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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 spaceshgct(z j(5u*nxsop7+aip that has no windows, radios, or other means for you to observe or measure what is outside. You wish to determine if the ship is stoppnac(opuxz75t* +jgs (ed 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 w d b+dmp4a6o3k45tpcq as designed 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 conclude 7 -uf7k)w+,wx qsfplkd from the results of their experiment that

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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 interferometer yourself if you use thebiv16i( me x.;3ypygi82iz s q 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 prizh:mx5g3s,4 z8+ 0laak ryupwnciple.
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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 Galileanei2vvcw-pf*g* vj 1 k2-Newtonian relativity.
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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 relativit- h jrl)y/) sd2,.r1eodleudu7/ f u;dd 0dqucy

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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 lxjht b6hj;8 0e/ 7bgwe gu4k3in formulating the special theory of relativity was that the laws of physics are the samej7/e6uw; 4h8 tgl 0b x3kgjhbe in reference 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 special relativity.eojee)7he8)hdek; -iu -y( q s
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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 special relativi7x2fm5p, xburyuh7m f2jbt fop8+35 fty.
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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 yod4:wkt5f1j8 qx4/b um6c higu ur pulse rate while in a spaceship moving away from the Sun at a speed close to the speed of light, you would find tha8/kxgqj 6:hc iubw 154dut fm4t 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 movlrr sb myfn al6wl0b0 gm;66kx(5g2/qing clock

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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 defphdaf uujd+1p 76 wejpd7um ;z028w :yined 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 takes a ride in a space ship traveling at a very high speed to o5 ,3aldbcxwq.kz5pr,h15 oc a distant star and back again, while the other twin remains on Earth. The twin that remained on Earth predicts that k3 ,.lcbc5oa 5qdo51r,hwp zx the astronaut twin 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 observer, a moving objec 1drxuw8k+8um t

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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 parallel to its len ept d9kse8lr50d)oa6 gth with a velocity that approaches the velocity of light. The 5o9 ds0p)e86 krtdla ewidth of this object, as measured by a stationary observer,

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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 parallel to its length wgq kx3u0 fj xi;*8nvf3ith a velocity that approaches the velocity of light. The length of this object, as measurk f3nvi3q;j8 uxx0g *fed 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 approrld;y( n; b.bpy. d-qdaches the speed of light, the mass of the particdb(bd. ;.pdq;- ryly nle

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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 sw(lppna4cg2 8 peed of light, the momentum of the par gap2c8 l4w(pnticle

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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 (/7y :qt dz.zek jifs(very high speed. As it passes, you measure its length at one-half its normzjfqesyz. /7tk(i :(d al length. From this measurement, 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 energy0+pz0x1xa bp vjvg/ a/q j0d(x of a speedy proton when its relativistic massqj1ab zjvap0/ x0xv/x+d(p g0 doubles?

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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- rzcd;)r a(ux wdr1f ky8s/2p.z6kye relativistic energy of a speedy proton when its relativistic mass doubles?2;dw6uaypy k- z kz8/r)(r 1ced.xrsf

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider a particle of m0camdr4 awq)2: nwpi6ass $m$ 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 traveling at 0.50c in a stblc64v97 sdtmwej47r oml5*l raight line. Ship A is moving dirers94tl 5clmjevwl o d 46*bm77ctly away from the Sun and ship B is approaching the Sun. The science officers on each ship measure the velocity of light coming 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 depy ; umfijtrzi60ek+v gy6w7,)o *2 dspends on the observer'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 spaceship increases, you wouli sm rha*q6dyb:5ktw8x 5d; f(d 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 still water. With what speedz/:9wak rhkv47kj;z h)u9a ax(uhg )g, relative to the shore, does it move in a river that is 4:z ajh 79hgv9) xwkzkga(r/ u;h)uka 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 still water. With what speed, relative to theeo cdxm9+mw -1 wzfw+1 shore, does it move in a river that is flowing at 1.0 m/s if the boat is heading downxzw + oefmc+ww9-11dm stream?

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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 water. With what speed, relati 9+x)eprqm+iv ve to the shore, does it move in a river that is flowing at 1.0 m/s if the boat is heading straight across the rrxiq+ +evm)9 piver?

