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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 leaspnrllbv tqg)/x 5lx(d p/:y.zea.p5f43 m ;mh t 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 isp acj f r z;y3qy+ei(dopj446+

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus :*fz8he pvi :sconsists 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 byo,atw;m vr ukyo h:0;: 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 nsg.x ghj8/ x8by 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 nu lwr-h.kdv(+ a p49wupl z89uumber is given by Z, its atomic mass by A, and its neutron p4w 8d+ hu9 wa.rv-u9z(p kllunumber by N, which 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 qjza(7+;8 q4br 4.zzhatby mvan unstable nucleus, the atomic mass number of the nucma . yta7(q4+zhrz;b b 4v8zqjleus

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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 anza*:tm d:e.ceum jy 20 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 becaug- (rgr x(yg;wc 1a;yuse 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 - gxwk0zuwlwspvxb h ,318snu (/eb*a ;61zbnof neutrons are referred tw*au1 s6 (x -g wk 8wbs/x0,v3ehb npln;1zbzuo 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 h3+or0xauxtemv k2z +;ave 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 definea ofmw/:s7a 5xd 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, t.jb5r5vb hg5o th7vx a+b*gh;he total mass of a .b55h jb5v7rvhghx;*atb o+g stable 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 nkz 5 x828eyhk+le 9ytsucleus, 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 nucleus is contri(qn y6gyuf,q2 h9x .vbu nz d24w,ayc/buted 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 p n, ipgrcn7r h7n/ta.,er nucleon 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 nucl:bpa g,em5c i/eon

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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 conca 9g8vw3vpkeqfb -0k2erning 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 electrostla n8a9e3az p0atic force, the nuclear force between adjacent protons i9aa0 e al3z8npn a 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 penetrate1 0ddm*m ku1))zp y*bz(zmasd

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrak m4/9e-i:im6 hy xfmhzd1u(tte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratg nl - qvl)*o6p4e7fite

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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 knowl)a.8 vwd31jokipk /f n 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 a. 77oihins r.o::gro rs

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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 a,5r)b66zcneou+ 5 ,strzzfo gttracted 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 m onc; 3zzo8zsz5vk7* fass 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, li(b 4njmpe3fpq3tib( pe 5-7the atomic mass number of the nucleusi fp3 qb4 e(i5(l3p7-tjben mp

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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 7ka3 6hbn +iezvu 5o(ygtd2- tunstable nucleus, the atomic number of the nuclg5k-atv yo u nde27h(+b tzi36eus

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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 -lj; q y7et058tqc8 udi 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 mos 5p9s,nytyn w8t 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 an unstable nucl c)1pl3cq(26qg qyz efeus,

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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 most02it: boi h -79yjyevs 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,.bqvxm gqr2zw p;k/g a0::,uuid43 yi what value is conserved in addition to electric c,u:4bgq kp 2;yi:gvw az/qi3 uxrm. d0harge, 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 radio-g)t q098ulzp fd(zotactive 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 singlfa )69w g;rvx)xzxmpf 75p0xde beta particle when it decays. Wh))v;pxf f dg6wx a5pxxr7mz09en 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 chd+nrqudj,yp 0g74. tb arged 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 li1fnx)u ev 8yoeb-ix:.quid 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 replacedhsi*fla 4z/okd++0 8ovo kg 3ijg :h1l 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 c5 db i5immoyxp 1k3q9v3 9+szprotonq yx5v9soi3 kd+cpb91mmi35z s?

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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 uux;;oux;/(iw juaj*n2 j (qy mass number of 14 and atomic number 6 has how many neutrons?u*qxj(; ay;2ui; njwxj u (/uo

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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 d:.vao6 5sb0iye k2y o:0c;shb b/xq ofor calcium 39 are 20 and 39, respectively. How many nucleons are in one o2b/siosxy:b;y6 :aek0b o. qv05hcd 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 ap+q blc7 ax.m-re 20 and 39, respectively. Ho+qb p.-clma7xw 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 mass nu3n e ul 3mj v35cs3k;8ptjohi1mber for calcium 39 are 20 and 39, respectively. How i1 h38 cs m5k3ejn;toj 3u3vlpmany 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 fg* aq/l fbg;n/or calcium 39 are 20 and 39, respectively. How many neutron*n/lgfq;g b/ as 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 number of protons, neutrot )wocyizgq;20c y0i2ns, 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 carbon-14 nucleusp) :g dw.cej iv,6;ctb?

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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 aa(bnw. dwtk;7y q0+ag n 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 wfr2o0tnno: 1:an dobe 7(5qk energy 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 one proton fv8x2oear: 1ju5wc g(d 1 zdc 2cl6 1q;xgnn9ewrom $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomi;cv24t6)+h 2qrixj 8u l tdxrpc number 88 goes through alpha decay. Its atomic number is n 2jp ih8rv46xu c)dlrqtx t;2+ow

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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 alpha depl pia+:f. :4yuvxq tp, y7/yfcay, what are the number of protons and neutrons, respectqu :ylxyp y/pi:v,7f ap .4+ftively, 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-14 nucleu*vn9 t4ms0 a+*uvwpkz s by beta decay. How much energy (in MeV) is released if cauv *p*zm0+4a wtk nvs9rbon-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 numbcl)y1:g -kiyo4 0le 6p0 cqvfaer 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 will be left after 100 h0) /boze,8h6)sx yw smj nrh/yearhh /)8x bsysezhn0)wr mj6/ ,os?

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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 its half-life is 24zz6bhl 8 muc+(7 yeu86h+ z zbmlc(ars?

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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 a/dfy4z x 9v nw)+wwa/et $10 \; \mu Ci$ 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 has0 2c/ids)mz1gvmx+44v hgvn b a half-life of 10 min. What fraction of the sample is left after 40 min?)/m02d 4n +cghv 4 mxbvi1zsvg

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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 many iodine nuclei are24ctxxas5 lw . w9vg:h necessary to produce an actw 42xg vh5:s c9l.xatwivity 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 hasn8*,o.q/s jcjku ,pco an initial activity of n, ojq/8ccu ok ps.j,*$0.24 \; Ci$. 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 a piece of a wooden casket from ajm 1jgne ua2k v+qow0a +k9a3vvd +(-pxm;o0g n 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 emitterw3g u+ej voa+kxdpjoa+an m01;v29mq g(-0vk , 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 taker18kl(kk y ;lpcq hk,51fwj.u $4.0 \times 10^{20} \; atoms$ 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 a:acg o9sc5bnilp/d4 g 8k5 4ys $4.5 \; Ci$ 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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