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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 the least ma7oeql pruzltm,* b)1 8ss?

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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 i1vuvqekcbsi:q; a 7p 9- b,if2s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conufu6 hofb3,qx( p1p +(9s ifhisists 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 numb((j*j 4 van(suohs*dber 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 determined4 uc6w3z zev/3zn,c 7(qok tny 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 is given by Z, its a+bnkyf/v) x1oouhet9f afv d7 5- j*k*tomic mass by A, and its neutron numdk 5j*1fvof 7htay *nxo+b fu-)/e9k vber by 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 unstable nucleus, the atomic mass numbycd9 upptr7+ isj,19aer of the nucleupy ua,t9ij1srd +c p97s

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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 atomn nrj2 j4pyyjx9e :x-; vt0zb0 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 nuca9( fb 9 jf.azix0mo3lleus 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 nu 4jwkzuh40d j9;of(rp mbers of neutrons are refejro9pzd4k u;(4jh 0wfrred 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 elemen7feeeh v )gt;1qjg5i 2t 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 def ()x vrych.uxub)dc+g qln7/q37x:tzpfe f8 /ined 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 , 0 gck.h,pkmd.n*q3 sfnmic0separate protons and neutrons, the total mass of a stable nucleus is always0 miq 3nf,sdnp 0mk ,c.c*hk.g

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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 vjyk u1ij ;4;kform a stable 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 d yxz wc+o.5v,2nj d,pcontributed 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 pjuw 2q-+vdu ixt(j swr o.n53)er 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 p*vp5nxy04 d vmmak*q-er 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 thd7 anj8tbsa/rj( z)tah9zq -* e 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+ vq54lkr9qew qqc.3 u force between adjacent protons in a nucleus iq5 4wc+k. qurv 9eql3qs

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetqdyw+ s2d/whu+ if :f/rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratkgv 71o)mqmq umm;2 d3e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr efr9r/*x6cjx3 p6vnxehp6+ fate

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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 +;6drji)w+ks)yw mcz3v8q xe known 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 g8 lm3j3 co4;pao s6w8p ;6jybzzr.jpgu;x6 bknown 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 ben0cias:z+qp+ 56 )fx*e bpz hs 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 mas;9lve 3amumxe2f7 8nrs 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 ufi3.akz52fv , the atomic mass number of 2k 3f5.fzi uavthe 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, th em1/h k85e+rf ulu0eze atomic number of t8 e +z51m flkue/0reuhhe 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 9313n4em c trxk-j.u( c/ad:a5aj .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 nearlys4 q1 aerdjq51 the 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 emittedmfkh5 o/*0x)ct h5cpb 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 tvj 6 +fe7z.bl*c v7xbayhk8g p a/o27dhe 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 radioactive decay, what valu r4xcix95 c8 mvgc8 6z:eabf3te is conserved in addition to electri c 6c8:fb g 9tmvic8r43zae5xxc charge, 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 radioactive substance as it declw*dbrypm *:h mgi;h(w0 x o+1ays?

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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 single bez.rx : cvp:++k/s) em0jzusirt-djo l 3:vu4o ta particle)3u -crl+iz:: + jt/v.jo4:m espzur0dsokvx when 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 detectori x g3rbja8ut/qn82q4 that uses 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 uses liquid h2 13h-nmk w::il pfrshydrogen 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 byg hnuk7d1ry z)r;2 9pc bubble 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 how many pr ,pnf60 6(yhpwc9lbkiotons?k(pb l6f6nc9iyw p,h0

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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 -7qhbu mwh/ :unumber 6 has how many neutrons?w u/q7u- h:mbh

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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 5kg8.ia2 ;jcswc qfa;9gp wo+. How ma59fgqw .kjw c s;;gp+ac28iaony 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 mqaumgl8hossew5 8+ c.4rz h 4.ass number for calcium 39 are 20 and 39, respectively. How mzgaso.5h44 sqe u8 m hl.w+r8cany 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 n8c. 8+xje- um/fi:2 p1yq:iecvq 9utvw t-rivumber for calcium 39 are 20 and 39, respectively. How many protons are iepi9m+.c tv-2y qiw uu qvf:tve1rxcj8:8/ - 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 pb h63)dpmi;x, sc00dtray7obnk*j) and 39, respectively. How many neutrons are in o30jt ,)nabppy06b idc hs ;*ok)dmxr7 ne 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, toy 3o ,)7xw.wywlr2a zhe number 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 there in s8w .6 slpc/qm-yne+l.kq;oh 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 6q/g+ou9na 65q htbp bnumber 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 energy of askstjdw .0a06n t .ws 1)ter;dyx :x8$^4He$.

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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 prr 4-o6zchtbb;oton 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 zma mg68 /3 kg,k b,qsf4k5ukonumber is now/kgk8uma3 4q5 ,gbfm6z,sk ko

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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 abbewjbd,l .* y;8l5sblpha decay, what are the number of prolylb5 ,bj*.e sbwd8 ;btons 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 degnx v0na 73lv1;- dgefcay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 -0v gfe3d7v;nlnxa1g 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 numbe-m 5 9sgi8b( wlt-bbchr 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 a material i 4y8/ofswsu e5wcjs 54s 45 years, how much will be left after 100 years8 j54es4s/fuo 5wwcys?

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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 thi69-m 0ofx vltw// fduns year if its half-life is 247 x69w d0ulvof-mftn// 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 certifim z oj5xq.mtc3a-tk en2 0-*.leihp,k ed 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. W8hgl,z9p ) yh*vlnx9ffd)7vjhat fraction of the sample is l,l9g)ff7 dy v)z pn8jv 9hxh*left after 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 m/ h6a9 6whkmsxany iodine nuclei are necessary to produce an acas/mkh 69w6 hxtivity 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 initial acn ) o,o e7:fyk,8lts1x7rtiz p7.oipmtivity of ozp ,i7tnk :1 o7fmp8r7 .xtoye)li s,$0.24 \; Ci$. 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 injdof1zkexx.; q4 e10 q 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 produced 160 counts per minute. The half-life of carbon-14, a beta emitter,d z;q4 0ex1ek.fjq1ox 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 taa-r,hxqd4 x*ql: r39(upunqcke $4.0 \times 10^{20} \; atoms$ 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 a5(fqhx19gxccx vw2 ln 9g7e i-jj95xk $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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