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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 has theu ,xdr f:3y bja;psw4* 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 isy(qj 5dl1;/q 50uq4gpiyexem

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists y f2) tu+5vhlvof

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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 the number of:naqo0h aaf9k2-o56 uj 6rhpt

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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 b.a:mlgsc8 d:w) j cuq0y 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 give4 a7slv.gjmf6n by Z, its atomic mass by A, and its neutron number byv f46. 7mjalgs N, which of the following 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 uns fr d.:ozo 9toppag3u4r0z ,i.table nucleus, the atomic mass number of the dotro. zu4ppz, :f3 og09air. nucleus

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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 rj5.0ag8 9y l1c )tfjjww ;rijatom 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 n f/k1irk3d52s axnw8th1bs k 9ucleus 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 ehzpz+)o.x*0m /ox ikbut with different numbers of neutrons are referred to asmiz /e. k)hxx*0p+zoo

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an elementl qy4g(dq) zq6 have 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 defi*cp 2a5qdb 1pqned 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 *h)7 lq() isq oylk123i+ey wh.qiouiand neutrons, the total mass of a stablel oq +lyiq)7uk yo)1 iqhi.ws(eh*23 i nucleus 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 a stable nu,2wrms kx/3sgy2r4,m /g pl fmcleus, 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 nue:j 3e4sj ( b7u o 4tce*j-:+lbsi6-umds elfycleus 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 nucl5vu-f*gj(w ;: ovktafug( 1y ueon 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 nucl +gtxqw*e5 8gbeon

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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 false1.oanodog r8 ws wk53;?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatictll cne:ghhz6;/(6 tx force, the nuclear force between adjacent protons in a n6ht xnlz/g;t 6c:( ehlucleus 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 penetrate/3w f*rg/to re

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrater ,zwo6)l5jf g

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrxidsy.v, fa2(ate

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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 o 9paf +emlvrkgy)2- 6known 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 known a9o3r0p mo i5qf8hj3q ns

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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 ae5usj -jv ce;n+cwsgrpzd +9:+l0zw3ttracted 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 mar-uw ;4 uet7xxo0. ojgss 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, the atomic mass nz;-q3h, 2n4e- hhjfd t+jw gk9y sk7wvumber of tht;zyqn e3h h9wsv,g k dk+wf-- jj247he 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, the1j-q7k lll 6hf atomic number of the jql71 lf6-lhk nucleus

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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 represents+g:z; ykl q,tkugb49r

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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 -l eb7w6whgtejxgh1o;kpf) l3 1 *f/ sas 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 ujxg8m; q+2.w rfowah* 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 moq3m1mhvpt10-cixps e,:wt m-s i-hg7 st 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, what vaxd*;a)z2 ys hvlue is conserved in addition to electric charge, energy, and momentum?2z;h )dxyavs *

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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 s*ucu;mi6( om0hioq*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 nucleus emwiydxtq0v ( zqw(li-0t*4g2 dits a single beta particle when it decays. When this happens, the reszid* -t0y(d tq2iv0 (w wqg4xlulting 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 charged par 2 ;rz4jmbv)7nay1a pgticles 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 wm tj-b(pb q*).smjp7g pn7x0a

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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 bu0qj5srscnm.txmztxs 4+0o3 0bble 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 mas )j(fu9*iaxu or+kj .fs number of 14 and atomic number 6 has how many protonj u).k ( firau9oxf*+js?

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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 numzhpngd*5)m f-u-ls b7ber 6 has how many neutronsfl5mgsz b)n-7 dp* -hu?

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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 p twpb4a2b.hu 6 3:ktxcalcium 39 are 20 and 39, respectively. How many nucleons are in one at p3bx4t2pw: .6ubhkatom?

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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 wwl, y yzu7dk30h)m l(are 20 and 39, respectively. Hzk0h)(wd w,yym7 ul3l 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 2s f,lov5r3bpi m8s94 zcg( r8 e:7ezz)cfawk/0 and 39, respectively. How many protons are ink9sgm 4ba c8wzc 5z f(o7e3 p,li)rf:vre8 /zs 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 forn2 )rdo*pw 7/+pf:i7hd k mmci calcium 39 are 20 and 39, respectively. How many neu cink2f+ddo): p* p77/rm iwhmtrons 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 protons, neutrons, aniusz3 kdz+: ,-q7xrcuf;a p2 zd 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 carbonj3yiqemoo75p(b, kl 6-14 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 number 15 has wl*/n g /;qc h1y,wjvzan 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 bindingtobk1 lb(t/- h 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 f8 vthu5h ke*m f,27i/z*p uaclrom $^9Be$?

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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 6id;3if nla wmj2;nj;number is nm 3f i;j26;ildjawn;now

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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 sr;j*l4nu*cvnucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daugh *j4nur*;lsvc ter 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 nuc rhcq 7yef(j1j0t 1hw2leus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass ofjfyh1(j 2tc qw01r7h e 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 undergoey;m whe 8/cu4k b/p.xvs $b-$ 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, hoqdf p(+(qvu6+5gtniue*m c 0 nre d/7bw much will be left after 100 years?upb(u(g6+inmcdq/v+n* 7ee f rq0 t5d

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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 a a-sb1a lru:m,n atom will decay this year if its half-life is 247 1ar-al: b mus,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 wawnnx5vtbs0 ()s 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 has a half-life of 10 min. What fraction of the sdq/xg u7ia ,j;ample is left after 4 dg;ia/,jqxu 70 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-og-u f mi4ejo 2((gc5j9li xh. How many iodine nuclei are necessary to produce an acte-jif(- g 49ixhj5ol(u2c gom ivity 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 qn qh 9n)vt*5han initial activity of h9 qh* vnt)qn5$0.24 \; Ci$. 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 caske d *ejlj:33sic;i*z ( mwbdm7e.+brwj t 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 co3me i*wrjwb 3 *.lij:dzc7;m(+b ejsd unts 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 takehdd6,r;: tpn1(ziz vasq0 z+c $4.0 \times 10^{20} \; atoms$ 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 tak axmrgo/sypu 72o((0te 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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