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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 observukxou,a2l x+n4bgg2+ 2ozwa 8ed by a stationary obsn4o gzxo,2kaa g 2bw x+8u2+luerver as running at one-half its normal 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 planet and returns in 10 h- 4gu g zgs3,a),9jg-lkoxrvsours according to a clock on the spaceship. If the speed ofxu r-j4 9agv-sg,zos g),gl3k the spaceship is 0.80c, how much time has elapsed 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 yea d*q6ca ).ubzwrs old. While Courtney remains on Earth, Andrea rides on a space ship which travels away from Earth at a speed of 0.6c for five years (as measured by Courtney), then turns around and comes6cwaqu ).db *z 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 trixn qs)-x*x9dv p with a speed of 0.80c for 30 years according to a clock on the spaq9v-)sxx n*dxceship. Upon returning to the Earth, what is his own 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 0.80cj 9;oqo d -wo4yul2a7x. What is its 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 to contract to half of *v)uu.jpdve+ -4eegub g*n *iits proper length (as observed by a stationary obj ejeidu-gv4)*eu+u n *pbvg*. ect)?

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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 at rest. If - wpubod abyb0 4or-8b-,6pj sthe spaceship travels by you with a sp,8j4ab0 o-b y-s-pb do 6urbwpeed of 0.70c, what length does it appear to 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 s ((fqmyj4sk*b,-rk8a;ab* ykxn +iy lystem is Alpha Centauri, which is 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. What distance does the space ship travel according to a passenger on t( nrkf yi jy-s4;bkxb+l,mky*(a qa8* he 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 isl3sg8 koyl1cn xk-h8) Alpha Centauri, which is 4.30 light years away. A spaceshihk)xl 83-yclk1g ns8op with a constant speed 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 y)bqxo 7q6z5 qdears away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star56qob7)dz qxq . How much time would 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. obs+n 1;haf 5n:r+ brsWhat is 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 pbqf-cx ee2+7s roton if its mass 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 spaceship goes from 0.3 c to 0.6 cc hbo-) 1s,3kvco n:up, then your mass will incr1 ,unh)ock: csob3-pvease 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 in s6uihab,ua,w * db 1,w$kg \cdot m/s$ 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 elem)7a)ifh 1 mgynent loses $4.8 \times 10^{-28} \; kg$ 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 was lost during a reactiox 0y;jou z0q/ooj0;u/yzx0q on?

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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 ksr 0ae(1pg g)ba2 fe.milogram of mass at 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 dro94qc ynl-3earx+xpq a+7n)rl pped on Nagasaki in 1945 killed 140,000 people, helping to end World War II onlrx q7rpqace l +nnx+ a)943y- the next day. It released energy 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 is 80% of its total energy. What is the speed ok+9-c )fl zd rpdj hkppqs+-./f thcz +p+ /9q).fhkdrsdk-jlp p- e 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 afl- m6-dc*o lx/sb7ock0yi4 i proton is 80% of its total energy. What is the momentum /l6sim k 0occ --i*4flbdo7x yin $kg \cdot m/s$ 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)nudccszw8 q +0w6qcyd0t(-t : during a reaction 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 0lhx h, +9nawea reaction 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 electron moving with a speelo9ujvedha/i+h/ tu4y nke33 3 7(rgzd 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 mass fromrs 3fgd)saw1v+ qi 9j0w:iuf8dt m .s: rest to a velocity o i q3+mf :v:1gid0)wduw ssrj9 tf8.asf 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, dsycd :;7 6p2t7xwzdsq++ k7e re .upc$1017 J$ 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 factor has () acfa7xrvh.its mass increased with respect ( a7 vfhxca.)rto 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 frqwi1s *-aq +wd6po zx5zd4p (of0z-fmom the Sun at 0.95c. You measure the speed of light from the Sun to *sqf(zwp+dzaio-p- 4qdzw 10xmfo 56be

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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 relativy3 m.4bwkpvnb 4+7 poye to the Earth. If the ships are headed directly toward each other, what is their approach velocity, as measured by a person on either crbpvy4pw .mb+47 3oyknaft?

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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 with a speed of 0.80 6 sgp-2p*ed)4-) 4nahiyknf vqfl+k wc. How fast would light travel from the headlights of the ship relatihn) 64ffpa w4 eq-p*kln) g+s-kd i2yvve to 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 Earth with a speed of 0.80c. The spapl/3qn0ou wknzcy 7(f5yuq :7ceship then fires a missile with a speed of 0.50c relative to the spaceship. What is the velocity of the missile measured by observers on the Earth if the missile is fired (0 pnly7nw5q/k7ouz: uqc3yf 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 Earth wwg-3 pxh6 n/kh2 a94 xr0t /me1ujbmjzith a speed of 0.80c. The spaceship then fires a missile wit3 hugz te/9ka6j xn4h0w/pbm-2mj1r xh a speed of 0.50c relative to the spaceship. 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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