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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 the least ma y,qru0b.w0 qgss?

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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 ijzr.1reky ap;h7++n ls

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons ) irpjw6l3 el+.ou7lfhh)+ jnists 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 the num5 6(k p-opnrqwber 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 numbergv+,jrd;i2 0aly;;ul6v n s kdi8jgn2 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 *rxama/dniji73l9 z ) is given by Z, its atomic mass by A, and its neutron number by N, which omn3r /z*i7d aax )li9jf 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 fromqr*/l/bd44k a 4o1aeui:vsbf an unstable nucleus, the atomic mass number of thbo 4au1ar*4 fdv4e/bikq:/s le 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 qwpf)s0hvtiew :6w*(: mio 2wo) k5gy7l/vo matom 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 654lws*e-ka mq)scoo 5cd7d kof 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 atomic number but with different5sktb f33ibuv e-: :r;heidc2 numbers of neutrons are referred t5; ekr b23dt:vuiei 3:s-hfbco 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 havfo(r:v5b5jthe mg1 m0 e 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 defined7w vh g5llgfux 2;5/gd 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 t7al/v qmdz;c *otal mass of a stabmcd ;zql7av*/ le 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 nucleusy dxe m ;ot)1z5tiuktq,uk21 ., 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 e7f)dv:c5a l -a1py2ncrd3z v yoi1y2is 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 p,bhsq 60xlb,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 nuc et+*w..ghht2 eoeq2i leon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followindklzw4 j7nt 5,g statements 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 n/l3j cbm2)s 2lk.duf buclear force between adjacent protons in aj22b s.cmlu) dfklb3/ 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 penetrk*uw-*5f q svyd6 smt/ *dkj ;q*;bmtwate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratedd w 2*g2atg6y

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra- qq3 8yfhaapbz2w i;,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 knqb 39kb.5 p tra9lrtk;own 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 know8zzk:+n1f 9 1. pkirgflwxsz1e57nf gn 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 b j7thwx d,v7);pz:mwa 1 v7zwde 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 atomiwaq)wix 9uc(8 fh,0zvc 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, t0--gv f6+vn v zz6lbj,6w yfdihe atomic mass number of the nn-v-b 6g 0w6j,+yvfi vldfzz6ucleus

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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 atomi c dvssp-p*ww0lj)1u /c number of the nuc*scwl /-jwpu s01)v pdleus

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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 r hg5y*dgc0e x3epresents

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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 r : uyyry0qkf7 4oa-,lmay?

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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 unstable nuclybolg6p) 1 9odeus,

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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 m tchqp6xm+7 tt; umkv.xg* 98tass?

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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, whatkl-nud may(3/ value is conserved in addition to electric charlmky3d-(/ u ange, 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 of a radioacti88m5j9akgmrh; g ws3m .s 4ldh+p/ skjve 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, car jinfuu rvjs) e1wps:6h3f ts(; -dn*.bon-14 is often used. This nucleus emits a single beta particle when it decays. Whenu1t)rd fvjse fi; us3n-6.hsp(wn:j* 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 usep oob vfq+3ehpx5xzr/iz 5s)mmr+:44s a 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 us hztc.vj-(sfr 65v;n :3 ayxgyes liquid 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 bubble chambers be x0j1 e8vo8hyrcause

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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 how 00: hlwg3qrnp xa0 jl2many protons?lg rnj02hq:ap30wx0l

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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 num xpu:kw;ikapv(z(e)l:mtt7* ber 6 has how many neutrons?wlik (:a(mt; )e7k: tpux* pzv

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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 are 20 and 39, respectively. fjj*n a 16bles8(vv j* 2ou-ab How many nucleons are in o8 (1 aj2vuj- e ao6vbjsf**lbnne 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,;d*hajily m 6 calcium 39 are 20 and 39, respectively. How many el*m ;hi6j ayl,dectrons 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 number4 k; j+liw1cpa for calcium 39 are 20 and 39, respectively. How many protons are k;1pci lw 4aj+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 foxuupc bm l gg4( 3)br4 i8z20t.qql*rqr calcium 39 are 20 and 39, respectively. H840x.br)p 2(rq 4gq tl*uzmg q3iul cbow many neutrons 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 numbe lxh f+,r7-tkxb 6/3t/ugrzf kr of protons, 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 therxx g9n,yfde47:lk js3 4b8vjf ;-oqoa e 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 number 15 has an isotope of ma natjyq,e h jm( ;0:alzgw :soog;-z:0ss 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 es0l (s-xsq+ wd)zae v7nergy 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;ii- myq,dtm 8 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 number y 11j;buwe-/zi/ cw0ga5 jikr is noki/ry5ieajb/jwc -0 1zugw1 ;w

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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 alpha decay, x htqn+,m/ tlop-t7 v-what are the number of protons aqtmt7 nl/+ --oth pvx,nd 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. Hoc 5+chlc9v/ b 9zlyjl0w much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitroch+c 5lcvz09ybll j 9/gen-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 undergoes c6h ma0i ,(i v42egufnch;7w0pa; cka $b-$ 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 ir1i01 pcbp:i a material is 45 years, how much will be left after 100 year0i1 ppib1: cris?

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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 its half-lih8ias(n 3,zkf fe is 247 nhs,f z3ka(i8years?

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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 9vgkj 85w9.;ridxk jscertified 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 samplevlw5 67fd)ug/:vijql7xv - dz has a half-life of 10 min. What fraction of the sample is left a /lx 7viqz5dvuw )l jdf:gv76-fter 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 days. How many iodine nu),xfzio8 (g 83jtw xkdw:sh+lclei are necesshfds tk:wi )ox gljx(+z 83,w8ary to 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 3o 81iykmurrik-: rg/+ .0 days has an initial activity of :y-ir+ mg rk 8k/1oiur$0.24 \; Ci$. 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 carbox0ihmwtmgu x1e* )xk8eyrmy /w ; zv47s,)7djn-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 living wood pu4sz e/0t)v,7 m xw;8hxrm7yy* wegid)1jx mkroduced 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-436yd h1oywu9i sg8y5t,xwu a8b pla $4.0 \times 10^{20} \; atoms$ 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 agon 25:ja iu53n, j2qzmwm /xa $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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