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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 partxbnnqi8 8bs mf,9-x 2eicles 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 9,pi1yu1 sb.m o mizo;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 cons7hdq 3xbb9w2ij-b :sz ists 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 determinedqmv by1)10obr 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 the nsscg) gzg16ip2)y4 zhoh)a)v umber 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 atomic mass qzl g1e,v *q*8hlzp2n by A, and its neutron number by N, which of the following is corr*lq8 zpq,z2lghn e*v1 ect?

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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,fp i/ ko-.rdz pcv f-2idixl:j;u. z/1 the atomic mass number of th2p.dkic:1-z .vffoizp /d xiur; j/l-e 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 aywm,qi - c-3zhn*lxwba0 ;.uej4-p ucn 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 themfy3trzsb jh.9/,pft) g*. oy 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 atomic number but with different numbers of neutrons gb- 26iys b,wmare referred to as,6bw img b2y-s

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an elemebp8 kd2,d9pt3 es xra)nt 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 dvnq3 7cpp-8q8qee*biy1phs 3 efined 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 protog.0 hq8see 211uwqsqhns and neutrons, the total mass of a stable nucleus is alqh w .8 u1h2s0qe1qsgeways

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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 nucleus, energkt ubao6- /(cv y ft8ttfv.)c8y 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 contrib zw7nhm4.3as/v5cwb yuted 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 gz n(.n fx;l(f4nkd07sj.jm w 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 per nucl3t zo)net nb/*eon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followin8h cxjvr2c*a pb1( k6mg 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 nuclear force be w.l) w/s1v .5ohig3thmc; tcltween adjacent protons in at)h;m.lg1.vwcl t 3 csw /oih5 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 penetr)j1hl/hcik o gg:a12wate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetraterg *g.cvz 0.w,hany p1uitct 7 c3qsjy. 4b;*r

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetankko*0myig0 8g1; knrate

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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 knownlm zsoa; xsh5y3;y-0s 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 ao.py2sc(uy iw7gt6(bu k8wp3 s

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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 atfvk ;ho)d +k55fhcrq9tracted 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 ezf.(z(tca iohp2+ yvm 7) tlk)qual 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 mass nu/j m7qi+do *kmmber of thi ok*j dqmm7/+e 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 atomic numbec b8auq3+ vp1yr of the nvcp yab3u8 +1qucleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MYntxmtf()rzoc )1,7cx - 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 followin1x 5p(84 vngrba0kdaxd 7u5fuj,3l nlg is most 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 an unsf wr87 4j/sxs4f.yni7gf l-usnx3s j8table 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?3g *(xh,0jljab gatmo:s jy 9/

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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 value a/2oi0gz. viu w,zc*ca ia+,dis conserved in addition to electric charge, energy, and momentumiwvga i*+c iau2, c.0a/ozz, d?

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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 s4 j27q. um.nys+ vuue h-, pcvi/ocar3ubstance 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. Tcglari0ba47 ,his nucleus emits a single beta particle when it decays. When 7acl,a4 rbig0this 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 magneti5;ddu: naa1dac 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 amko xa lp : 0:z:+ea+-gteej9hydrogen 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 chambe*wc1lyb37/inml.q;dcp fz 6x rs 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 6fk.vgq h83v1 zigt7(s has how many protonsks3f 7vgq8 (z1tg.iv h?

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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 atomic9/ k5yrlzy2lojadv 9e -ol 2z. number 6 has how many neutrojvldza59 yy r2zo2 -/9l.elko ns?

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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 an*tc7zb ynb )g4 g2yt/rbj .lu.d 39, respectively. Howlty.ngu47bz/b.2 gr yb jtc)* many 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 ffah:xgx n/ lzxw3o9/6or calcium 39 are 20 and 39, respectively. Howag/9zx6nf/o xl wx:h3 many 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 number for calcium 39 are 20 and 39, respectivelyyqg7hr gr*6 2kx hh(ptcvn821. How many protons are in one n1ykg*78 cp6vr2qrh 2hg(ht xatom?

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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 fou8vyu- ke1ce( r calcium 39 are 20 and 39, respectively. How many neuk8ce-1uy ev (utrons 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 proto 10rdaz +rubu/e 5a+p6peqrn3)qa0m vns, 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 thegrn1/f2p )sb uqjp-0myf ;r;k 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 o.2u3;p js0g eli1vrun f 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 ener2rs/umhku,c +* *vjptze s 6v- m,kop/gy 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 one proton frsjkigxz91;aud, o ,h 7+cd8 kuom $^9Be$?

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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 al)iz)ls.5xgtfn a /x ,vpha decay. Its atomic number is n, gazx5 xnvlsft)) i./ow

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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. ios9f/;ojo .f If it undergoes alpha decay, what are the number of prot;j.iofosf /9oons 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 decza8 n,sab -idp8gin. 2ays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 ha,aiszn8a gn.-d bp2i8s 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 ) wm ox1v0 -zu(7g*gvigb woi/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 is 45 years, how much will be left after 100 yeanu;plhfx.k4: rsn.;fp h:xlk4u?

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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 yearregui2d r9nl+qnw i:b 795da3 if its half-life is 247 years5i3 nbi9q7nrg9e+:2duw r l da?

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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 certifiehvfr 50, if,prg 0cg1;qv*koqd 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. What fxcvny6+)i/h dcm i+ /fraction of the sample is le )mdxvnci/c/h +6+fy ift 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 radioactivftf:crw6; kw3 e iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activifw 6tw r;3ckf:ty 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 substaglv-3oreomj 8u -oi39nce with a half-life of 3.0 days has an initial activity of oolj 9vei 3gu-rm -38o$0.24 \; Ci$. 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 measeyg rp8d0bt5 5ured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute frp5t05ybe g dr8om 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 take * 8tbxq tcp./y j//a2n oebma1$4.0 \times 10^{20} \; atoms$ 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,qy ks ut. c*63yfcxqo6+ xq5 c-dc.yj a $4.5 \; Ci$ 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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