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习题练习:Physics Unit26: Special Theory of Relativity

 作者: physics   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 that has no windowma it*j d80scbamd+ z u;u75*xs, radios, or other means for you to observe or measure what is outside. x 5d+0zmm8 tiusjaa7*d buc*; 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 experimenf5e: rm+bc(8sp5i /:meium vn t 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 Morley conc(q*d+wsz;vc zbnt ,:; bcgtnde 66m n-luded 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 componen: ek(ycs *)tkt-ife:*ig 9fz. lo: rfpts:

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5#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the relativity prifwii f+ s,6m:mwplootb:3erpj5),y 5 nciple.
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6#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the three unprovavt l 9hns ,wxr04t60n7 5uhuqvble 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 v vf 31xl)op58zgss8f relativity

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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 fo.wp2pd4 a3iwujhkk)0( f9vrp rmulating the special theory of relativity was that the laws of physics are the same in reference frame9wrvfi h )w .u k0j234ad(kppps 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 re*kfugsk b:*mywbpj( ,r 0u :b6lativity.
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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 rel9ext + 7/wapb)lfo3zeativity.
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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 inba/o-dx v.s ,lu)q eotpe5g0-7 ;umch a spaceship moving away from the Sun at a speed close tom ,ecd uop0;gex5-vo/ t 7sab.)huq- l the speed 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 observ g8 p40yzw j6tzzq7g+qer, 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 define3w0h)1l, mt qb3qkqz, dlo jl1d 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 snfjwk 6/k* 8yi) unx0evkt k.w/2-egbpeed to a distant star and back agaike2t8bi) 6v0. nww/ k*uy-kjef k/gxnn, 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 m o1pb4vol81e* s )at)4xqlbwgoving 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 wpmkgc39/1j zc:m 5 hkvelocity that approaches the velocity of l/ gc5 cjk:km1z w9hmp3ight. 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 palj 3ga cdt m203seja6do,mj2(rallel to its length with a velocity that approaches the velocity of 0c(atam2 ,djj33 oj slde2 m6glight. The 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 particle approaches the speed of ligh s(e 5utu8hy2:yye jwg9+w )aht, the mass of the particlew8 +2(9tueu )5ha shgyy: wjey

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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 lig e:g)ucmfg3n1jp,6/t p) rl ujht, the momentum of the par6p 1n, ucggte)/:) ljrfup3jmticle

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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 vera8 jg d5/*jyaybq* pq8s20 (evjl0sqxy high speed. As it passes, you measure its length at one-half its normal length. From this measurement, you co0q0v(d qlj*g8q58pysj*j b 2ay/ e saxnclude 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 kinem(7v(aiy:a retic energy of a speedy proton when its relativistic mass do (e7a:imyvra( 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 when its xxuw0 38t4b harelativistic mass doublex4uh w0b t3x8as?

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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/292edmzd wuv 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, eqkr83tf2ck +aytfk 1 x98rv5i ach 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 ftk yr1kir9af t2k3 vx 8c+85qship 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 dependy 7ta5yswv27g(nvs,y jdp).ds 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 8x x7o6sxcn 0+hx-vpaspaceship 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 still water. With what speed, relative to*v:pvcy 9 v58ceu+wwd the shore, does it move in a riveu*v9 +pcwv8d5vwce y:r 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 still water. With what speed, relative tu9 cr:/nbt ih+o the shore, does it move in a riv9 bcih+u:r /tner that is flowing at 1.0 m/s if 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 still watep-z-hdb f ;vzz 78cu7pr. 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 straight across the rivh -b z8fdzuc7p7pz;-ver?

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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 a stb/w-s +fity2f1yfyl 2p3x*y6xy 3bv tationary observer as runnixt1yty3ybsl +fffpw-3* xyv i62b2y/ ng 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 retur6yxt n, m6t rpftw2+p7ns in 10 hours according to a clock on the spaceship. If the speed of the spaceship is 0.80c, how much time has elapsed on the Earth ft t6nx7tw+y,6p 2pmr?

