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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 0 d/(* yjcsyprleast 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 iq-dqs6 f en(. ga1l/txs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi1rg p k7/z2me2. fetoksts 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 nume5y(8 fe3e6vlj,, j wyy.u jstber 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 thl5mtrdv(lq kcqq+u///6: pkde 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,3bcy/gy)rik 8 its atomic mass by A, and its neutron number by N, which of gbyi8)c /y3krthe 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 hlq7 xzdj.h q.9tf 3i:nucleus, the atomic mass number of the nu.t : 9filx.qjzh hd37qcleus

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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 ;6a+cc 5 kht*ds ap,m3,ojyyuis

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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.ffo)cv l)d5 7bhgt9he 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 atomykn dy6phq1xuk/x)4( r/* hf mic number but with different numbers of neutrons are referred to asmyyf k*d(pk n6hq/rx)hu/ x41

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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 nucqac7k/ 9 pk.*bh) kknklei 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 2f3:jc uyi ;s)mgw 5xc,vdw9e is 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 o/ch6 /a onon+hf a stable nucleus is alwa/ao o/h+6 chnnys

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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, e plf y w.vf266z6q+ipdnergy 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 cons i/etxqnif;qew8 267f-ju (d tributed 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 nuc r8+gj ebihv4w nz0x45leon 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 pw,r 6b3rtj*enucleon

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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:y r 9qeqe3z -pvb,z(qrce 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 prot(c8p,6 53 zs edp;sby dhjgrthqy 01b(ons in a nujbd 8;hs( c(1qz 35pepbry,6y tshg 0dcleus 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 penetra+o7bk o9l w8 rb8qt7qcte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrated7vi x /zen wq:)+lj+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 penetrebwd)(q ( i5ibate

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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 kx ,pkm2h/ -leffxr: *mnown 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 knowpf-mi8dy6 g-nt+ bsci +w0(ogn 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 bpjsf )am8s6+d e 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 equal tobffoiij8d07j m// :o x

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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 uzr(1cg 4/-jv- h tsbybnstable nucleus, the atomic mass number of b/grsh1-- c(zj by4t vthe 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 emiten 4r :l./pmz4; ylkr4 1bzqrhted from an unstable nucleus, the atomic number of thk. r4rm4b /hplz4e: y1nlqz ;re 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 repr8ywbua-89v*.ip kd bv(dt(jj esents

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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 nearlv6 .7yj ybqq0ry 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 l p*su,pdj9x36dv u1hunstable 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 mfvu:i0qarg:yute v v35kn(i-j7 3;smass?

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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 radio(z azrjux0uv1.8 ,zoq active decay, what value is conserved in addition to electric1ou(z z0uv jzaq ,8rx. 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 ouqsv/58 t/bsqf a radioactive 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, carbon-14 is often h3 ok n /shi)q0uo2b*mused. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucleus hh)/0 *3ki oobu q2snmis

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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 paipg)a6dos ct9a * +w 4hkl/ii*rticles 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 usexzgxud (y8vy )k2ze 7(s 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 becaubd 6p()(toxul se

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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 owd:h 8 k6bd*6 nhak;x m.bb 8ab,,qiland atomic number 6 has how many protons:,h bmoi*d86d,6 x hnalbka;8kqw.bb?

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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 atomici q djcv()q/,*dkray8 number 6 has how many neutrona/,id* cvq)dqkryj( 8s?

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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 x2k-t:laxzxl(1dn e, for calcium 39 are 20 and 39, respectively. How many nucleons are in one atd:x, l l-ae2xn t(z1xkom?

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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 c37w ihok+j1a calcium 39 are 20 and 39, respectively. How many electrons are in one akh aj7w13i+cotom?

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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.d2weucwca18a l - +yjgn8,6bb How many protons a ,b wy6uncl- +8dag2j1 wbea8cre 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 massnrq4dy k lk*;w)x m66y number for calcium 39 are 20 and 39, respectively. How many neutronnm*r4 ly 6;qxk)k d6yws 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 ey.-m+dh :)u8 zulobx:luds w0 lectrons 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/pp8p*nfv3wc 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 isov :b42emvvm1p 8*f :1gmwjkvhtope 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 ofaeam z9 7xy:a//;)o vksiww + /jpn:kf $^4He$.

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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 proton6 u5 -smcrp1 hr7 rg.a,vzjxc9 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 goek;+g (gjkynogfpkq*ib0d-2 2mo0 v )ss through alpha decay. Its atomic number is now*0kgsmod0vg f -nkqig;2 yb(pj2o)k +

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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 alpi7,a3saawl9n ol/6 ktvv.7kt;llda 4 w .hbf2ha decay, what are the number of o,2ltw da/kkh76 s.ianl.a3 7btf ;4wvl9lavprotons 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 c9 ezm 04oxk:ovc0k.5 w fpgh w.va,i4beta decay. How much energy (in MeV) is released if carbon-1w c:zvc4o me5oxvihk 4.w,0pak9g0f .4 has a mass of 14.003242 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 49qg ) nmrv00vaui4blh0 l3aw number 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 7ws0v-ic-zl*qa )vgoc 0ho2k73 hxrl yearz0o s- hwrvxlql7i3) k*-a 0hg7v2cocs?

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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 probabiliryz90d,0 .:mme-pccofzvub gq1:7w jty that an atom will decay this year if its half-life is 247 y , jmqo yzuc0cm:z9 .er:pfgb- d1v07wears?

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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 certi8 mb2 t((wqk nwgrjz;,bbs5g-fied 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 1) 9cddic- oa3zwk2 .s8iv1qobs:l g0r0 min. What fraction of the sample is left after 40 mins :8q3ol9c rgsadiki 2w1bo 0cv)-zd.?

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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 radioa :,11nlma ;ju-b)ao8rwx(jmq dzl:xfctive iodine-137 is 8.0 days. How many iodine nuclei are necul daxoz,jn:-l )aw(1m1 ;r8xmj:fb qessary 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. v2dt5vja e. krsw1oqe 068p.en: 4zsk0 days has an initial activity of dkj5o kwv rqp 4 02s6ezae.81n ts.v:e$0.24 \; Ci$. 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 duezcf0y5h(aycr/ gtsd)9cp*uo k6t z;9 to 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 9p *)y/rgt scaozkyc f u(;t5dch096zthe 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 ta n)tjdc g()gx 2p(yo7zke $4.0 \times 10^{20} \; atoms$ 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 arf/ou s06o.m k er zgxxy(3d7+ $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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