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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+ aohn x ga7,cogx- g6c7nqz,8 vanq86 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 ;ai;;hu2j8lxha k3 vb) 3bnio+qj/fmu6 bw b; 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 consists bad5,6 37 .kdoqxdaebof

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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 n s9k.prb.g, gbumber 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 thh67kit 3z f5 gh2kl0v:p5 jblme 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 nuvm * (g,a8 z-cikeq*pmmber is given by Z, its atomic mass by A, and its neutron number by N pzm,i*qeam *8ckv-g(, 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 unstms(.ze ;ln;m aable nucleus, the atomic mass number of the n. ;z;e(s lmamnucleus

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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 izbc(s2mi e a16z70rjis

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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 (9*54x ususq w5 s 7edh(jdlxlo.ds9xa 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 differen7hrg,zm,b /uzscqv x sv:6+s )t numbers of neutrons are referredsvmxu s /gc),r:z v6,s7qh zb+ 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 element have s0axmk;pd db*xp3 h czn..7d3nuclei 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 defined2 b8pz efx7et3 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 of *,mxvynd .3w*)+q ighqba1owa sx),+ *i aw *vq3hgnybqom1w. dtable 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 nucp: 3 nb n* hi;/r2wehpkmno-y5leus, 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 xh-qbw)t g+d31m 9 qlsis 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 pebs38-mvcb;u nr 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 nucleon bm4,h y/k22e.yrtpr q

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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 force is upue)4 acud1x+c0xd1false?

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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 z 2o0d2 evc rz1v2n pa25 rrwmk2,dt/gbetween adjacent protons in a nucleus iscog5,2r erzv/md1 azdp02kt2 nw v2r2

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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 0g nnwy sgabnuzods:3nl69,p1qb8u7 5 8aco :te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrj4 4c1ush9 tbyate

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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 / xeq710bffv,ggbb n6te

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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 ;t28)c nckjpd 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 knooy*d u8o qm 2:j.lpvc42 uzm5ewn 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 be attracted too,yn z +l.mte/jc3 -wc4z/egv 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 au+3yn5k. b vyntomic 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, the atomic massgnij*7f s/5 ix:jexx - number x*e5- :fgi7xnjijs /xof the 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 jn fn s//1)tgjnumber of the nuf )jt /n1n/jgscleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - q/gf 1yu.gg( a0iuut 0MY - 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 following is most n6n77l)bs5pizy x+rwtfp( x-cearly 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 unsq1wb yu7zu, 2man 3w8stable 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 tb5fxai wr1f .;he 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 v*)lto0jga0)2 q hxxx:f x,aw halue is conserved in addition to electric charge, eh)0qh xx :fto2 g0a,*x)xjlawnergy, 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 radioact5t1te: 2sbn qzive 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 used. This nucleus d (upf qw1jo ejiq8;tn2(sb9 :ni1kn 2emits a single beta particle when it dedk1; 9nn iij 1fbps:oq(uw 8q e(njt22cays. 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 particlecs0u)1 vg:d exs 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 hydrogex w pvp z6rq5n.il:u;h9xsqo0 m j7b1(n 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 b5xt* n rlqp52mubble 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 1. tlf*gyu52 mi4 and atomic number 6 has how many proton5.uf *2miygtl s?

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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 num iwu5)t kmm.p1ber of 14 and atomic number 6 has how many neutronsmmt51.w k )pui?

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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, respe--3 nt+froh l4bacb 2wy,wkk3 ctively. How lk3y3n- rab cf-kobt w+ h,2w4many 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 for calcium 39 are 20 and 39, rk.kndhjin7px + y6btgruk:9 6zae82/g9e/ olespectively. How many electrons are in one . e xnrh6+ e6 7z2y/9tlgkkkubdgo piajn/9:8atom?

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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, respectivel6lrs-kyv e.d: y. How many protons l 6-v.skdr:ye 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 number for calcium j-7ok lxjeu75swb3 0xg n0au-39 are 20 and 39, respectively. How many neutrons are in one-s0u7 gj w 3bealxuk-n75jox0 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 numurtz.7tlr 7z ;ber 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 the cw hq4t;9 ;gclovya9nv 7*6lnxarbon-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 mass numby r( (ea/yd735hjo 8 )jzq xjska3uey(er 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding8ckrbe j va0uqg 78q:qa b(q1: energy 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 tody:b s- (cbvr1 remove 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. zcw76l4.y5xee xv: y p Its atomic number is e5 :zv ye7lx6w.px4cynow

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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 nu,(x girw4/(r: yrgif ),cdizgcleons. If it undergoes alpha decay, what are the number of protonsg)(r,dr 4 z ,yiiirc( x:g/fgw 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 beot/o (qr0owa-d)vv2m5a) -5qiq wi lkta decay. How much energy (in MeV) is released if car)qq wo-dka 5 iwlvq(to/rmv2a -o)i05bon-14 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 numbg4 )u2hut61wkewke9l er 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 1i ec7u5 gk*p6l 1zt59r6agd m)/wjhmg00 years?iwhj7gp )ra*615 5m6 gm/ek9tlzdgcu

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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 .+k).1 7xix4vykm eac, b .y(tedmi:xrist7l247 yearsim( yebtcy) iled.mr :7 t7..vks+xx 4xk1i,a?

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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 certifev2ff76 ymk r4ied 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 fraction of the4kji3 l:x ire8 sample is left after 40jli4k8xie3 r: 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 radioactiv6xg)2 kipt l;qe iodine-137 is 8.0 days. How many iodine nuclei are necessary to p q2lt;xg pk6i)roduce 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-l)clnh z3*zdsf fd,ey (64)pogife of 3.0 days has an initial activity of f)) o ,dgzf cel s*h36d(zyn4p$0.24 \; Ci$. 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 in.4o(az8r eq wt 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 18o qr( za4we.t60 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 tak ib23di0:rk 7/nowrvv e $4.0 \times 10^{20} \; atoms$ 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 a.na* hvuqw htnv7y(* 0 $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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