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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 initiall*rponyitis9j o +n5 18s;rc* ly 10 years old. While Courtney remains on Earth, Andrea rides on a space ship which travels1sri tci9y*njp rl o+on 5;s8* 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 trip with a speeb4fvmu+ q-m2vd of 0.80c for 30 years according to a clock on the spaceship. Upon retum2-v vb+f mq4urning 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 ofg9f1f* y5/ofqgi + ,okk teziwnj: y8, 0.80c. 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 ofvi+8q9;jat/ndokc+q iitu 5. its proper lengq5tq tn k oi;dv+8./uiaji+9cth (as observed 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 when it is at rest. If the spaceship traveiw ,pt:ggdw 11ls by you with a speed owtg :,i1pdgw1 f 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 system is Alpha Centauri, which is (7*wc6l.; 7sfg p isuut eego44.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earth tru.ue4s i*7 pf7egc6w slog;t( avels 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 o sb ctxi/lg/ ec-./ve88f1mdsu /+ tsp x,sjm0ur solar system 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. How much time would elapse on a clock on board the spas/xe dgm8c uss,/-j/+v/8tpmx l s.bte cf10iceship?

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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 issr989/b 7z9 zj:knvfyj t v;re 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earth travels towarze99tz7 nk j: bj9rsfvy/v r;8d 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 0.85c. What is its mass? (The r k:fbygf9(;v1xr h7hpest 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 eh,a38 r f)ljga:h (iyvxly(3twice 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 spaces/fd2z o 0leis(hip goes from 0.3 c to 0.6 c, then your mass will increa(zoeifd2l0 s/ se 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 in15 r ivg04urvvzd,z n2:cxsn; $kg \cdot m/s$ 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 losesydza4f7 tj8/ x $4.8 \times 10^{-28} \; kg$ 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 releasedatz3ht;q9y z)v 08ixs if 2.0 kg of material was lost during a reactiv0xs83;)ahyzi 9 tz tqon?

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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 ma fj9(. motf,v87m 3nzy(tqe loss 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 19omi /nd5a41 r52r/m uta1y xrd45 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 explosivd4ot2ruda/m15 i1a5mrxn ry /e. 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 iscw(lh 3 gqx);x 80% of its total energy. What is the speed of the h3xxw;lqc) g (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 id +vc7 kbp8 yycbyi;*,s 80% of its total energy. What is the momentum in *yi8kyc+pdy bbv, ; c7$kg \cdot m/s$ 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 l3 udid+q t(d2nh+u7pp4 l,kk 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 reactio,xmb- fua*k 8.pq0kvhn 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 eneo5wl ib:r/+ o/e rpz*krgy of an electron 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 enerso q 1gnm)b,l8gy are required to accelerate one kilogram of mass from rest to a velocitymnq ,sgb1o8l) 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, e,n*wdkzs3o: do r(k5$1017 J$ 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 kqylx759prv tdc5c / :factor has its mass increased with respect to its rest mav7pt/x l5ry5q9d: ckcss?

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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 meka qu4n ;- eatbc94:oh:3xdmqasure the speed of lighdaemh4 c-q:9txnk;qb:o a4u 3t 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 rel.)zar d-)ljnjih*g * oative to the Earth. If the ships are headed directly toward each other, what is their approach vedjojz higl *)n-*.)ralocity, 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. 3w,4kbd b 5fa6tnze*g80c. How fast would light travel from the,4adfkzbg n35 t6bw*e headlights 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 spaceship thenzp9 +abz 6fwe0 fires a missile with a speed of 0.50c relative to the spaceship. What is the velocity of the missile measured by observera p6+f0ezzwb 9s 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 wi /q*hhe3/ubar th 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 hahq/re3u /*b of the missile measured by observers on the Earth if the missile is fired toward the Earth?

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总分:61分 及格:36.6分 时间:不限时
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当前第 题,此次习题练习共有 61 道题

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