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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 particles has the least massnw/ ankj(vw/2;h zm p.?

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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 u1w)sc2p 9 adjis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi7r0nph t9 yo-rsts 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 determine, lk( km6m*zd1o0gm jtd 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 is determ g dmg)7b0)oi12 mtrrwined 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 gvl3pm. ra- opg/7,8l;lam l haiven by Z, its atomic mass by A, and its neutron numbgo;l87ap -,a.va/3lrpml lh mer 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 frd+2mwegy pa)4io.z81kw hxw6 om an unstable nucleus, the atomic mass number of the nuclew8p1x+wgm. hkae42z y6d)i wous

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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 ato ;; smq/olqal+.hbd( pm 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 stabhjxfa,k;7,6cxb 7m.vrb wk1 wle 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 withp p7/sq h:yk2 ocev8u+ different numbers of neutrons are refe/eop 8cv p2:yk7u+sq hrred 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 nuclei nm 5d.no7f*p dat21tv 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 5 )x pycs7(9thr*mke jvqf5e;p bw89gis 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 m* 9sp ynd,+zbm4b xqr)ass of a stable nucleus is 9z bydqn*+ mrbs4,) xpalways

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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, . u8l z(:(b /cmjgbldhenergy 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 contributed tinz7m) 20+p(oqom d p4wgnz)hs ,: aado

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy p8::p qr) iz ocwgwav t6ybo(/)hmc66uer 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 nuclvrq 4sc7 aip)*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 concerning the nuclear force is false r;hi4maw c2h9e4v9( v+fecjh2 +uxnw ?

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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 bet4dwc9 s3gfb*u ween adjacent protons in a nucleus issc 43bg*fd9wu

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penet.v r+i51ypbijrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratiy)zzjpo )c (bwc 9h50e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrxl;0, ywctb3v ate

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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 kxc+31dc-w - btobg 0gpnown 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 knkybvkx7-e c:- 42rlm mown 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 b3xks)w ms(bp y(i911ntt sd0 ae 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 a h ,*-iau8 hsx,h fo:x8sz,qratomic 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, tkltt:pv:lo8of i t 4/ppy +bx0m 4fi5,uv6aw.he atomic mass number of vt 0::/k. u+lb 4m8a54l,t6oxpvtow pf pyifi 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 nucleuv9zik y+5bzg-h y ft081idzh 8s, the atomic number of the b0y- +izzv hfd9hik1ty5 8gz 8nucleus

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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 -,,x kx bpe,b1m 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 most nearly t cxsxk3g u78x 20k ei4i:t,jjopqf8b0he 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+ b /*jmaa(trg v4(zab;dd,xd h(yii- 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 mass?sb -k/(kcug3l- cwk o:

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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 radiouk r px+da425zkhbz) c,k-o1 mactive decay, what value is conserved in addition to electmbo)kx145pz rc d-,uk z+k2haric 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 ysmytw):h.zq-iepf 4 dt+u.1substance 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 isv rq021 gy ltvszu2j7bw( ih4ow:a16 d often used. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucleus ig2ohv1s:j6b1 ( i4qv uydt7 l0aww2rzs

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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 particles invvyc;c6i: d nf2 6lq:s 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 detector8 x+)nahap8cv 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 been replac ()pkkrz4ce( l ,w+ylmed 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 atomgcrspy )0p*oj f/kq2: g4lh 6iic number 6 has how many protonss 6/ 0)hp2p: gkgri*y 4fcloqj?

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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 hork2 drml(uj. ,ddh: z c(wk9a +(tnn*hw many neutron:th9hl2a( j*. + (w,(ur nddck mrkzdns?

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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, respectivelyv2rl*c ;zoly1mr- nncgei(h9zow; 72. Hv2mzyh(reng*oow-7r 2llcicn ;91;z ow 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 ( *9xeb gvlhm/for calcium 39 are 20 and 39, respectively. How many electrons are in(h9e*bmv / xgl 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, rbj z78ut j)fz)e2ye :eespectively. How many protons zbz7j tee8:jfy2e)) uare 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 j8y :k k;o1bfjand 39, respectively. How many neutrons are:bo;kf1k8jy j 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 l0-y.n zkrsl;, 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 cardjuze8hfr8d8 3 ap ;n r*v27eebon-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 mass mm p,;l0u;08vpfqpo pnumber 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 energy of4zzb5 uf*4j)yii 4xh f $^4He$.

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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 t42loyailr-2lg0 .s elgs gn .8o 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 twfc2 1rcdc6g2e2:a natomic number is now2e2ac:26 rg1w tdnc cf

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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 anup hs7dnu6d6j4e+lg . d 249 nucleons. If it undergoes alpha decay, what are huje76updd6+ .l n4gs the number 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 decx )l0g..uuijhxib,q : ays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u.)0gxx b:l. iqhi juu, 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 un ty4etut(qps r5jh 1p5 kz5o/(dergoes $b-$ 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, hll2:juil5m+ )0dcnmc ow much will be left after 100 yearsdu0lcl + :m2mljicn 5)?

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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 hallab nigoj /is(qm 4)+.m6+h pff-life is 24g6)mh4i f .l(bnq/ai+mj sp+o7 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 cenwqpz1+*0 s 3xr;c0g ts/ th 08ieinwgrtified 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)5zrzm r j 0*i0lyrhw; of the sample is jr5 hi*z;0)yl wzrrm0left 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 iod; 3gz:h)6f mq-exa phzine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity o hef hg3zm;qza)-6x:pf $1.0 \; \mu Ci$?

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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 activity ofbi9(i82.2 tvro lb l1rdn9nkb bl.9dnb8tv9 ( l irn2rbkoi21 $0.24 \; Ci$. 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 piem(v2*t djbjwa5jbud zd/ /c4* t7u2stq(c( jmce 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. T/4vtjat2 / *jz5q m(c2cwdu(ubj ( sb*mdjdt7hus 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 takej2, qzb9.xnc l jpq/r. $4.0 \times 10^{20} \; atoms$ 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+* g.dgyw-:s)zg lssi 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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