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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 :2refxh r)6aw 0rzq3vthe 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 is rk,-qvve g5s mbkgu:t6e-6rznxb8/ 9

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conefl 6*gbft7ln 9ayf bp0*zh -*sists 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 the number ma + eh slzo**r fbb8.fr-(ng/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 (yjwp 7nm,+ tv n-.adidetermined 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, its atomicc-hx g.ms5-njnu*p2n mass by A, and its neutron number g*-2s c hxnj-.nmp5nu 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 an unstable nurm(+6ys g fnqf2w9*swcleus, the atomic mass number of the nqfgsw+69*w2 (sn yfrmucleus

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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 atog ks8i9of4n 9tm 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 skvy-r.c(ex olb:9 /d of 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 butv85lsprq6l5 m with different numbers of neutrons are referred tos5qmrp5vl 6l8 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 nucl.ur (q g)6fqximvwy l*ek):6 ;8has ryei 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 definy ;klzw7( d3tjed 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 m4rhwod3 8 fwpbyas9.-ass of a stable p-w4a d3rws.8boyf9hnucleus 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 j-qsl1. p5 2yxm5wtxxrpl 48e form a stable 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 nucleus is contribh6ut 0m4r*hin y:w a-xuted 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 nucleqya,pksfi); q97rhyteb v+ ,s 7f 2sn3on 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 nu9k0x- )3 a vxh4jhywencleon

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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 8r e(firyr-y9n( jqzhdr.9y ;concerning 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 electrostatic for75qs5mxnvur;tv .d; 5m2c hzice, the nuclear force between adjacent protons in a nu;5s nd.v im7vt2urchqm5; xz5cleus 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 penetra7 w wt9lx*v6bo2slv +ite

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratvx(+mua.9a vde

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrnm m)wgp3*wtse /3t2k 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 kcyjj um) 3x8w,(6ghs ofj 3iw9nown 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 as.b9yssjyt 0yo r dszs:4g++z )

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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 attk )zjcnzh7tk2i bj9-(racted 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 mass jnu+e m.la6fc +sl,n, 8rz2qsequal 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 nucleu)3oip -my n6hes, the atomic mass number of thhipo 3-ymen )6e 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, a.d.x/gsgq)j4fgn 7s3xzmmztan.;7y( hw+g the atomic number of the nucleut ggaxsm.zq.hxdsj4 wy73 n+(/n7 .)mgfz;a gs

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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/v 7g7oahd ufopt;+c; 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 n(s1cz+)tp g pn))g xdlearly 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 emqm1(6 s4h2 2umod , syuao;y rjm87 csx1xcy1hitted from an 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 mostnx (us )glto3o5.f;m r 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 conservedi,fn1-a2 lv6yy+egpt rd:9x t in addition to electric charge, enep+-lgvy a, ft6:y92er ix t1dnrgy, 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 radiox))j0q /z jrzjhc5w 8t.kl +aractive 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 nucle ;j(ua84hez 9eghij3u /cz ua7udm( .dus emits a single beta particle when it decays. When this happens, the reseu(;ju jgiu.zm/h734 h( uzea9a8cdd ulting 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 c2:cd s, tq7eckharged 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 thag.jc4(oo/ zfk 2o 4jfct 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 bee9v i 7wrd6svfz:2xz7rn replaced 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-rcx.i ipf/qe dnqj2 f8e4;m / many protons/icf-n4ipe. m /8exfq ;2qrdj?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomiuge-c7iisd6 (c mass number of 14 and atomic number 6 has how many neutron-e7c sii ug(d6s?

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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 2l0ol tj6*vq k39, respectively. How many nucleons av6jo lt*2 k0qlre 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, r ppsl75u1.( io2x93pvonj9ey 4ikk) i pczjx(espectively. How many elec75(n k .jjppx3 oi (eozii9k)l4vxpp21us 9yctrons 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 number for zk )o61p:2ybczlaz*y calcium 39 are 20 and 39, respectively. How many protons a6z)pky 12 lb:cyoz *azre 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,hlul ki 1kr;b5: xts)7 respectively. How many neutrons are in one atomli) brhtls7ku 5k 1:x;?

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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, neutrons, and electrons is 4lqni ,4j s35ww llq)+c1

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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 hj,gyng 4nk53in 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 k9o2 o(5ejmk s15 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 binding enexu4kbc4 1,db,ohzrymmx.z(61ec .v krgy 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 vqwu;8u 8ea )rk;k(ymfrom $^9Be$?

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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 *5umz+* 8cpjnz/: z+bgiog dnthrough alpha decay. Its atomic number isiu no*g 8*/+z5+c znpmdjb: gz 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. If itv /y1cfu 5nu l8xu/a;w undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucleusxcv5/ 18 ; wluuau/nyf?

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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 nucleus byj t:.;e4y6d 2gqinofq beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogetq62n gq:i;. df joye4n-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 :9gb9 ck xs3eynumber 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 y8,lbq iu o-n+l- iali0ears, how much will be left after 100 yearsinl8 q-ailu0-+,o i lb?

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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 ke9eype yx8 .9;cbin/will decay this year if its half-life is 247.9/epb9ne c8;yeyi xk 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 a1sd d(k3(o1.inhbbr*by nqw )t $10 \; \mu Ci$ 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 fractiongcbq f;dgzm29 ;*.wtd of the sample is left after 40 minwc* z;ft9gd q.b2gdm;?

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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 qi18ee0q:sscmany iodine nuclei are necessary to1e8i c0qes: sq 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-life of 3.0 days has an initial activbw1l;r f.b51 mhhllj :ity of jl:lh 1fl 1bw;br5m.h$0.24 \; Ci$. 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 duz :i8zdr; qx+ce to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given saq; z:8xdr i+zcmple, 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 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 tazwp. c3xv ker967yx -pke $4.0 \times 10^{20} \; atoms$ 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 0 )ol 1j2y.4 : stwybub94+k capzgrkf$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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