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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 litv ra,:ft w92, 1 s*9uzqzxdaeast 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 i*+5p6kam ffan w *c.nis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consij rjc8 hdx3r-m2/y(rdomws. /sts 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 numbegah .p(e2q 8ltr is determined 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 jiapl,9 ,vvi+ atsd/e0yw a+3is determined 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,c2g 3 yd3g7d8b -h- 7lvypovog its atomic mass by A, and its neutron number by N, vgo-3odbyg p2gvlh -7y d7c 83which of the 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 an unsts/o/vo 9 pbbn : ca,sc5 gw5ly83mhbd5.b*sbsable nucleus, the atomic mass number of the nuv :5y3bc.bsh ,boms55gcb o9w/sa n /s*p8 bldcleus

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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- fp) j)cisv;b in 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 c/h c.1xjrp,6 )aenjst9 um :lof a stable 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 18)c;lw(o x y0ymgi-onpl5pawith different numbers of neutrons are referred wpli plc15y oa -my g)8(no;0xto 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 ,4)d(0w8ninnltm 2lro axcxj lkl(75 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 deqtq9 p61k sp3 ;tccc0xfined 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)yl wrv3 /m.qtc;nd;u , the total mass of a stable nucleus isumt;w;.vc ) rq/ln3dy 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 ;ro+7 ndv b3bl(cnu/tstable 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 ivur o0vy h5csj)2k93 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 nucleons6+*g(yb xrl v 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 nucle7t;al+wi- a f cpn;;yut2kvvn 5b ry*(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 concerning the nucle -aan t;6oc+5o)dfp cear 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 fo j*m/urv evg0ud x+fi3v1e/ 1frce, the nuclear force between adjacent protons in a nuc*j1rif0umg3/v e/v+1 xu fvedleus 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.ja ;h u 5s0yjfmj,w3nte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr9 /e4dsno/ryc2n9s1mtra , ke 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 penetrat6pnlcatl+:b * e

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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 ku2 f,.iy0 gn/ fklo:wwnown 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 known5 nb3p-;hlec3k cqimx7 vt (;j 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 attracted9kno po7 1p8xie8ovi 2n/gw:ydx/ cb; 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* bdfn/gc *4 sgsoj1/p 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 unstw9z6batmy1l1 ) iryi2able nucleus, the atomic mass numbariyy zb 6t9i2ml1)1w er 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 emit c9v fjj)eq(8vted from an unstable nucleus, the atomic number of the nuclej(jvqc 98fe)vus

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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 represe: 5lu c:9gxtamnts

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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 nearla/muwz(sz) f 7*rr2gey 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 un- n;..fww n6*p djlewsstable 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 t2g b+m hgbxc44f*p:kvl6h ho p 93vho;he most 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 conservtkj08j sz o1sg ski:50q)s wx,7d +rqred in addition to electric charge,+s0w18j,rigq 5t:s zs0 )7orx k kqsdj 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*z3, rx/phv7lxc,m ywqd4pzr x7i; w 2 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 lnnpo3* bid t3 (s9.pzused. This nucleus emits a single beta particle when it decayd*lzbno9 ( pn33it. sps. 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 curve charged particlesox24d c(4xp oy:dnhxl 6h0n3e 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 l2zty4cvx)* fv iquid 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 chamnxuu -o0:nd)k bers 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 prot6j ovu+xqsn5+e e7/ltmg;,vw on7j mvusx q/v;ee+ og6t,l+wn5s?

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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 aa-hjzn 4a uoyh s(8);.gm xu5aiqd /3:di(eqitomic number 6 has how many neutro) a:x-aeq; (yidj 4.gmzui u/8qdnoh 5i( sah3ns?

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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 calci;igsha9q /8drfy+w-ium 39 are 20 and 39, respectively. How many nucleons ar 9 /yhdf+isrq8igw;-a e 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 3mf:jwb., ied2 ef:nbfp;v, ,. xiay/w9, respectively. How many electrons are in one a .mvf2bj wyw ipe ;a.f/ni :xb:d,f,,etom?

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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, respectively.m4*1 h gpqi+bkdtjq.k o(o7n 5 How many protons qimkg 71q .o*(+d p54tokhbjnare 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 ftik5y6i.rwz :u. izvbx* )hpz0 :8bjpor calcium 39 are 20 and 39, respectively. How many neutrons are in one atom? i)x z *.5i.zb0h: puriztywv86pjkb:

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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 numt.1cdi;o5w pvber 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 i8*ykkw g fzgu-.3fh- wn the 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 has an ve 9 8h1; sx(of (anxgvw0wzahl;, m;hisotope 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 ener +eem. l7yo6bhgy 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 required2, y r gydf)yvvk:i8c* 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 alpha decay. Its atomic numbd*:+0hl uevf6*2 zztbj6j pib er is fith:d e6 6u2j j+ lp*v0zb*bznow

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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 unl-, wv/vl+tmk*s af*a dergoes alpha decay, what are the number of protons and neutrons-v,k+*tl w/fsaal vm *, 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 -0uu;p grnfm2cuz 2w05 8r c :ut9ztcma nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003-rc58mr9cnpt z : ;ug m0f2c0utu2wz u242 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 unufpw,r::b )wfdergoes $b-$ 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 q1.n k.tz vj(+wj7f e8f it0qv45 years, how much will be left after 100 years?v+ qnf 0.iv.7ewf1k z tjq(tj8

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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 thac 2 v9edkd1o6et an atom will decay this year if its half-life is 247 yearsde921edo6v c k?

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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 certi w8vr,+ u3zyepfied 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 ha ,zs3nd5:wgl. c*e 2*p8lhkdatf q(e hlf-life of 10 min. What fraction of the sample is left after 40 fagl* (2e t,cn.hzld*dswep:3h8 k5qmin?

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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 dayd//y,qmor e a7n :4kz cdr4i*rs. How many iodine nuclei are necessary rermqrdi74d/:y*o /,a 4z kncto 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 u/4cy a) nmq +u0d5zeda half-life of 3.0 days has an initial activity of e/+5zuc qd)u0adm 4yn $0.24 \; Ci$. 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 measum4r n 2+vzzw1jfs5lw.red 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 v2 zfwmzw+nsr4j5. l 1of 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 tak3wfel, l u8;uw y4evfl2wx. f0e $4.0 \times 10^{20} \; atoms$ 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 al; lj*2zfw ;cy $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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