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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: 63 kv7mrwcnfmgl1x*. tb yi7 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 iscj1 s,, 3grsddp3*bnu

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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 d kdztv5je, ki8s-ye8+ty;r2 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 de6b +d2o//hdl l91b;wh yueu brtermined 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.98 yg+duzvaa il;f4o 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 atomic mass by A, ansb4wp.q)o2oo- vpo7v)qcey 4 d its neutron number by N, which of the following is wc.qvpq sb74 y ooop)4)ove-2 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 em/7f 44mo3gyqrjf r j0eitted from an unstable nucleus, the atomic mass number of the nuj30orf74y4 q/ refmg jcleus

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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 s ysy0x7snzf;r /s6k*( m cd+o7l.pncan 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 the size of a stable nucleus becaw1 2q28 wibgw50fxcm euse 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 nuw km d7;t)xka 9p-w7gqmbers of neutrons are refwxw ) gk-a7pdqmt;k97erred 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 nucle jpj(a8d7+ luoi 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 is8yhla+k,c9 ny zl07w5 h0xw it 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 n6 34n1ku 0owdsmemg1ptpg y.;eutrons, the total mass of a stable nucleus is alw.u o mmpdt41gk;s0pe 1g ny3w6ays

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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 nuc;m3 yv2e7gdc.kmt 6:.hro bbfleus, 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 contribukr,w gxrv**;eben .*sted 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 nucleon 52p0ymw 9 me)alnks c8yxks1/ 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 q)ab1.v uh6r snucleon

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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 nucleal jo4v nr7+spp/u1hzj /ulf3c64 (keur 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 force5* n z:mu5pfsp, the nuclear force between adjacent protons in a nucle55z :*mpupsf nus 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 penetrabodjj3/ys1 /qte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrn1 3 ofr1x- ku-b- :p h75l6oywnzzerhate

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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 u4 jm*rpj:yfi3git3)ate

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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 6wjv ewhj-nw m )d)e div8t*60known 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 as+vq-8,o1 9:)iziiwhr lsn oqa

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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 to a. d gbz2p h4mfdw)3hj:

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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.)3vdokup e/i : enn(es 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 nucla . szok kdn48cl0g3,eeus, the atomic mass numberknlgc, oz 0 84ask.de3 of 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((fdkiv j1 f;yow9p) z):::u3xlglk kcpyxu/ atomic number of the nucl 9l)xl3ku(fi xoy:):pkyfj:z g; wp cu(v kd/1eus

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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 - 8htf4e nrl9g* 7az;uo l pf y+l;tk9)oMa) 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 mose9;o ae+ ) albbf15o wemmz9,ut 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 uztd81wh ;pd4f . /tnpb7noyyy2piq ;*nstable 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+ r,j f6ik9kes6b(u) 1jsrj+v8kxac l ?

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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 rad* ps3dws27sh sioactive decay, what value is conserved in addition to electric charge, energy, and moment27 *3hsssps dwum?

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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-l.b7 i/co)y ikgxw/ d(pife of 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 used. This nucleus emits a single b+a4 zmfj*j*sy eta particle when s j4a*j*fz+my 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 that15htn lo c2vie 5:ln5w 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 hydrogen is 4l:lqqau2hf q)pgi1 ;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 bubb- fgy hbb vn11,cq*4agle 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 mas7tlczr,e9 )nkjg(w 0is number of 14 and atomic number 6 has how many protons?l(zj,rtke9)i7 nc0w g

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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 has how many m(m:.4u rjz k.gg38 jfqw/ufkneutronsgm fk(w/uf: gqu .4kj8jm.3zr?

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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 cas3w 9ed8r h17 o+zfiltlcium 39 are 20 and 39, respectively. How many nucleons are in one atoft7138 swrde 9z+ ihlom?

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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 32p-bi5javod2-pm3 t y 9, respectively. How many electrons are in ondt2j i2-bym -3oa5vpp e 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 ar xp/ah u d(jp3vi4;if1e 20 and 39, respectively. How many protons are ihfuv /p4jd;1i(x i3 pan 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 */qmzve ,c-i ycalcium 39 are 20 and 39, respectively. How many neu,myz/q -ecv*itrons 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, neuthn0qnu3 65z1/ao ar uz )rw+dz80z psqrons, 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 carbon-14 nucleu1pql3 05b-qfwelxyk1nbdk 7y(5aj3ss?

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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 aice+(s.rn3ykjc o yl*u hb3: g2*j9wgn 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 ,s(z56ynhgc w 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 required8x s;) ive6:r/ cmqtsswe8t b+ to 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 g yyy4bs6560 psz/fy-c- hhnk alpha decay. Its atomic number is nosycyp6gh6-/-0 5fk sny4z hb yw

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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 ntz pd0tx-d*y 5)2vyec +6shpkucleons. If it undergoes alpha decay, what are the numberv *tsckyz+d )x2t pep-d50y6 h 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 nucleus by beta pzv 4: yz-7 abgc+ d/tqi*wv3wdecay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mas w+c z7q*vbg- ywvp:4d/az3its 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 nu(/5onflr6w tdmber 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 l1cb5;nk yv/ ojeft after 100 year;ybncj1/5 kovs?

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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.4r)xrr4 fb3 kyr jxi3 that an atom will decay this year if its half-life is 247 yex3 j)f3 4.rkirbr4yxrars?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wasyv mu78yk-xza no* 9-z certified 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 9rp0jq :l7fw1z g; ix:gycb6- db 9cnrhalf-life of 10 min. What fraction of the sample is lb9 db6p l-7;zfjcwrg0ci x9g1n::yrqeft 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 many iodine nuclei arexl0(i7 esnj( . f9dmid necessary to produce an activity o ix0 9.nm(di7jfdsel(f $1.0 \; \mu Ci$?

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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 hal yr(31j1l*bhusa.fgsa(v ylw2 n)h1 zf-life of 3.0 days has an initial activity of rl(ujs1z12 hy lyn 3). wavgh*af1sb($0.24 \; Ci$. 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 a piece of a wooden caskejr :5kmon6,n53 cmaz7d:x moot 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 hal5 5:o3ocmk xrd7,:6amj znom nf-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 tai a s;dpx3yycpy(* gp7iv,a+ )ke $4.0 \times 10^{20} \; atoms$ 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 a28qbm ioht8kk4k.x 6i $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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