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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: physics   总分: 71分  得分: _____________

答题人: 游客未登录  开始时间: 23年05月01日 14:22  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  
  Which of the atomic particles ha(sh* yp0wkav 3t6 h*dm;uz(yrs the least mass?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom is (caxjwp:hm 59

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consis,toflso/+ nc ;ts of

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's atomic numbe1r:k+nv im,kb sydr*) r is determined by the number of

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass number is detet,wlz12 fr yj)r lmz(0rmined by the number of

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, agd 6s:t j1l0gb(bvo* nnd its neutron number by N, which of the following v 0gs1*dg jb lo(t6:bnis correct?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emittqoqy gr c.p. xoyv9f90x;qt*6ed from an unstable nucleus, the atomic mass number of the q;99p coxtq.q6g .yorx y 0*vfnucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in an atom is:ur6pr 67l6batkud r3

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  There is a limit to the size of a stable nucleus;(, nlu6b00ma 8n mzuz* lze*szl s0fq because of

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same atomic number but with different num-h+pw(c99yoj j xm;1b)k r qvbbers of neutrons are referred to jy+ovbhb wxpck; (919r j)-qmas

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element have k(b0ko2ly(zrk w c29y;gu,tty7ll i. nuclei with

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit is defim ,xt*i+8fjkbned as

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses of its separate protons and neutrons, the total mass of a7 xwtj ntq:q66 stable nucleusxq: t7j w6qt6n is always

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to form v2,p8oz4w 8+kdhvkgc a stable nucleus, energy is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a nuc4-opwznng d- (leus is contributed to

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleon icc184qdk p a6ms

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleo moa0,v l49z/ 5ma6jdbod4stfn

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements concerning the nuclearca 2 fn8dv3n u lq0kk.)q+nj8b force is false?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic force, the nuclear force r(/fyve os*r /between adjacent protons in a nuc*osyf er /r/v(leus is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetr)f6iyy wb.5s 8vtw, seate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrae*qo zs.34d r9iasus /te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra6 rg5g:5l7uk n-abxzu te

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also kc7joi6b8far)i u2 e5lnown as

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also kj.,.pfzte x5o nown as

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will be attractedw ig c+ jeg7lad w:qpe.y5sf 635akp6; to a

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic masqxc4 q0p9)dab c; km0un-dh8b s equal to

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted from an unstable nucleus,go-l9)s xte 2v the atomic mass number of -g9lseo)vx2 tthe nucleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted froj m095lpux6-9cg qi2rivcee2m an unstable nucleus, the atomic number of the nucleug5 ri-pqx6uec 9 9cm liv220ejs

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY - Ma) x 931.5 represe 8dw2-,b(q:iadarxrvnts

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is most nearly the same as a gamm y c)omsq *2(6ard;dfra ray?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is emitted from an unstable nucpp2 8 v+/, czo+8uhoucw r,bejleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the m5-tccqf+k 8q m9/p:dfn tn*v yost mass?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radioactive decay, zjh/s( v+fnv,what value is conserved in addition to elf/,s jvzh +vn(ectric charge, energy, and momentum?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the half-life of a radioactive subst0afg ep273401v uwoc7 ru(h(,vr hg)eu pwyssance as it decays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often used. This nucleus emits a sin9t4bkzii m l vp: k.(,(2addykgle beta particle when it decays. When this happens, the resulting nucleusa4pt idymkvb .z2,lk9:i(d (k is

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses a magnep ,/9 hz)j)ooa/t qnf5(xclg ftic field to curve charged particles is a

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that u4njr 5rkf,-iht- hog/ ses liquid hydrogen is a

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have byn 9a n gmm8px3w8(b0ieen replaced by bubble chambers because

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 has how many x skk6*cc*6 *d-i zwtaprotons?cdx*tsc a6w6-*kz*ik

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 ha) kq/dsnnj- +ts how many neutronsj- tqn/+nds )k?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 .x (/jmoqwzb,and 39, respectively. How many nucleons are in one atomm,(qo./xb j wz?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 a hji(7/ru8m 8h-hgmf -pc-9 k;czged4pf9j yqnd 39, respectively. Hg pmhe hypgm-c9;-z /-f7rj8q(hj4k dif9uc8 ow many electrons are in one atom?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, respexavpgwx t:tb/90l82tctively. How many protons t/tw289l:g 0pbaxvtxare in one atom?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number fort uhq9)7xpzn2mvyrx 8q ,/ z*x calcium 39 are 20 and 39, respectively. How many neutrons are in one atomp uz,nm*xx )7xr8qhv/qzyt29?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a 93 Nb nucleus, the number of protons, neutrons, and elepo glg;jb/8 9xctrons is 41

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are there in the carbon-19va zl-9s.1ea c k.ttrh/s :rh4 nucleus?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an element of atomic number 15 has an iso*evj;x /eoff3 ysjdhi /r: bx8s4 a: o2it;9vhtope of mass number 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the bindin,umbh0lznytb35 n(:tr r 2on)ugb(p8 g energy of $^4He$.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is required to remove one proton from eqd/ 8;l emplbf(*t(v$^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goes through alp6yw+c 9 a +wukev6,w82j hmaevha decay. Its atomic number is nowm, hev yv+wkuw 2c9+6wa8ea6j

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protons and 249 nucleons. If it undergoes alpha dat+7 8wlw6cllqlgai.6ls. v( ecay, what are the number of protons and neutrons, respectivelvl7c8ll 6s l+tql(6.wi wg aa.y, in the daughter nucleus?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decaa(jllf61w r gzw;-e/r ys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.0(e;lr- ajz1w /lfw6 gr03242 u and nitrogen-14 has a mass of 14.003074 u?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 6 undergoem2zc)kqs- z7 dq7axj)li n/pa-;0qpzs $b-$ decay. Its atomic number is now

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the half-life of a material is 45 years, how much will be left af,grbr6m, -z afec .y,rter 100 yearzr6f-race ,. , ,ymgrbs?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the probability that an atom will decay this year if its half-life is 0h8)nkt co;ax4 9u i9hivhom124 oth1hxha ;8i09i)nk 9v4mouc7 years?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wa 6cv9 s:y2otyhs certified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample hf*b/xx d8, usd llq8:yas a half-life of 10 min. What fraction of the sample is le: 8xs,l*bdydul/xqf 8 ft after 40 min?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half-life of radioactive iodine-137 is 8.0 days. How many iodine nucleh sa.w unn 8xoeciy7l)0wqfa 9e5 1x29i are necessary to produce an activity8q )s7h2ie0l n5au fwx nwe.ya9xc1 9o of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substance with a half-life of 3.0 days has an initial activitw p1z7nd1b0a- :e3a ryqlbs)yy of -0zbl nr7s eb )wy:y31aqd1pa$0.24 \; Ci$. What is its activity after 6.0 days?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The radioactivity due to carbon-14 measured, e:t rmq1p9qio 4rne; in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-lifremirq91oqt e: p,4 n;e of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it take luu*vo2d1p: wigb:w0 $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it take a tfev4pdd12p l3txg;1$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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总分:71分 及格:42.6分 时间:不限时
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