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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 that has no windows, radios, or other means 5af5zu 31 lo.uw/jvc zfor you to observe or measure what is outside. You wish to determine if the ship is stopped or movin.cuuao515/zz3wj lfv g 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 designed to meaov u kb.6q/kk/c2 sxgar (i. 1ru+g*yzsure

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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 excs6d0 ivv-oot;ne)v:6 bou( x periment 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 yo l* rqp4ja yka55a7pkj,)or1vurself 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 principle4gcf2bl)4dbl -l rc vtsnqp4 t 006-qi.
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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-Newtonianu l uke860o-uy1nzu +pfw,m f+ d8of3v 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 relatpz9+ll9, 9 wdvq7glkdivity

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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 formulatmz4wjrlll;jgj pi1f4/7:p7 c ing the special theory of relativity was that the laws of physics jpf 7jl pmj/4g74;: 1irllzcw 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 postyk dgagzr.kd +/1rv ;4ulate of special 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 o0-cgmvlj tp , l22n3wfe k97imf 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 yo k.r imd/*9my ay8an)5 ykve6vur pulse rate while in a spaceship moving away from the Sun at a speed close to the speed im6 a/dny.a rk*kvvy9) ye8m5of 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;c9yj5n 7ud r8si-flz , 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 defiw15v37woju w qs),v hhned 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 travelinj1k h/; x,cyolg 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 twin j 1h,lykx ;o/cis

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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 objecd) km7cz4ir-1 g4tqktt

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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 wk b + 2bl3lid7r-gus*dith a velocity that approaches the velocity of light. The width of this object, as *is32 lrg bl d7kdbu+-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 with a velocity th / ngr(o2:dw 3 gnmy1jn+d4fxvat approaches the velocity of light. The length of this object, as nf1o2wg +r:gjyxn nvd3 m4(/d 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 sgur1usf4,p *1oc.gxl peed of light, the mass of the particlepx1o 1g4luc .g*,uf sr

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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 mo yq ij.)v1cke6g7z)71xjdxygk rb0 b; mentum of the parti 7k de r jz16ky.ixcg;01bjqxbg ))y7vcle

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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 tllb q2k .tt5;speed. As it passes, you measure its length at one-half its normal length. From this measurement, you conclude that the mtbtl . 2k;5tlqoving 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 relagmw2c2nq)6 sw)bg8u( wc*q e n*wvuf,tivistic mass du*c)nn g8g,* fem( wscvw2 2w q6bwq)uoubles?

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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 ehudt 9x32 xdb6nergy of a speedy proton when its relativistic mass utdxd h293b6xdoubles?

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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 8vz;u.oxi,ous2w 5 jk 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 trk*2eg gvkx5-bs2v idot 642flaveling 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 coming from2k5gsxvo-ik* 2fv642glb tde 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 observer's frame of reference?w8 /z fostmuu,d7 x-0wz+/ewd v5 gy0q

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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 wousz805 ys jj5 5k5n)pi7bsxpluld 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 wal1ljw6a*q-1 d1 wba c n9o2f+j t)cahnter. With what speed, relative to the shore, does it move in a river that is flowing at 1.0 m/s if the *jw cwajltbh1aql)-d1f 2+6a1nco n9boat 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.l c likqhi9veg*(0:2z su/t f40 m/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 i(sk 94 hfulc2:0lqz/tev*gi 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 water. With what speed, relative en(*f)f53k 8pupsri2 zt1ufato the shore, does it move in a river that is flowing at 1.0 m/s if the btuz ar ppn s5ufff8*1 k32e)(ioat 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 k yn:5wrw,l1kif it is to be observed by a stationary observer as :yk wwl r5k,n1running 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 ano6vo4 bs7-myq k/v5get:k-; tzxopf (d returns 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 Ea:mqkvo;vo7x- y-bfeg o z45t/(spk6trth?

