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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 least mas)pu:t t2hi sll,cnjq0n2 85q2.zgnx qs?

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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 ivekwlmy texc45hi2715uct )mk9 :.fc s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusp2efv0:v h5 lbzx9 w2 vbd9)ld consists 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 numene16 fumsr18 ber 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 is determined 6 bl) */nzeb5q g1gnrxiu w/6cby 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,6om/ f v-vh*tq(rd)e m its atomic mass by A, and its neutron number by N, wh vo- /(m)hem*6tvqdf rich 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 unsru s,9qrc ;*revh0 3attable nucleus, the atomic mass number of the nucle0rurc*q rvhe93t,;s a us

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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 atof,y 0nsbdk2 nzo5 zgm+0r+p(cm 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 ofr g 5.hmcp1 tz)ydix9-yt6z 0giig 9t( 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 buj)8jwdl8gz pbt 4: 3hiy)jyn/t with different numbers of neutrons are refe)3t 8i/bphgw yd j8ynj z:lj)4rred 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/1x + vn*nyd z)s0lkvj 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 is defind6/mz a:ns,yf ed 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 protj /s36y+ ezkgcons and neutrons, the total mass of a stable n3zye + csgk/j6ucleus 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,l 1g7661x2t; t2zpumrj i8xqmy .hksoy 1uay) 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 nucl wb 2+ybka gl6*lqswby*.15 peeus 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 is rcpp 0g98hn0c* /v9;fmgf wsp

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy p 3m6c 9nuv0xtm t)ci*cer nucleon

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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 6 sn9*wmbi:uvuo9ow6f /,cky 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 force, the nuclear forcpts0iw*h1ly36w x pl6 e between adjacent protons in a nucleus 66 iwhls3ly*xt0 wp1p 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 penetl,7 (xh+sxtw3a 9lhdf4 s aeo(rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrud ,.j5* 6pj)ob)qdof ah(jn,a jmtr 4vwnc+7ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat*085t tw.o j hud2nsoqe

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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 known;a z:/q kptja: 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 9xw0mw*t* x1samsnhe43 d -ao 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 betwsj: yd75j/,cm :3 xvw/zolw 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 ij l/x(0 nvr, 1s)r/n *ymsactatomic 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 emitpze1f+r/o 6hhceq9fsj ij 67 2ted from an unstable nucleus, the atomic mass number of fqpr76he 16ih/ 2+efs9ojcjz 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 nucleus, the atrskz s9lv g,w;4jp9jr+zt *z 1omic number of thes9w; +4p zz1kv,jlj st*z9 rrg 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 )nnj ; .q+/apxzodc.drj0b d:s

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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 as a gamma rf8rl 2fi/kqqf3 e 3-m i9v,t8ceeo0rpay?

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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 z 0 wh22 j6cnur;ddg8qan 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 mos6tv popz-zw/4t 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 cooy4cja. vluwwyb/ wgx 6tof- tz8 1+;zm*26z dnserved in addition to electric charge, energy, anam4g.b; w*ujw66z / wldtof+81z czx2ovt yy-d 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 it dec+ bf08g4hosxi mnk): ways?

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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 e .0lhvww1* kvfqg2b )umits a single beta particle when it decays. When this happens, the resulting nuclef khqgv2.wv*l0)bw u1 us 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 ev5 ;/0in pwej yu/n;*p iavo2uses a magnetic field 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 that uses liquid hydroataaqk-s(,i1pgy+-;dy ft b j71gb9kgen 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 bubb s -gooixhc77cur5buyk43z,t9pl* (tw xt: 1nle 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 nu)*l pgoxl8o*uufcw b,4xnv ( 3mber 6 has how many proton3vuolfb(lo *p) 4x*xcw 8u, gns?

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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 how many n.xas co nv5q6(eutron o5 v6scq(.axns?

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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 fof uo7 -zlyix ;9*lb7k50hpkbir calcium 39 are 20 and 39, respectively. How many nucleons are in o9 5k0bi-* olb7fkh7pxuiyl ;zne 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 calci*e +ypvv8ehu+ um 39 are 20 and 39, respectively. How many electrons are in oneu*8vehe+ p +yv 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, respectivelyko1 uon grupc7.t+0uuj 0,ao m5gal8 qn-0dz,. How many po -q djua,lnz7k 5oauo8g,0gu1.u0tm0c+ r nprotons 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, resphj0muc0*vea: q6lo :tectively. How many neuj :h a00qv*utcoe lm6:trons 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, 8dhve5 q5s 7rlneutrons, 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 ,fwoxvu9: 8 a+cqyqyrhf6 - j4pzr2b(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 nux bi1h (u.rgj7mber 15 has an 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 binding905t kvwzo.vn4 li v5u 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 pr4lgnl9)2 vum*prh5;nd l:u qy ,qk)pvoton 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 a(rvwb0y6khz;h *mhh eh*m ;m )1t( xrdecay. Its atomic number isw1 r6( ;; vhemrmhh a*mtx)h*(yh0zkb now

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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. Iy v;ifv36rvn* f it undergoes alpha decay, what are the number of protonfvv 6 iv3*ny;rs 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 decays to a nitrogen-14 3 hmj,zdbbu3. nucleus by beta decay. How much energy (in MeV) is released if carbonj. 33zh b,mbdu-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 num:fx74+ae2;muegx p j*6tsqzc eo95dwber 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 yea5fspega wp /c3t4 j/6supxe ce*,3a 6ors, how much will be left after 100 year* ps3 go /asceapewc/ 53xf6ptu4, ej6s?

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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 ivhdzt0 lhjr4c neav3ws6/.rfjyp.g ,2,+uh/ts half-life is 24lfhv r,4vu pr ascy0e/z2/.n jt63wd,+jh. h g7 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 certif5 xu/l5(.yb tfb yhb88mank8jied 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 fractyqi/o m+qh* bpvkcb5 xo:7 x0+ion of the sample is left afte7 bm/+yx+iobov0:pq*kq 5cx hr 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 is 8.0 days. How many iodine pjv;l7 d,y;ps nuclei are n;y;p l,v7pd sjecessary 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 half-li(:shepckzg g/b 4 dbw2)yn68sfe of 3.0 days has an initial activity of 4 6sg 8ew2ykb:zs (pndbhcg)/$0.24 \; Ci$. 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 :q2)o lbnpc.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 we would estimate pbl)aq. :n 2cothe 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 takz13 cyrch(e s: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 takdpt( +gzn1gn 8e 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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