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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: 匿名未登录  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 particlesrcz713cy9 rl x has 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(u/h ib5oup wd-hv- vg61i1if

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c9 10m n38 u-cp/ ,le ddh3jnztuxnmc-bonsists 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 number ixfa 4f;+ap;q ms 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.rcrf8)kx4lrj+nj dzx 4n8s/ is determined 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 ato4sv;;f kz2p1frs 0htu mic mass by A, and its neutron number by N, which of the follr ; 1szfsvuf;4p 0tkh2owing is 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 emitted from an unstable nucleus, the atomic mass number .fqu9lo9 /ghsof the nucleq.suo99g/ h lfus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of proton7*g1k.se vetfc4k 7m*:ronmft3 kkv. s in an atom is

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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 gw7unc;+r/d2lht-os266 y 8 js/re2n yqn orv 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 numbers of neutronsn-u*ss p,1l:nx+vn imp5 i* tp are referred s1l *-n+xnint:* vp,u ms5ppi to as

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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 nucd*eo:rama8 a 1 0hkt8dlei 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 definr :;smx grrv*v8-- avaed 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 1(9go /deho wrof its separate protons and neutrons, the total mass of a stable nucleus is al wh1g( ooe/9drways

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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 a stabirj5coxp2 ds0 s,sq -+le 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 nucleus is contributed t;8 rj66*kxfxlbnlk y/o

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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 nucleo4be.q/ j8a4gpsv8g rojm(2pt2h ud3on is

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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 nucleon49ygpy4yk )7r w01ts:7yli:m nsmima

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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 nuclear force is falsg;3:g7 q 0bshlvr 8 e*iu;obtae?

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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 between adjacent protxaws bv r5cvvp b)2d;8wo bb 70r): p+sm.:hzqons in a nuclxza v2b8rb ;): psd:c.vpqm0b+srvob w h75w)eus 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 penet o ii,rm-jfle wnxiqh. 34s53)rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetralmx1xt :*vio5 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 penetricfez* )/lh7 *a,wql k/,ihzoate

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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 known 0 slbxkvlgi(wat0l l-0pu:++ 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 kjs1 hnpm47mn-p2u b;e 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 attractr:pu3wtl u w6.ed 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 afj5gl+ y5,vgce b2-y4r *suhxtomic mass 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 dqt ny55y(hd* unstable nucleus, the atomic mass number o5n5hd* y(yqd tf the 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 from an unstable nucleus, the atomic number ot; zhtw ,tfm:4f the nu,tt:ftzh;w4 mcleus

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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 rs 66rw;ad-r k/d)lrek epresents

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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 i x0h/6zxs)g o)( mtmp1m*m hzus most nearly the same as a gamma 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 u7re,a iy 5-iifgg2si/nstable nucleus,

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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 most maso;2zs*d84s 7 7bitmpur sl a 9(vu;fsps?

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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 d+a eshgg5z s(2url3u *1li*, *aegla ,;mkosm ecay, what value is conserved in addition to electric charge, energy, and momentug+,m2ssu5*lg1ksrhm iu*;e egla* 3la, o (azm?

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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 substan,y e4r.vc4prxhi vf .;ce 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,2hy9 onp f3fs4 carbon-14 is often used. This nucleus emits a single beta partif ohsn3y249p fcle when it decays. When this happens, the resulting nucleus 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 magnetic field to curve rqav(lgaw82 + 1wwb*kns.q+wcharged 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 uses liquid hydrogen b5c;u;vrl3:s(bkb lgv ah++j 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 been repla wjf8s146g)kjlh ki3dced 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 haxz+uo, p y 0tvwok*+ff/8gy3 ds how many protonsof w*fk3+t 8ydxvu +y/zg,0 po?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomict w 5iry/7pq/t mass number of 14 and atomic number 6 has how many neutrons?//7q iwrtyt 5p

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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 arl 9.a/vq4ajr+ 6peicc e 20 and 39, respectively. How many nuc9+.6/p4qejcl vrc ai aleons are in one atom?

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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 whwwm.*xjb 15 number for calcium 39 are 20 and 39, respectively. How many electronsw mbw wx*.h5j1 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 forx;zy ul.4 vjz1 calcium 39 are 20 and 39, respectively. H41zu;xz.jvy l ow many protons are 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 for calcium 39 are 20 and 39, respectively. z pz 7qb -c66-noltfc6 How many neutrons6of6 qt n-bczlpz-7c 6 are in one atom?

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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 prbx5d9yf5ngvh8f7 :*h cou2tcotons, neutrons, and electrons 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-14 nucleus?pcqe;8 qrz5z2

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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 numbesap 88vp3c7stx1djqxb g9i+ *kh(p4b r 15 has an isotope 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 binding energy ofcbymrte+nqi ;ly3h*u- 3g/( t56 lbak $^4He$.

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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 requiragy)42d l q+9do wn4mhed to remove one proton from $^9Be$?

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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 albhm;/5 )fdrhb -9s;rwk(rxn 0ibx ,oo pha decay. Its atomic number is o 5/xok)xbrnsrhb0r; - ;w9fm ,bdi(hnow

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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 alpvs u*u35i 6or5r qmirrrw 0flt6;g2 6sha decay, what are the n62w* 0rfo; 6t3v6ur mr rqs i5sui5glrumber of protons and neutrons, respectively, 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 decays to a nitrogen-14 nucleus by beta decay. How much 4n0 9lfjmx*pf energy (in MeV) is released if carbon- mf*fxn0j4p 9l14 has a mass of 14.003242 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 under ;io,9vz43s6r z osljwgoes $b-$ 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 m b0p: omn6dof2hl0tt3uch will be left after 100 yearsotl0b phf nd o6t:3m20?

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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 t3:f o,slr a3v1gz(f1xopnl5mhis year if its half-life is 247 yearg lnofzla( rm1v3:s f1,p3xo5s?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was a4 ln6t*v4mnocertified 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 has a half-life of 10 min. What fraction of thqu 7icev3f9q+e sample is left after i+e qfcq9v3u740 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 iz 4y7rpfy j, )ltst,r8odine nuclei are necessary to produce an activity r7,tr,tfp yzl4 y)js8of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substance hr +axriop+:3 .ymsc/ with a half-life of 3.0 days has an initial activity of p.h ym:caox r+ir3/s+$0.24 \; Ci$. 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 in a piece of a wooden vgk5 i ((0/g1unygm+qx qi2fkdt* yn 9casket 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-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age( idg2giq*y0 kg( 5vxnm +nu9/tqyk1f 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 taftlc trwtl7 m,wq-.6 u( gg7(mke $4.0 \times 10^{20} \; atoms$ 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 takl, ((j7ks to14juyqs,ciy2 yja8uuv1e a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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