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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 leasdf6 nn2:gegw s 1.* rlo+5fetwtuk2y7t 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 ip-n,zn4vc ,ups

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus rfb:ly// 3 z eoqk j+(v.rq,qhconsists 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 bfj,empr,i )7(/ggeo3i a9 scp))in phy 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 b0plg8xcd *n)py 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 xb,m m(1(h mvaA, and its neutron number by N, which of the followinax1(vmh,m mb(g 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 nyatsn8ob6 syd p0 -)j5ucleus, the atomic mass number of the nntbysp)0 sya5jd8o - 6ucleus

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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 k) 2oow;1wcz,aoi h+gis

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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 becauer*+a :lx l a4oo6m-dkse 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 cd lku4 b7b)l30 wujgbw(k 6t(but with different numbers of neutrons are refwukgb bulb7 0 3c)(4 6k(tljdwerred 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 eleme0gin.oo 4l0zu;ww :qunt have 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 io 27 x)m6oul)+ukl+igok bb2 gs 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 of ajl a4fg9d 2;l cfeuso9yc*(. x stable nucleus is l .gcfo2j94xau( y* l9sc;fed 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 a9iu9ujs ) k6t2qrq t3m2sst;q(ksj- s 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 o qqcx nat:(f/;n8i0 tnf 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 nucleon iztv2xp u:*pi;p ,h(85eufw yts

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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 nucleon3 wvv+6 4rcdxo6 shce.

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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 falsemj),uas*f( j t?

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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 betwebrhjh-4anlz c-+e gt(-;r 4rken adjacent protons in a nucleus nc - 4+4rth;- jaebh-rz kr(lgis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrae )6qy, ;ezisr9hr2bate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrc j *j dnkcm*yx1w+b1.cfkx/-ate

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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 3jiromzw xgmt*.. n,pc8g:+xate

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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 alsotb*5mipppaw,6 eqql9y(i 1a5 known 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 knroc6dy6 +wdw9o 3nr u5own 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 3j lp qwz4ou:1be 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 zg 8rtcdazxj 6 uc8h9r7,+ua;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 mxfkwsy )*do52y(a,j b ass numbb f2wosjx 5yy,(kd*) aer 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 nuy8zdb/,9p tyy n8i5 recleus, the atomic number of /et n9pryy5b88yi z, dthe 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 represent e0ey**5-,svfz9* ubdb;vhtm gj, me as

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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 mg6pnjmoww wp,8ywq4v*r4rby4*m). i ost 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 a hcu r+gi,r;7en 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 most ,bv+n3jrc l,5d 6tjigmass?

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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 conserver66wgagu fn2(w vg l3z2)5ha:ab7gw ed in addition to electricunarg(53 v)gz fgl7w 26wbh2:a e agw6 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 substance as itdb( /v(2ivcct 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, carbxpc0:)qs v dqbd 94cp 0qe08nmon-14 is often used. This nucleus emits a single beta particle when it decays09mvcs x )eqbc0dd4 pp08:qq n. 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 fiezy k..i8+f 0obg ;4aqi)in.lf r*rjt old 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 j(yey+/ as99g ( gfiq s.3l a:hthsx/dwz jr-*that uses 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 qoi/r z jcops:* z8ti:ly4*t:been replaced by 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 prot8:e gt 3:p qf bq)rspydtvm2)lunyn:k5ga* (8 ons: ke3 lq(a8 2tbg snvd g )yy*rnp)ut85mf::pq?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomikxq7)ev26r2l z4wn;sts9v s5 e5yd ryc mass number of 14 and atomic number 6 has how many neutrossyl5;n x9wvyedr2s4z2 67r5 e)qkvt ns?

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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 m-ztc7 my w):vjass number for calcium 39 are 20 and 39, respectively. How many nucleons are in one at7 w-)tm c:zvjyom?

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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 20ypl -5j9-qb xs and 39, respectively. How many electrons asxb jq-9-y l5pre 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, respect8+:qe j;v*7 npl ywidtively. How d8wli 7 ;vyp qne+:jt*many protons 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 20 and 39, respectivelce sytj n;+or3-gta5; 6i+ipvy. How many neutrons are in ons -oc+ta3vti;5e+n6i;r g yjpe 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 numberit 5kxaa -0o4m 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 carbonw*o7v)w jhn 8c *u on-vlc;*im-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)7xgtx*kl-kuad 9 wfx ;+p1 fc 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 energ m 91rwyb+lg*x2bidg6y 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 to remo gv nw5.(i4pxuve 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. It:kn) or0ade+g 7yy k2is atomic number is now:yrn 2o eaik) kg7+y0d

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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 anjanx.:tym xz (h- x,l7d 249 nucleons. If it undergoes alpha decay, what are the numb xamy(lx.,-jhtn7:z xer 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 decaysvf8 q7mqjo78l jvlec/bp2;m1 to a nitrogen-14 nucleus by beta decay. How much energyl; m mqc1/jvb7jf8o2q7l 8pve (in MeV) is released if carbon-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 nup8 um,64jb p6uch ,azlmber 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 wor4xy *wu409mo6wji 0o5xr,r a+ dr rcqy)lo(ill be left after 100 yearwj0w , rxrdqrc ia*mro +4(lu096yoo5rxo)y 4 s?

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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 de6c n+ c5edm*bmcay this year if its half-life is 247 years?*+ cdmn6 bm5ce

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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 certikc h z(7t9 5lef*em g(xii*)(vxb d6nofied 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 fra0p6b2 5 kcfkka(74bde8q -bebdwg a:wction of the sample is lw7kb48q:gpfb ak(62 cw 0e5dbdbe -akeft 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 nstoq8w;b 8, +pv8kjwis 8.0 days. How many iodine nuclei are necessary to b8 swjp88v+kqwo ,;tn 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 3.0 days has an initial activitcpbcxmwf pb c8(;5.k; y of fc5kpp;c8mb.;cbw x($0.24 \; Ci$. 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 ihq/j-sc vgq/+1m,ii 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-life of carbon-14, a beta emitter, is 5730 years. Thus w/hqci1j ,+ msgiiq-/ ve 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 take f kj)/qho sbe11aafpoz7;l rzt c k*3d)d79:l$4.0 \times 10^{20} \; atoms$ 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 ap,lv7r8 n.pp8 tvdpdx2 cl-5n $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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