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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 particlezgyei u ):4p z2y:0g76ajir kms 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 5hbimi *jk ta t2;,d*tis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consista 69.wvv /8d.qae5bu qu*ai bts 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 7c .bkaw,5l:0rvk vguby 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 the numa)r0rtk2fq m1 ui5* tjav2vy( ber 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, 3 evc4ixzcx f--l,o s1its atomic mass by A, and its neutron number by N, which of the followil1e xfos4 x-ic3v,z-cng 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 frf zffst5.h ixom2au 2f0+fj/5om an unstable nucleus, the atomic mass number of thxaf5 sf 5/fotf u2f 2hz.+m0jie 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 iak*ra ay 3fc9np;k +9fn 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 tu-ecp4 fln/yn:8sd5m he 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 ato *f3fp wji jfugzo.bms;-(.0xmic number but with different numbers of neutrons are referrzw*3jj fmfg.xb; i0- sf(op. ued 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 y8 be0.w*1si7ablot9nr sikr7keg9uj5 y6 z+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 defined dth p-jhacrr*+m .*m iz929dj 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, t 9rh9resano 9:4 ow7dz 2gnz1ohe total mass of a stable nucleus is alw rdoo1se9r2 h979 4ng:w nzzoaays

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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 nuclpjrdd ktm e/f +u4- lm6df3yg9)2t,yl eus, 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 nuob4tg*45 3 mgr23+wynvlvmmlp bh 8l(cleus 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 isywa1h:f8e6mp)m e7:0p ppjx d

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy pe79i,zk bfclyx6zh o1gj83a-yr 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 concerning the nuclear fo a0koqkg-e06f iyeox(k ):vt k (.h:zwji+;ti rce 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 between adjacent proy,0k; p.52ymdt l wbfl6ltx6otons in a nucl.m 2;b f6td05lk ,yo6pylx twleus 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,jlh y;jgvt ,*uvd+rlz7cb 6d,26 ak late

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratyo1jf c;r-vp9 0km4 f wtm4atv w)u+,je

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat(/9zc 6; khvvu)(:ur usowtzxe

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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 u35 tw n 0re09y4vmaztas

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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 k2uok azh84 0eaey81 ycnown 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 attrac5+w ilb: fl+1 va1k:esdgn yr1ted 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 at0;ll: jsfoal9s2gr3oomic 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 unstkbood.)rlg+yg8 h cz(b;m44h able nucleus, the atomic mass number oyg o.4hhb;(kl4b 8 +dr)cozgmf 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 a8 o 0bhmz2hza8 p+m5sf+iohz.tomic number of t2h oz a p8hsfb.h05+m8+z izomhe 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 repc)tpd zosa 3.,ogd:; oresents

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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 thid1m w: h-p)si)bst oavyx-p2 8r) 5pte 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 unstablecqhg.ejt*0tr*z /, 8d;oudr o 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 masvj/e;z12y )*ba t ohwss?

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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 vax ftg)5ej(u9l: cn/kblue is conserved in addition to electric charge, energy, u :9eltfkgcbnjx5( )/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 substance as it decays n3 g((sh.tjbro4ndf2?

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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 of (f sctjxu7z(u591ef d24c cjoten used. This nucleus emits a single beta particle whef( tc972xjdc(useofu j1z4c5 n 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 chargeh2p 2g +kiov,gh- fhk8d 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 zpo ;r s*o/f. oq+lyp0is 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 bubble ch.k hlgrq* 3i ;7ch;apiambers 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 atomicc. *yr mwpu(p- mass number of 14 and atomic number 6 has how many protons?-c*(.u wp yrmp

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomixzu;*,(zgy w ydcbt-(c mass number of 14 and atomic number 6 has how many neutrons (zb yuw-;y(cx*tzgd ,?

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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 nu,zkkad6eq b qw0- v*w9mber for calcium 39 are 20 and 39, respectively. How many nucleons arkz eqq-vdb*9 ka,06wwe 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 anc-v1p tvl2w zk6xjzb))(w*hud mass number for calcium 39 are 20 and 39, respectively. How many elecw*zh2l ) kv-wutbv j6)xc(p1z trons 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, respezgg5mho //:/qytvp 19gde uy**x 8tkvctively. How many protoyt 9k v/vg1hd tg8ygqo5/: ux*em/*zpns 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, respeyw-5l ytv*y3 p5hj)vx ctively. How many neut35 jyt)pl wyyxvv5* h-rons 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, and elecmjj sccjazb18ppakt /0 9748gtrons 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-1ka31ddpbv 9e 4qi2.b m4 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 isotope of i ;bck0+e;puhvrt-v 7 vrsut v 1-*4rbmass 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 el dh9t2jav( d.tdvv)i0o2t g/nergy 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 requirl/,q:hd c 8s24kwf xjmed 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. b6x ** olsk/ (a*c enitlykw/, Its atomic number ist/*(i*lloby k sxne,w/a 6c*k 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 proton k(-iujs-n.v kpeyq: *s and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the djp yke: * invqku.-s-(aughter 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 nc;/see v n-.fplb)t2p ucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitroge)vp/sfpbn;tl ee2c. -n-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 6j/a2vnufxc 6* undergoes $b-$ 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 3jqrw +,hd- v:ggmd jw5da 0;ka material is 45 years, how much will be left after 100 years?rghw ;wjakdq30d :-jmgd+ v5,

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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 probabilit- x*z fivg djuavd7,34y that an atom will decay this year if its half-life is 247 yeaid x7vv, uj3zg d4*f-ars?

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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 certified ah(38:fpgh z09 qg*aa. y)zmui wgk jr2t $10 \; \mu Ci$ 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 1jp2mm 1fe )mgjpd/.lz3+ kl+3t5 fv,pffb(hs0 min. What fraction of the sample is left after 40 mi/s3 etg mpmm(vzff5,kp12b+3f. ph)dl+ljfjn?

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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 radz u7+4cl6wxkh ioactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of lkc+uw 764hzx$1.0 \; \mu Ci$?

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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 day;d4 ro9jjv ,sbv1y,.5oxmha ps has an initial activity of . pmboh,yjr v,;vj14o 95xsa d$0.24 \; Ci$. 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 woodenlnxnz6x h4o. dy8*0dg+a ggc- casket from an ancient burial site was f0 ga + xxo 4ddc.n-lg8g*ynh6zound 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 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 tak nd v. n/*kgej2gvdnm:oy:* +rc .j6qoe $4.0 \times 10^{20} \; atoms$ 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 y8gl4 i119t qy rmnbd,$4.5 \; Ci$ 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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