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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 particles has xbl+ 2ah- 7tc 2xmjev3the 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 iszpj+,h+29sk mob 9nfo

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus p .;0jm wj segdpm-:4suzo9;wconsists 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 is determined by thed2bhv plt9) 8o 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 determined by the w cg6ij.(gr2 mjesa( .yack3) 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 5ibbxqq:otw0 j (r7g)number is given by Z, its atomic mass by A, and its neutron number by N, which of the followib7 jt:5 ( x)wg0iqqrbong 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 unst:grmk,81st/qtsi 3 +x t;rtmfable nucleus, the atomic mass number of the s;qk/m18tt3rgxrf+ si,t t :mnucleus

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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 atzhcfyj b;skg6z k ya)m89x)01 om 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 sgmy83lu9fujn86 km1k table nucleus 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 neutrons ar* hvxir , mwwkmq61+s,e refek+i v16*,,sw whqrmxmrred 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 noxlt: ty0w4q-2ue8b/ acux p +uclei 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 definedhz5kjk :j :zvntx(fu;2 p/ed; ;h)bj o 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 toe6--qulp1 egcr( r a+otal mass of a stable nucleus u(r1o+q -c r pl6-aegeis 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 a stablg3zxhjq. t/ 03dxhg3ze 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 c u 5hhqrb*.s5mryh5 rk7s-wb *ontributed 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 per4u5*vlpfad 1fs(kd4o obk29 m nucleon 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 nioql h3, lnkm8b4q axmr1+( 8tucleon

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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 stat5c l1nz13k7khvin3 ro o;;p ahements concerning the nuclear 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 forc,4wbn, gon8o18f q33clxmbbre between adjacent protons in a b o18lmwq338,xrbn 4 gfcb,o nnucleus 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 penetratnpy xa* l.(ds;e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetraterpj9 + iivndh-,;o/kl

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr5h.gyw 6ni 0kwate

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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 avhq:t3okkd.gj , y54 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 knw,lsgrwaz1/s 3ha8,h t t g(,jsyxu73own 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 wilh4k.u-uk gb4x/m7 yxfl be attracted 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 mass ;yf6-+ zt di,j ijp9u(c5yd9v9jshxe 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 nucle pqiz,d -tl bp;s1,l+eus, the atomic mass number of the nucleul;p z,,bltdes p1 +qi-s

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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 unsta4aq+k. * h)+hnprsxjoble nucleus, the atomic number of the nucleh.)+k+n4jarp hx* q osus

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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 representslaom i.4g wr:(

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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*g0(jgu j- v b*1zjbbt*n8d ch 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 uns4. amwt*6lgoq table 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 mass? 7 nkcz ia5o6zanky223

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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, what value is consvytm/67.xh 4dgbgx5 lerved in addition to electric ch47gd t xyhblvm /6g5.xarge, 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 ofq*v(17yvj7+tnrmt t f a radioactive substance 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 nuc- e3d5qcvb2 z/4fr9,jz ipct)ui ib6k leus emits a single beta particle when it decays. Whe/)rpc e-b65i92ck 3iftju iqz zv b4,dn 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 6uqz qmd6.g si1l1 b5pa magnetic 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 uses liquid hydrogen is it ; d;0r:m71fygb ddn6d7ui ha

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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 replaced by bubble4:q; ;eixd59 orllagz2 lg iu s3/0jud 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 numbj7,iv(bm* n)fig qqb r:i5n11h v 1ibq:. mocfer 6 has how many protonj. ri(o:vv*7b 1mci5h1b1, n qfqiingfqm:) bs?

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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 mahj 9o8h e+qg:njp08ese6*bgg ss number of 14 and atomic number 6 has how many neutron9+e :h8eo*qg 6 0gsgnjj8 hpbes?

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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 arep -52zdrd1wpd 20 and 39, respectively. How many nucl wp 5r2zpd-d1deons 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 n1f: uuni1wr f7umber for calcium 39 are 20 and 39, respectively. How many er u:7f1fnuiw 1lectrons 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 39bu*smjv ):gqi f ,hr+(, respectively. How many protons are in one atsrhqiju,(b *+ : g)mvfom?

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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, respectivelks7)17pv(4n1 7rcjq ax uc szzy. How many neutrons are in onexr qn7u1z 7c vs1zk7c4()sajp 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 protonsdk8rwob4* eg -(.dlu)vyzp0m , 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 hlpts8 2 )2mzb .75jw3myfnyzthere in the carbon-14 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 numbersz1t 0 p3zrn*d 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 bindinkk s.lk yz8-vfp(zo1 *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 requirt,dnocl +,v(1*s tui med 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 alpha decay. Its atomic numbeqrc* c1xp i6tefmk3b rnp*.ew(xb 4*:r is now6i*3bf q :pwn *pexc*.c 1xrembk(4rt

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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 gyv3hi6b9md)6 f 9upuand 249 nucleons. If it undergoes alpha decay, what are the9 f6 )gbi6vup3dmyhu9 number 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 encs-qpwz8 bkj4/g /vm*ergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nit8k *-vspmg/j/4qbwzcrogen-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 unnm-ml94nc / vo9l msz(dergoes $b-$ 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, how5n9ani;l4o3;py j0zuc1 zu 0eqf1ibk much will be left after 100 year 1uy9 nczqio0lap ie;5k40jubf3 z1 n;s?

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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 that1pxq q 14* ubmmaz;;rk an atom will decay this year if its half-life is 247 y r aqbqmk1 z14u;*;pmxears?

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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 cz wb/ku5dw7z q9j*+zuertified 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 half3s euz hl.d4e08opy5 h/w 9tsj-life of 10 min. What fraction of the sample is left af9sl j4ze 80po.3 ethshw5/udyter 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 ie j5rw.hnn4gb 1 a;2vjodine-137 is 8.0 days. How many iodine nuclei are necessary to pnnrbae452 1 v;j.wh jgroduce an activity 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 initiank; (j)gn;m6;id sket l activity of e;;;stkjmg6)nn i d(k$0.24 \; Ci$. 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 c h+ (daohdjctzds x*-6k)1 h3warbon-14 measured 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 livoh 6-3)czha 1jdd(x wt*sk+dh ing wood produced 160 counts per minute. The half-life 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 m9 um9l39bwd m ,p,rel$4.0 \times 10^{20} \; atoms$ 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 ; lvy(*ye z0s ,s9qhioa $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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