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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 particlesi;.1dgnvxhg5sd bf f kre c661y(ey4- 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 58s 2(ylthrmu is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus;he0 y3+usup,uopg:d consists 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 numbe3 keh/bkb :zu4r is determined 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 iskqy4hj 17 xunghg3 fwwv9p2p/4qv*+p 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)wez7 , nfjs a x//1ipfoiu)w4 is given by Z, its atomic mass by A, and its neutron number 7/jeu/,aiw) ) o1f xw4snz fpiby 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 number,hg nr)/) lbsj of the nucleus nl)hgr )/j,bs

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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 atom iyg8-w leo3c67 dfa+ zbs

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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 sizk-.m2 d ;lhewykiye 5.um hh.)e 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 atomic number but with different no/axa+e3y :afumbers of neutrons are ref/eaa+ y xao3f:erred 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 eleme 8mfg-q1l gz5xmk7e *int 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 et: 1eykn vom0:9bc fk8v, g9uis 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 of its separate protons and neutrons, the total mass op 2hi tq;8(j/wbpn2xnhi5y m*h 6ej9lf a stable nucleus is alway mh thwlpjb nn922iyh5(ieq;*x/6j p8s

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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 n9hhyq 620r4 x;prootw ucleus, 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 n1n8eu.i0aw l-. ,y9nv pfp kfcontributed 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 nuc00szfk(/d w4a( s bq+bao swl.leon 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 bb:i4 vp3au:3 0fkdfxnucleon

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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 for2f*hcx it0bta6 +g0o( ;srd qjce 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 forceq akd:i1t 2xa2 between adjacent protons in a nucleiq:1xa2d atk2 us 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 penetran st , yjn)gpoprc8oy7)u6w38te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrhk42m-n rzj6xate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrato)sq vu 8yy6w9e

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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 du yx sqx*b .,6fq*hh: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 xjq2kbprc7 991k-wl, p ecpup.:8 mvyknown 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 wik4uee.n. e7wv ll be 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 mass eqj pn;6 sk3 .j/pqro y:kk11ehvual 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 a/kw4mxak7e/l bv x, alap7) 6unstable nucleus, the atomic mass number of the nucleuk,l alaxex a w7m //kb7vp64)as

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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 a19-ph 1xs l2 c0szeacvtomic number of c ez 1s-lp0cx2a hs91vthe 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 represent3 sco2nm, vaa-5mno/ ys

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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 xsu ri2l 03uth,0hx3x nearly 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 emitted from fzwhgt*,/g:l 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 most mass?1m+ ws )2t x/)adsb uedlq(jk.

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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 r :fqrw(j2m -l2s-jt3jm-u xrn adioactive decay, what value is conserved in addition to electric charge, xr-lw2j: m(-3u 2rsfnqjjmt - 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 sub 9h n//lsmo4zlstance 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 emittl: b6 pkm;jcu4yxs ffs w(a00z.f10bs a single beta particle whet(cy0fbsfl 6j1 0:apwmxu. sb 4 kf;0zn 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 charged parti be24-6fwjcl z:;hzvycles 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 th2,qw2: cirzx a cy)7uvrro0*jat uses 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 oqt2xym .5ifb(a2 j+8vjq x n2chambers 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 nuo ;76qr on4egwkbuy e :fai(l/c*63bxmber of 14 and atomic number 6 has how many protons(6;b:x olfro/e u *w 3cn46bkegqi7ya ?

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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 ha7vxc n(xvj3s 0dpgp2)g7i 9vos how many neutrons?pig c7xj v0( so dx3)v79p2gvn

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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 mas p4b+ m753iffceos/yku0kf l.s number for calcium 39 are 20 and 39, respectively. How many nucleons are in one atom0y kcif.u4em bl/+kff7o3s 5p ?

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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 ca.dyn,en zcqgud.:5wr.9.d bte*1 mxvwt p,u3lcium 39 are 20 and 39, respectively. How many electrons. ..gq,:e tzx pdd1m 3rnde*9v,uw b.uncwy5t 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, respectively. i(:bosmrj jq5hg):f1 How many protoijqo)rs1 hbfj:(: 5mg ns 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 n2+f 8nk.t frxt +.kytaumber for calcium 39 are 20 and 39, respectively. How many neutrons are in otk fx+2n+ .rat 8fk.tyne 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 ele6ilk oq 85g. idpla qn d2(vp-qj3,6-kih- qjictrons 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 thew:cdacez:rb3t 55v* bkg. 9cqhz e4t6 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 (5xe4a 7azmn1mls.hean 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 obaomrarf oa+1*n9ywl7* : h4 ff $^4He$.

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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 r s,ngz5bumm 49u9j) qnemove 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.tl* uyjaa:36m kqxu,) Its atomic number isk*:j)u3,atq xl u6yam 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 nl/ bxsb/rd z6,ucleons. If it undergoes alpha decay, what are the n,/bl rzsb6 d/xumber of protons 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 nuu wkgq/ f;s6v+cleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.0032 sf6gw kv+/qu;42 u and nitrogen-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 os(1lb7kbwb7 .s6la w$b-$ 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 mf9jx2 t v0.a(qpb,rlcaterial is 45 years, how much will be left after 100 yearsj2l.9vcb tar0 pq,(xf?

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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-life is 24u4 to) .xpt2 hg)z5dgx7 p xg g).5zho24tt dx)uyears?

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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 at yl9sa. 3p mrsk9i/5ud $10 \; \mu Ci$ 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 ;+b afv aygz:7has a half-life of 10 min. What fraction of the sample is left after 40 min?y za:+ va7g;fb

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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 radioactid on:+:c3)aajw bli+m ve iodine-137 is 8.0 days. How many iodine nuclei are nece:aln3mj) ad+:iwb c+ossary 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 3.0 days has an initia, :herqt3*)v9 uqh sqal activity of 9t u)qh: ,v3* qhaseqr$0.24 \; Ci$. 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 toaaqo+r l-v m pc.1/p,:laxca, carbon-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 produced 160 counts per minute. The half-life of carbon-14, a beta emitter, avxo+m1, p,aa c:/la lpq .c-ris 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 taki*.x/t :9k8sqloc0b:z d dua ge $4.0 \times 10^{20} \; atoms$ 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 acmyax54gdzn jc(3e8+ $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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