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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 particles has the ll3;- vv5tzxibrzi5nr .f ba:c +7bx7oeast 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 u+u(z4zjem: fuu 4wx;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 yp 63t*2usa6k:mxagl 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 nt5fbp5j)z h6c v 7zl,oumber 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 deteh /z87dsooc3*zptns. k( cvc+rmined 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 is given by Z, its atomicx*cz:-v- pvvc/yc l7p mass by A, and its neutron number by N, which of the following c pl7-y:*vp c-/z vxvcis 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, twzepdyp-t9muu1 m(*ff m8w+t7ol6 p, he atomic mass number of the y7zw+mo(t6u* 8tmdlu, 9pmp1f-wfe p 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 i 60tlfeug *5po(luya0 n an 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 becausep)l1g4teqm pc;l0xsy 9yi8 8l 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 numbersdx-gon l qj jkzaz+7fxe8d 1-5 f-y8 x3ak2,bk of neutrons are referred agxnfq8 3eld5f-a -kk8bxxjz7 1jk-y ,+d 2oz 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 ng p 2plih,l5+9q/wawxuclei 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 defined as0hmjnyb 1qez5lm z+);d zvo o c+0(er5

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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 pvb +x2o/; ie/xmt/ht its separate protons and neutrons, the total mass of a stable nucleus is alway/ tot2 /x;+/h empxbivs

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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 nw7 p*vozm5 7qglz4t 3tucleus, 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 rx5k:v(cc 1tt,z7abx a nucleus is 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 per nuc fxkn9a e*l*tuhw+,yo.2 dxh f 8zf*(wleon 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 nuclel: bur)bxg81ak pp28i on

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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 covv;qblw x fecc5uq 8s91+*pcd b:/*ttncerning 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 fyx8kvnw/4sck 7p8kq 2 ox i12gorce, the nuclear force between adjacent protons in kk w1o / px2q kig8c7y82vsxn4a 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 penet(ny q*jm qb nqjz 8n+d.5z5ck1rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratqkaiewn (nx -ad+x( (8e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratrokwj ,p-pk)l,m js ub. h+1/ue

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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 ge01+rsyh9 6p rzvcp/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 k7k o1ctf7ue o0nown 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 att-bft/0 on,r e,fj7 fe6z zq*v4 szduj)racted 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 equq8ht-e +o(au7u6m rl : +wvxbtal 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 unstabnvt/k5o5 e1 40 cfhsigle nucleus, the atomic mass number of the nucleu0ct/gvon 5i45sf1ke h s

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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 fgu/kc,kjd1a(vri 2 4dnkl 82xri3.zqrom an unstable nucleus, the atomic number of tqdd. j 28c/vni (r,il31axg k2r4kkuzhe 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 -:v0 obiwkc74 x MY - 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 n m5 b .p+bnzl02+ogsg2ws ay+bearly 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 unstable 8 g0 w+qhhnduco3y a.: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 je oj -+f.;:k- vdcprimost 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 value is consert:qrrnf (pujh41q5 8uved in addition to electh1 r pu84qur(:n qj5tfric 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 of a radioactive substancepstd:8;k ha c* 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 em(l0p+ rvpr e b9+q/-q ehq0hmxgx 6/hrits a single beta particle when it decays. When t q+(mp 0hgbr/e09hp6qx re/hql-rx+v his 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 )b hler+,tpnzq6 ,xp/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 uso8o ) u2eioff xz0qd73es 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 chkoh-udf/km t 1hl 7i1*ambers 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 numberdgw 4)u5bzw-p3p xyti.:zl/ mvl; v 3d of 14 and atomic number 6 has how many proton-l 3 w3g4tyzw m 5p/p ):u.lvbxvzid;ds?

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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 n: hiqz)m3hy3f umber of 14 and atomic number 6 has how many neutronsimq h f3hyz3:)?

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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 n)5fip u+x r qoq7i+ c,5kv1wuzumber for calcium 39 are 20 and 39, respectively. How many nucleons are in one ato5q p1wzu r+75)c+vkuio qi, fxm?

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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 +yiu :36:ezmxsug w(omass number for calcium 39 are 20 and 39, respectively. How mw6x:ys(i:uo 3 uz+eg 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 m(fji+pcsedd1 ej +80 qass number for calcium 39 are 20 and 39, respectively. How many protons are in one atq(iefj8 p 01s++d dejcom?

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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 d4oqha p3;t .mmass number for calcium 39 are 20 and 39, respectively. How many neutrons are in ooph a;tq43. dmne 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 electron.ijr) go-zivjsz89, q s 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 thh(zkd9rp7 -batq/ b p:e 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 hs -o vj0qe:jr9as an 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 ofwr w 8(z89zj.b ):d1 /yhwnlie6 tyagr $^4He$.

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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 to8htdue6r- 8 fz 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 gk24:lcc 4 nzo lwm8v9xoes through alpha decay. Its atomic number is now:kom2n9cv4zxw l8c4l

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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 nucleonmma0fbb)g(w0 s. If it undergoes alpha decay, what are the number of proawgfmb( b)0m 0tons 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-14s*zif . :g usm2h4ohe4 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14eiho2 4fs4hsgm u*. z:.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 atomi/9/5d rw1h olq ,l5uycy6zdyyc 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 ( ir6h+f7w kdp.x bym)a material is 45 years, how much will be left after 100 yearsbw mdf+ )(xypki7 .6rh?

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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 iily 7a*8 hnurds0 vt*p2 c gw9g)w/d2nts half-life is 247 a) 2ldg*wnu2h icwd7g*t ny sp90/8vryears?

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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 certifiedu,yhe2 :l2xi c 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 the samp .1*z0jguw mhule is left aft m g1u.0hjz*wuer 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 m owdi.y d,e93dqi/+ihany iodine nuclei are necessary to produw9do 3 deii.hq+,iyd/ ce 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 substannfr fvu,iws7 )mr l7d7fr- l6)ce with a half-life of 3.0 days has an initial activity of -s7f 76ff iurlwr)m,lr 7dv )n$0.24 \; Ci$. 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 meas6r d t7tlf6kx2ured 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-lit7txrklf d62 6fe 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 gg nv 8-2l8d soar6b/wzica0ly-azwc2 (17 rwke $4.0 \times 10^{20} \; atoms$ 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 a3b,gp*qulxh( 6kls 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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