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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: 游客未登录  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 t tsd7e6.svc -ic:,n4 awd5edyzq:xx+ hat has no windows, radios, or other means for you to observe or measure what is outside. You wish to determine if the ship is stopped or moving at cqd-7 4 e:z ,5w6.sxicdyxd+: ntae svconstant 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 wasw t8gko5 bw+y3 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 Morleykb u ,tg+t hgp0l.;)nl concluded 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 the following.sj2pl +gpj jasrshp-y3d 5( / 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 princa -s8qn;+nipdavjluf,; *7 zhiple.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the three unproslnbod y9ji+cnth2c ; k vd)2:gx(77gvable assumptions of Galilean-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 relat:qdo;t4q aw:neq( tp2ml gt63 ivity

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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 th+i fj x/p9gyqb zta/72e special theory of relativity wasbfgaz/9y pjxi7t 2+/q that the laws of physics are the same 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 relativityf bzydw ryi -5*/9+,pdly+xcurk+ra- 2zw d0v.
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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 speci. 2krsrce/9pk al 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 rate5od-j*y0g1z ew x bqw. while in a spaceship moving away from the Sun at a speed close to the speed of light, you would finqo z -wjg5*b1edx0wy .d 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 cloc00c1g8hhj lyq9m (f dak

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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 defineg(z3(lw ;z gkad 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 verr+dp xezc;aq,a/ ) tgt yyol/6p:cz:6 y high speed to a distant star and back again, while the other twin remains on Earth. The twin that remained on Earth predictdztl)a+:y g;ycc /et ,r6 pq/:6azoxps that 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 m 03gj nd,3kihvg30mgyoving 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 parallel to its length with a velocity8x3 4xvx:eb+u sn0.lyd*wwi n; dlf d/ that approachd*u. +lywne:3xwf4; 8 xvnd0sbl x/dies the velocity of light. The width 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 tmyumcc,/7roer-1 7fuj h,oh 6o its length with a velocity that approaches the velocity of light. The length of this object, as measured by a stationary r,h fho,-1yu67omm/e rc7 cuj 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 mass of the parlg 5:nq5r3 *.) nxfr3yuxxd mfticxn d5rfu *:r3qg)f 5 xn3l.myxle

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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 light, the momentum of ba5h7hbq)fe fcl82b,qx l yjq(c+m 12the particljhf c872 2q1elq5+a h) fm xb,yq(cbble

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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 it passes, yo) + .mmk.vi* ysvft ij:r5xqm5u measure its length at one-half its jr)ksxm mfm:vi5*+ v . 5.qtiynormal 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 energy of a speedy proton when its relativ7 1nwr2gd3c +h ua 6pmu8nrh+ hpm*6zwistic mass do67r wwd2zurmg63 hnp *+p+m8hu ahn1cubles?

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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 energz95 guj1zm74/eboi(e 6 iqmasw-qwbn 3sd8y 3y of a speedy proton when its relativistibn 49eo/d76y8s33 me-w jz i(zsam5 iq gqwb1uc mass doubles?

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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 mo v.hmfn45 2cqa6u/lm ass $m$ 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 spaceshi,ntz 2fp 3 /l6tapd*vcps, each traveling 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 velocit z,v f6*nact3l2ptd/p y 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 depends on the observei(4hg)dap kp .r'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 would observxktj i+.,ku m(e

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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. Witz+mpc aa5w 4*j3k csv j038ohbh what speed, relative to the shore, does it move in a river that is f paw mv*0bc 3sjz5oah8k3j c4+lowing 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 cp/ruz cal g(8ndjt+32i7z+z r: ro;z, relative to the shore, does it move in a river that is flowing at 1.0 m/s if r cl+g p3 uz7+2zrzzin8cr(; atdo:j/ the boat is heading downstream?

