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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 windows, radios, or other means for yo5yis +mca omg;3:+ w/zeop u8:t;ahafu to observe or measure what is outside. You wish to determine if the ship is stopped or moving at constant velocity. What should yom+sum ;gfcia :h oyapw;ze8:+oat53/ u 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 e -*0xiks azuc66xfx)o xperiment was 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 Morleyoowhv kps+9emh)(o 3(-m d/1muj t+fy 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 yehj63sm9r:b 3l5.eamar+ito 4c m ;huou 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 princip5iq(oy (wpix+u-os 5ple.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the three unprovab wbzg9 zja(;:wle 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 rel 1ypra4j cu)j;h: gpa:ativity

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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 special theory of :( nmob pcakoo* vu(8sxou67p5je;h: relativity was that the lawpm;: *nb(7a po( u 8koe5soc6vxu jo:hs 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 relativiy-(o-ttvcu .xbp9 mn6ty.
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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 specia/p/blgeor /y, xzv*ym/ *dyb2l 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 spa z5m8;ooo ina5ceship moving away from the Sun at a speed close to the speedm 5oni5z8oao ; of light, you 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,, qfz tftq vrc1))5iu 26mtfu4 a moving 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 muo- 9jl l,6+ t0c aboixety3(defined 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 se-kw;;k sl e4u)y yo(khip traveling at a very high speed to a distant star and back again,wk)y4-(lkuesoky; ;e while the other twin remains on Earth. The twin that remained on Earth predicts 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 moving objrvq4p,bvm. w pd3.- mfect

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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 velocity that appr.hv yin;t-f.sbdzk b+wsdb9q:2-(d s oaches the velocity of light. The width of this object, as measured by a sbqb9;w-v:2kb dns( ds +z.f -t.ys hditationary 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 lengthph :-b6g098wrakwzy1ldw/ ww.n k 4fo with a velocity that approaches the velocity of light. 4d 9y.-6hk:l/w frb0zaopg18w knw wwThe length of this object, 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 pac 8 ytmp0 00pt.efv,gbrticle approaches the speed of light, the mass of the particle 0f.c0t0 pmyptg b,v8e

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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 apprma, 7u az2j0la(xzoh8 oaches the speed of light, the momentum of the partic,8 a7 ho0z(2a zxlajumle

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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 sp,hvh10.rc0l0ilmer ( npd )vseed. As it passes, you measure its length at one-half its normal length. From this measurement, you ci,0shce 0r(.v l drp)hl1n0vmonclude 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 kinetkjf z5 b.p /gjr0;7dlqcaq (*zic energy of a speedy proton when its relativistic mass do;zz f.cqql(* 5/dr07bjajgpkubles?

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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 0-b6nz z 16znsz;pnag/a0folko;i8 w relativistic energy of a speedy proton when its relativistic maw6;1g8n k6 ;l/0oszai nzn b-fzopaz0ss 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 o0p 2e0bc7pedqf 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 trave5nswm/dv3u8 (mac)8c cd+t x nling 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 measud dn) nscx8v +5/8mcuw3 (mtacre 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 depends on the obs 02wx qm0vl nfg xulto*s68u(8erver'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, yourun57 ::z ejacu4xk2j 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 still water. With what speed, rel:oiz srlkj.,(2a/hf native to the shore, does it move in a river that(r,/ifkjanl.o sh2z: 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 raj id ve f5iv.8gx:: 7o).lrfm/s in still water. With what speed, relative to the shore, does it move in a river that is flowing at 1.0 m/s if th ivjo57:lv f .:gf.r er)d8ixae 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 still water. With what speed, relative to the shor d7bnanqn;r4g3 s pg8/e, does it move in a river that is fl/ 4spbr3q;8agdn gn7nowing 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 m4v;-5 (wbio0/2( dznen ro gxk vz2rfclock travel if it is to be observed by a stationary obsknz 0;4rv2ov-dxf5om(zirw/be 2( n g erver 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 nonst*i9( ffhinpnvnc(6 r4dq:7gjfbr .a0d u)y6pop journey to a planet and returns in 10 hours according to a clock on the spaceship. If the speed of the spaceship jng7vd( ) r*cfn:rpfd iy40 6punq6.hai(9 fbis 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 years olpppgpr/)n 3jzv1ip, ,k0j x0o d. While Courtney rem13/ pg ),jp,p00kxprzijvpo nains 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 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 spa;b crc1dav x*3ce trip 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 age and the age of the Earth-based*cdc ;1bx3 vra 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 length*x-.q/mqi0bvx vyt q9?

