn vdw rjt from the Sun to be

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two spaceships are traveling through space at 0.60 c relat 9 hux txii): (i/fwmbp( 9+c8yyl/celive to the Earth. If the ships are he: (cl yxipufi9y(itmc w/+ bl8e/)9hx aded directly toward each other, what is their approach velocity, as measured by a person on either craft?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A fast spaceship is traveling wio ol0nc7vge5 :th a speed of 0.80c. How fast would light travel from the headlights of the ship relative 7:ne loog0 c5vto a stationary observer?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spaceship moves away from the E6 m 4-lhozq)qwarth with a speed of 0.80c. The spaceship then fires a missile with a speed of 0.50c relative to the spaceship. What is the velocity of the mi6wh qzq -lom)4ssile measured by observers on the Earth if the missile is fired away from the Earth?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A spaceship moves away from the Eav 4cv /yqvi:-irth with a speed of 0.80c. The spaceship then fires a missile with a speed of 0.50c relative to the spaceshiiv:- cvv iy4q/p. What is the velocity of the missile measured by observers on the Earth if the missile is fired toward the Earth?

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