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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 parti6 .6mg9eaoc pfcles has 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 i98 p)umm+35b v *a ruykeaem4es

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conbs syin :8clhewi x;a3+/6(nhsists 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 , q1h m,,kuatc yuzoi(l e*o /o s2n:hifu-90othe 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 the)swtrw 3.p5mq9)kz hd 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 atoi/.5qj h4heihmz +f+ wf.fx9f9 ,xocwmic mass by A, and its neutron number by N, which of the following isehqx+49 o hf f,9 +c i.h/wwjf5im.xfz 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, the atomic mass numberq1.wpxbz-tv4q,w i xo4i. 9ev of the nucleus -1vz.wv4we io q4p.x9bxq,t i

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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 iq dcrg 2m7 t/ um5wa)jl3tm(mh(h l1)fon mj,3s

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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 because ofpe ggpfhsn h9fj3:(/*( gk0rn

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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 numkbnt0xmu4 2q5 bers of neutrons are referred knbmut540x q2to 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 nuclei widc:+wnyo,w m2(cyl z3th

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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 deimv a 6tye/4ls;1y0p p rzw/(hfined 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 it /s 8e8;aqo hu 1bw)oh:xtrnt;)hz1 nls separate protons and neutrons, the total mass of a stable hoe 18t)rt;n x)8qnb1;a h louhw: sz/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 nucleus, ener)wyzqu:e+)u w lu8ge1gy 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 nuc yuvnh,q0h--zw *hdgqfq u0+:leus 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 ngj:3 mf:q5f t*zihb y)ucleon 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 nucleor/gfv*cjcmp3 / z1p2oyk : d:an

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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 fa7p8aq3pmkdd8se8 h3p lse?

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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 qa a+wpp3 6-5j c8t9n9+(ootskma sl tnuclear force between adjacent protons in a o(j39-casp pwt8ls+t +56ot 9maka qnnucleus 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 penetrak n)t7lx; 1k;jf(ndlz9 rm+ig6y uri+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 penetrat fzuom-q1 vbi g*.fr-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 penetrau7ufyii4 hn4n:4 *ehwte

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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 alsoi 34ejkst-edit c n+hz:u0 is7,o+9jb 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 knn-xpzx2ob5z 3 m9b4 z*v*q lnaown 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 td c z4/0 vco0s.2a.l mx us.l,4rrsfjho 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 mass29cjta7d ma4w 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 emagpaaeja,3p+i.( e6fitted from an unstable nucleus, the atomic mass number of the nu ap+6eae(,3aia.j fgpcleus

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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 szun*hzh4 0z/number of the nuc40 un*zs/zh zhleus

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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 b7b;j 5vj( .fobmv8k (w.ihwjrepresents

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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 the same arigtd i ;09j3ax hc17 udii-j:m ;:mras 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 nuclv *giu9a* ;oca,ldkun -xxj+ /eus,

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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 mgz)x.kp 9i+l3osk ow; ost 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 conserved in a vpg+h uewe142ddition to electric charge, energy, and 1+e puv we2h4gmomentum?

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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 o a4ylurcg79vp42p5gh f 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 sjl+: 4m6 aiq -7/ qm8rwj(dbhe/rssatingle beta particle when it decays. When this happe r4a (aw s7s6:h+er/ jdq/lqm -jmt8ibns, 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 part(8ryiwk9, aewaqb i.p* jt34gicles 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 liqn ec+t( aur9y yqjd/+29px arue/84lquid 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 chb-imi f1u :5qzambers 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 krt: w0wd;lw ei(zurl/v++a 0mass number of 14 and atomic number 6 has how many protons?0u l++t;wlkw e0/(zvairw r:d

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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 nu../esvgk)60ab kyliz mber 6 has how many neutro.y b0/ g. z6ksi)akvelns?

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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, respectivel ;0 3 ovj2moxbfai7mj7:;sut ay. How many nucleoni ;fv7;7oxm 0joam 3: tuas2jbs 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, resp4;eog4:sy n q0zg7jmyn3h 1zfectively. How manyq 4ysz30m nzf;:o yjg41g n7he 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 m6i un g)p+,kb zj2+hemass number for calcium 39 are 20 and 39, respectively. How mui2m,zk+ h+jbe png) 6any 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 numb5nuh bt4-z eupi 7jl( )r.r*zaer for calcium 39 are 20 and 39, respectively. How many 4 bj.7 ear uruhzt(pl5 )z*n-ineutrons 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 nu-3t 6 cgos4rmkem 36dcpq. ol.mber 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 c r6dhtz:unu3d1fm 5(varbon-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 isotopehr(jhx65:di / ovn mp/ 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 energ4x,sgg* y;773q himihrwsg u4m kbe(;y 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 remove on (8a;ffb/cpq a-nrybap cm5-,e 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 ur )f 8i6z5gecthrough alpha decay. Its atomic number is n)u fr6gi cez58ow

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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 nucleons. If it undergoes aq; hy--n u1q jfib,y8c.vrb .klpha decay, what are the number of protons any.;fqrcjb qh8 iv.k-nby1 u-,d 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 decai-ofxz)f s m4 3mwnal u)c4 s*sa7ax06ys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carz3io xsn67axuls 0 )acw*)f-4mf 4a smbon-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 number 6 ur.9rekq9 hr+sv5rwm8 ndergoes $b-$ 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 100 year: dm9ok9oh3/d dr1t ausodku9at o3 d/mdh91r :?

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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 ifhkd 4zsg z,954bmr)a5cwz*k)cp /tif its half-life is 24g,dsk4 fk/) m 5tw)ci *c594azhpbzzr 7 years?

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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 certified om+e:ofe bj2yshnp 2y( reml02 t 1 p/lmdg5(0at $10 \; \mu Ci$ 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- x (s /+sbo6wyzps5/calife of 10 min. What fraction of the sample is left af ss5wbpc yoxz+/(/as6 ter 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 radioactivwjz;*p h,d d/se) bg6ue iodine-137 is 8.0 days. How many iodine nuclei are necessa;6jsd /gw,)e zp*udhbry to 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-95tghoj bi4ohhb q2/jb3ay 4 m+ jp3c half-life of 3.0 days has an initial activity of jj m4pacbh/ 9g b2bjohioq4 5t3h-+y3$0.24 \; Ci$. 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 aeji+y:ftr e- i/c46 hb 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 pbe/je46hy-r t i: i+cfroduced 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 tak czl; ,a c+mi3s-ipvd.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 takey-(u h2 cegqrvhz6w( 9n1;mzs di kq57 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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