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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 has the least makj4w.g/y wv w9ss?

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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 9g8lb8a 2fw8abhqyg i b8,x iv7p,wq6is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus co /xiwgzw . nxxg)v1.280deatonsists 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 det(8)pkpqd. nwjermined 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 determined by hz-xt3r o4-l hfzx8 .athe 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 ;i6tw53i raruZ, its atomic mass by A, and its neutron number by N,65a uir3t;wi r 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 unstable nucleus, the atomic m/a fqdy;rj)5 cass number of the nuclj) frqca/dy5;eus

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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 aton d o07 p 5)am.j8z8far70cx;oo ontk/d.av vpm 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 t f u7q3w.glz gje-;(hqhe size of a stable 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 ato8v ,t*k9 4vsx1 wnui/eyjwbk9mic number but with different numbers of neutrons are referred*wnx 1yjk kwib8su9 t,vv /49e 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 nuclei j+-s bgb3x.jc 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:ls2c((c e5hmpr aky* defined 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 i*y4 fh ybip3m.h7z+hof its separate protons and neutrons, the total mass of a stable nucleus hyzp.i3 f47 imh+y*bhis 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 /.amsodexf a (r+rd61 +l(rgtstable 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 nucleu,d 0v4rpmy :ifs 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 nhs 1;sj)9lu) cln5k j99qgymnucleon 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 pevzp * )r5egsm9 42mp 1wccn.qwr nucleon

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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 coxai8mpcce :7v1gpd6qo0 9 .rlncerning 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 electrostati 1iv40m;oivl (z 0egrlc force, the nuclear force between adjacent protons in1rivge(0m ovz4 l0i;l a nucleus 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 penetratd-fav3jds u8 hnyd,i7 b s6q(2:dt4k be

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateze2aq34a h )6 qlc)yzf

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraeb. b48udy6u8 alj1olx8wr3v 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 known x2 ,p e;9hjcgtov rm7: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 as5 z3mcepi f wbf,6:-ho

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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 att*t ,.cy: rawb o+wtji 11vao3nracted 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 a; kua0n8f*ovqtomic 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 unstable nucleus, the atomic ra6jbujmo5 0*mass number*j0oj ua56 mbr of 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 r xpls6,,(hwrunstable nucleus, the atomic number of the nucleus hlspr(xrw, 6,

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - m p3vr3(vd 7tknupqa t;p*)3t MY - Ma) x 931.5 represents

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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 gamma raj2kn :mp8 qsq-i4lq39jue* jty?

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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 emitt2r,yv88d j;/o dg lnjhed from an unstable 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 9e/pf,ll.dw ,3tsws c most 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 rad0m 6nl1jy(awgz m. 5nh*xejc -ioactive decay, what value is conserved in addition to electric charge, energy, and momentuml5 m.6gj(j0*nme1hcn-xa y zw?

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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 substance u3ka eyzbp gm:px2:e3.kd.. tas 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 emput8/ ++sbofm jr06single beta particle when it decays. When this happens, the resulting nucpemfj6mr0b/ o 8su++t leus 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 fieltohfoim h x61u.ez4jxa./ol:/8 os ; rd 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 liqu )n; :gt2rwmhiid 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 been replaced by bubbleebh,4xu t+ 8uvg1 mws) 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 ho xiby,o+4zvf xcqe 24+j;p r)xv( f3sfw many protonsj xzferfvyc4sqb;f 2i+xxp4 v,3)+o( ?

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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 has how many neau 9zlkiyy8n 8 ,5b7elutron 7la9lbkeyu5,y i 8n8zs?

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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 numb4;n 0.bx hjxqzs1-zte er for calcium 39 are 20 and 39, respectively. How many s 14hxjq;bnx z.e0zt- nucleons 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 number for cq5* amb9q, fehalcium 39 are 20 and 39, respectively. How many *qfh,5e 9qba melectrons 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 cal8x qa2z 2fe *wy,,x g/kv9ctrmcium 39 are 20 and 39, respectively. How many protons are in one atom trwf * ycmae,zxvxg,98/2kq2?

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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, respectivnsarz)6bcpf 40tw ((xely. How many n 0a6 wbn(p ftxc(sr4z)eutrons 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 protm12 :qrjon(p xons, 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*y oxl2kg( u.r 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 atomic8v4 :hqy;s8kun :ifh n number 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 pk7o9mbk )legm1 sy5/66txnsenergy 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 onboh wu0y;j ql44n, -jbe 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 )4ixtjgs(i7 hps. p2o number 88 goes through alpha decay. Its atomic number is 2 itx7ihops) jgp. s(4now

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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 protonsxu3qvx6u +momtn rl*)8h 1/zb and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neu1 6mh3xu mv)8t+u lz*o/xrbq ntrons, 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-14wq2 hrg f 0lrid8+c2rrmro 640b9xf h/ nucleus 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 o0 2 dqg6chw/9h0orlrxrrb r4f+m28i ff 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 undergoes uohqfwq5 w ,(tn +j8u6$b-$ 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 :nu dnq-3,oew45 years, how much will be left after 100 years?3n ,e du:-wqno

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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 itu-)u+hpu2v bf; 4a40vft lq ups half-life is 247 h -uu 0f2tbvuaqpf;vp4ul4 )+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 was cmeq- +:1+ viz(k (:gtgofrk ktertified 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-d 99 o:n2 xbn:t5 vi sgll2kj4k.lb1tdlife of 10 min. What fraction of the sample is left afte1n:itngt xbsdjlk:492k.v 95ll 2 dbor 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 0o;9-od 9cq(ktvaradw0pe4h days. How many iodine nuclei are necessary to;9q 0c0ko9-d(w a4av hpdotre produce 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:mc c)lqm+,x(x jx 6+exr5ytt 3.0 days has an initial activity of (r5+x xx6)c:xlm +cyqte,jm t$0.24 \; Ci$. 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 avreo1l6j9djq81fv /11 rw t eu 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 a9 1qdj v1u68r/telr1fjo we1v 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 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 ta 40dyuxfnfhyf1ju.1(ke $4.0 \times 10^{20} \; atoms$ 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 t9ujh rs.th je 28yz)($4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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