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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 tq+tx pi5a1/nibv ) v;-itp4p che 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 p82tp a0af,ed 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 cock k:rmxu6tn neff ;*vl:54 /gnsists 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 number pk.f zrn5y/uf(b; sf( 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 deterz bf/3gk ;jzhnm, ))dkmined 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 atomic mass bat uuvfiy, 4 u4t9+q1jy A, and its neutron number by N, which of t uyuv 9q+4u,ti4 1jatfhe 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 *lvsdqot7r1/-n yh: wab*iu8 an unstable nucleus, the atomic mass number of theb qos7n1 hrtilwd*-y *a u8/v: 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 an eje )+/ afy6r cx qi5(ypsd1(nsz7l q: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 st h jls9cw.0k/kable 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 ov3wk j-wjnv4/v :z4 frf neutrons are referrerjnzjwkv-v 43w4:v f/ d 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 v:2 mdh+,h voipplh--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 deg6y n (hqg3h.j:kt-;n*7 l yexb1fg bjfined 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 42re0. kr vjkra stable nucleus is alkv4r r.02k jerways

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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 forxt1q 6.v7;zc qf k3kehm a stable nucleus, 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 nuchcpk e,k(h :90bvz m1qdgj;4lleus 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 nucl)a y uvgdht a:w1.7i lt/ud9e7eon 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 pee/l +5,krgb llr nucleon

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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,:k6n,06o l6t ixwqcsycrwkm j05h o / 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 c;vs(( v da;fwx8v n1abetween adjacent protons in a nudvnaf; v;(sa1xw( c v8cleus 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)jv i/9-s oklcte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratp qrwp/6a*s. 7n0jdhfe

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrkwvi l-npzld*)nle3*k p,t; 9ate

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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 fi6i(v el8 .ganpwz18known 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 0x /h:1*qowqhp1fmdg+ 9xgxr 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 attro-gxf2fs9s0 2*pge6t ,hrro+gza-n1tja 3e sacted 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 anr 4 5otq:n5my edwl:qbba*19d atomic 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 mass numaa5kdw.nb)d v( ne.9d ber of the nucle..a wn(adked)d9b 5 vnus

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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 rh2 ;o b.o7 fgirh)slc15cpox)x.0jc emitted from an unstable nucleus, the atomic number of the nucleus0gx)2cxsc;o7)r cfh o.bh5 jo.1 i lpr

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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 93t 3tv1o;/frjf1.5 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 nearly the9rh,6 ai t 9fobp+vu3i 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 froi/+ddk gp7d:- int v*fm an unstable 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 mosfdhna83 .ry.q xpr)+: vnvmyme(j( 3bq(2ge ft 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 c/i9lhcn xn9z./v l,h2 2y x2pks4jo*jugl*i h onserved in addition to electric charge, energy, and*gjjnh2slyihh .un9l2 2/,*/l 4p zo xcxk9iv 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 substancefmqz+- mhp6wvuy00o/ m :5c vs 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 emve-lget c) c6gd s qmk;e*ye5.) u/ vk84u:appits a single beta particle when it5d6slvm* epu-k a8vy c )g 4;t)e:ugcee/pkq. 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 that uses a magnetic field to cuznnu (f4hg3o 3rve 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 hydroghfp44,oz y.a 80sd6qyq4 db imen 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 b c l 0w8f.ftij.8qe;qjy bubble 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 14 and atomic number 6 has how many protonxwe12i35pq6rb/i (4b e fw surs(eusw/e rbpxf w bq5 rii26143?

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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 njuj,z(0g l m3f)qhda 2eutronsmf a jzu3ql2dgh(,j0) ?

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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 20s q3 +v+.+yzf+pm w fckp6tny0 and 39, respectively. Ho.kntvfs y pp+w0yz+cm6++ 3fqw 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 for calcium 39 are 20 and 39, respectively. li pi pam*0q* /,gw9tiHow l/ * mwgt pi0a9*iq,pimany 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, respectivel2d-- btck/shdtsd 7x7*2tknuy. How many pro-s2tksx7*ck-u ddttnb /2 7dhtons 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 39 are 20i:n2h 8 *ouz)p)u1a eazmd1 vq and 39, respectively. How many neutrons are in one ato)a8 oe1 )m1pv iz*daun:zuh 2qm?

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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, andd*ho9hjjm x 0;qcx i-c7a/;lj 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 carbo1 2 yp4(se2 e7x6ogk6knnsvkjn-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 or5gs/ pb dy9gl *obg-/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 z: -z2p*rm-h nvewx c7energy 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 reo:5x8 t .rgm46q;o mtkc5wd aequired 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 pjn a8t7is8.zl/x1+l+aopeqg, gpvk /1ldj 4through alpha decay. Its atomic number is 84/z1+p1p /7gad s,q8jn.ipjkv x +aleltogl now

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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 nucleon f3+34dlk0xctt 4hveux1qlf 63k -sbss. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucl3x 0s+u1 3dkkcetv4ft sf xl4b-lh63qeus?

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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 decay. How much en45ybk t7wi+ s +7qa:ecgym1fy ergy (in MeV) is released if carbon-14 has a mass of 14.003242 u and ns 7gf4cyw+m+tbi57 1qake y:yitrogen-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 number 6 undergoesg3d7b 0qc b6oc 2bnlu/ $b-$ 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 leu f, zb18xrnn.ft after 100 years? fx8,z1 unb.nr

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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 r1 is.v7-jdfeyotg1bb+4d- q an atom will decay this year if its half-life is 247 yearsr 1-1 7e4.fgo -yqbiddbjvs+t ?

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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 c f4/* mkw lhlc97cy7fnertified 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 sample is arno55.mpx ,uleft after 40 minnu xr5 oam5,p.?

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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 radioactq;2nr * /i8v dnq0ymzqive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce and;r8*ziqm/0q vyqnn 2 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 3.0 days has an initgj8qro+xtfv(zg 7f77ial activity of t7+7z orgf7j fg 8xq(v$0.24 \; Ci$. 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 measure,j/waelo b-ya w6x q(v)+s6 lu t,xv9bd in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereao,wa+(-,x jvb6 etwxl/l)9qv6 yabuss 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 ta8f3w6 ).vbffew8z9 q ) nzcsjqke $4.0 \times 10^{20} \; atoms$ 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 takewx: nb 3h;r)of 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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