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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 tcl.x xm,hj0n rnr :7:wo half of its proper length (as observedx n.cnxh wm:r7:l0rj, 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 m whovjatw;o pddwiked5: qu52 :ip :f/5/en it is at rest. If the spaceship travels by you with a speed of 0.70c, what length does it ap:j /do2k5w/5 p a:qp; etfduw:5oiv dipear 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 system is Alpha Centauri, nphdgne:3k d 6 *-7/oyhsh.tkwhich is 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Eart oe-/:6gn.sk7 *khhdtn3dp hy h 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 Alpha Centauri, which is 4.30 i+mn8 yppzj g3k0 fp-1light years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. How muchk ijmg8pz f n1p-3yp+0 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 syq9y g yugpib.u.*r.+dstem is Alpha Centauri, which is 4.30 light years away. A spaceship with dg9big ru..*yy uq. +pa constant speed of 0.800c relative to the Earth travels toward the star. 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 0.85cius90e.etae5v*g x m,. What 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 proton if its mass is twice its rest mas;k9942oy sx 6 miervoiwi2wz :s?

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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 gy ,e;2de, -lcul)ciyto 0.6 c, then your mass will ineugyc,,i-;e lc dy)2lcrease 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 ag8 k(urc1 w4sn y+8dxin $kg \cdot m/s$ 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 ele qyf,kxd-b7gy jvdf;x 4 b71g.ment 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 i.v r ov7/g9aq0y:znjbwf*rt 4 f 2.0 kg of material was lost during a reactij*q/4bnr0 v9gtaf7wory:z . von?

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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 o jpad 0hdp9 a:8x) za76vg:wxequivalent to two kilogram 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 dropped on Naak) cnpdo dxl(y: :rry/q6j* (gasaki in 1945 killed 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 of TN :r rnd)*qjy(o/dca ykp:xl6(T = $4.3 \times 10^{12} \; J$) 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 isvl)c gphu9y3 9 the speed of the protony 9lv3u)h 9gpc?

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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 iz (ggkwi)-h x7tyed(049rm+fsid6vgs 80% of its total energy. What is the momentum in zh4gke fm( r sy6v)7tgw i0-+ dxg(d9i$kg \cdot m/s$ 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 -sgy;2 wmy65+s bgzfpa 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 a)a5/p 4ui yylu 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 wit5goyh pxx(xw91gtor,a , ,o0bh 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 energ*v)) lu.fouqo*v i9qnmq8o+ fy are required to accelerate one kilogram of mass from rest to )v*q8lfvmqo .)uqunofi o9 *+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, 9duqpiu/d3 l3$1017 J$ 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 its mass in eeht73x z4qi*5hnkik *;zpxim;0wo 4creased with rez*q wtxezn; k khop054i3e m;i 7ix4h*spect 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 measure the speediar6ftjaj) 6ukl, i( x5qm+) d of light from the Sun tx jilmf 6au,)kr(6t) j5qad+ io 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 co s9bpp53j gba1v2 775uf8est. wbmkm relative to the Earth. If the ships are headed directly toward each other, what is 7 m5mf9ka.gov5j esb3wb2 1pstp u b87their 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 with a speed of 0.80c. How/bd,yw h 93k.v s;p1x q,xjppl fast would light travel from the hekbh3/ dxpp ,;.,lsqwyx19v pjadlights of the ship relative 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 spaqqysa 1a73b3kceship 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 awya7q bsqa31 k3ay 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 with a speed of 0.80c. The10z j0saq (ezc9ey:rd spaceship then fires a missile with a speed of 0.50c (esa yqj1rezd9z:00c 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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