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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 stz ila6m + 7wo: mx2u:5 xwdg:az30lqbmill 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 headim03lagza:7 b :il5:xdx6umo+qww mz2ng 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 observed by c ;*4mbrt0nfna stationary observer as running at one-half its normal0nfm;*rt 4b nc 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 k;q yekwx u2gvt4 :xd.zl1)c*hours according to a clock on the spaceship. If the speed of the spaceship is k kz:ugylx 41.;wq)2etdc *vx0.80c, 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 1s4).xp0q qhyge:y1aybj n8 .j0 years 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 comes back at 0.6c. When Andrea returns, Courtney is 20 years old. How old ype.8jhqga0 .jy4nb) :qys1x 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 trip with a speed +u sbc587x53aqcrmzf of 0.80c for 30 years according to a clock on the spaceship. Upon returning to the Earth, what is his own age and the age of au5+5zx 3bccrfsq7m 8the 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..zl hcz)k0vk+ 9hr )pf80c. 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 lizya.ezaiv l8y;; /5kjgv 37:xphe2 to move to contract to half of its proper length (as obser xgez2/;y palive3j;5h7zly:vk ai 8. ved by a stationary object)?

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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 m6j. .gl03u lzxl w.lve when it is at rest. If the spaceship travels by you with a speed of 0.70c0lz6uj.lw x. gll3. ev, 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 syst i4ekb6rch2 x-kj)xp) em is Alpha Centauri, which is 4.30 light years away. A spaceship with a constant speed of 0.800c relx)2ihc k j4p x-6rbe)kative to the Earth travels toward the star. 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 Alphay hprs56 :y*z 0j-cr fz*cuy/r 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. How much time would elapse on a clock c5r0yf hjz6z yrs*:pru c /y-*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 ligmac-xd-ma2 ql nl8 *5fht years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. How much time would elapse on a clock on t5d8ma a2-lcqxfnl* -mhe 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 its n bn6qhikk1l34 c6vb r4 1rb 1s7uku)c gu..vcmass? (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 mass is tw1z9e56oai cq tice 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 f zer y, xnhs*0 sgw5yxce-+,w8ej9zz/rom 0.3 c to 0.6 c, then your mass will increase* zcrejxzxwwz/s, g5,e h-+0n8 y ys9e 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 +h:5kuznmzsww )x 083sxtz5d $kg \cdot m/s$ 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 elk+jijav(c4 n7 h p h*cq8txb8:ement 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 los r(xusl)7 j2gvt during a reactio j7s)l(vgr2 uxn?

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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 gv2dh n;yn ntfpo ;.sf8 l6pl(i.m0e /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 dropped on Nagasaki in 1945 kio4t9: n v6lwe8wi2xt jlled 140,000 people, helping to end World War II on 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 ofl9joein86tt4 x2v :ww 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 spev w, ta,,)m:rvj/sck ced of the proto/,,c t )sc :wjvmak,rvn?

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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 is 80% of its total energy. What is the momentu :oww0n8t;chke,subh :j3 0som ins:wkbw ch,;ns:ou3e 00h jto 8 $kg \cdot m/s$ 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 reaction in whi3. j ;4uped ;(; kymd9ufpczonch $1.67 \times 10^{-25} \; kg$ 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 durk uq7knen(rj+.z /he*ing a 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 withp tw26u b +.*rnwecrd4 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 kiloglwmbs 5dg+8 m1ram of mass from rest to a velom8m5d+ 1slbg wcity 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, gt vc/ /nh)*umn77ubh$1017 J$ 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 0en b;0a t7zinx+1. avouu8sv 3+slws. By what factor has its mass increased with respect to iv 3wos10n;a.+v bt0esz 8au iulnx7+s ts 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 mema oe8/en p07 wh-ctr7asure the speed of 7h7net/orw a m08ec-p light 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 relative to the w q5kpmy4i.b2Earth. If the ships are headed directly toward each other, what is their approach veloci 4q5mw2bpyi .kty, 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 with a speed of 0.80c. How fab:e,fgwb hbjy6)ez/)/(bx ch st would light travel from the headlights of the ship relative to a statio/eb e : bhb ()yxwhjcf6/,zbg)nary 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 nw 33ca*8bih*g oczv 0pmt0el)t g*c 1Earth 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 velocitt0eo gcmzw3*n*v)c1pg i ht*8 0lab 3cy of the missile 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 Earth 4p j+hmg33l5;t jaboy8ny ro6 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 missile measured by observeja843 mnopo rygy+;tjh3 b6l5rs on the Earth if the missile is fired toward the Earth?

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