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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 andp /qd0jrnby,( Courtney, are initially 10 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 retry0 (dpjb,n/qurns, 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 speed of 0.80c for 30 year (/ap j,bkc3-yqfm )crs according to a clock on the spaceship. Upon returning to the Earth, what is his own age and the age of the Earth-based twin a,r pccqf)( ym -b/3jkbrother?

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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. Whath6+cre- gk4v y 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 t cq+mia+o7wi 74m .3no(fhcvx o move to contract to half of its proper length (as observed by a stationary ofixc.o( mcv+onaqh7 m374wi+bject)?

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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 l m:/*svls b4kwhen it is at rest. If the spaceship travels by you with a speed of 0.70c, what k/s*:sl b mvl4length 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 systqwzm8v31k afxup+f f n j,xgki (:a6:+em is Alpha Centauri, which is 4.30 light years away. A spaceshipk+3nzp vjfa6km:(1 xwf fa xqui8+ ,:g 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 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 Cen6prah /*3nk,c- agb 9 np4)ol+v eiz 8dgreh8jtauri, 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 spaces4cgo k * 88bp)-eal3dnpg +rz/6,vehr j n9haihip?

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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 h9rak8h;/ 7rc u3vvxwour 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 elapser3/kc 8ua vxvhrh ;w97 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 rest mass ic)8 w. -wtry50b u5upgroa(b ts $9.11 \times 10^{-31} \; kg$.)

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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 ifmud0z)p mmx6egh3/h ) 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 cw *a yr09qd u;s/+gx4q/gwts c to 0.6 c, then your mass will increaryu/s+qqgc tgsd* 9 w/;a40 wxse 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 peun*l82oa3 x $kg \cdot m/s$ 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 loses s 03ob je- feon7/8g (e we9orpk;vlm:$4.8 \times 10^{-28} \; kg$ 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 wa:/cuilpis6 .pyc4sx * s lost during a reactiyx:*4i./suc6i csppl 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 kilogram of mass at restt b6z7sr77u6 +kidw fu 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 drtg duxnjyk : 8-,aj*h9opped on Nagasaki in 1945 killed 140,000 people, helping to end World War II on the next day. It nj8: ahxjut*d,-yg9k 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 ie vnifxr3 e9,jk/8wv)s 80% of its total energy. What is the speed of tv/k iw8n9x f)vje ,re3he 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 :ajybu 8+k/vc proton is 80% of its total energy. What is the momentum ia8vy/:+kcbju n $kg \cdot m/s$ 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 nv;n37(qlqx t MeV) 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 a reaction in 1r7;j ye6byqf 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 eli/lasw13z kfjqh* d5 (:vy9h 6wj1 qbbectron 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 mass fr7p:1 mlmbfgkm.q+t 2kom rest to a velocity of 0.8661g.7p+qkmf:kl2 bm tm 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, sl wm,,z 6mev5$1017 J$ 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 accel8 bfa f-glbj k+9bp3l4erated through 100 kV. By what factor has its mass increased with respect8fbb 3+9ka jg -pl4fbl 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 fw;5/ tzso.b qf4slf9zrom the Sun at 0.95c. You measure the speed of light from th9wfl5zzq./ bs; fto 4se 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 relativjbjht/6x6r:l8 rnpugqpr205fcz 8i (md. 5dze to the Earth. If the ships are headed directly towl8 db0 p(:txjzq6g .rihd zcj/r8 unr5625 pfmard 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 with a sper.m-ka*v. ;)*c g( 9l/jmy tybgexuvred of 0.80c. How fast would light travely..)*km-/jy9*( xre;gl mrt uvcvgba from the 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 f ki eo.b+(sigdd /81: j.spfgcrom the Earth with a speed of 0.80c. The spaceship then fires a missile with a speed of 0.50c relative to the sd.s oegf c8.+gidkjpsi1 :/(bpaceship. What is the velocity 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 with a speed of 0h7 (mxo83wq4osm5nvmz8 rs4j.80c. The spaceship then fires a missile with a speed of 0.50c relative to the spaceship.v mm4zs xjon748or(h3q m 8ws5 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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