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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 pateva ,bw1(1b/s-bv pz)sv o)prticles has the 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; f1iejj k95df

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusxb e7x;y-*fv2yk tqa3 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 number is deteujc5 g xls0b hqfv3;(+rmined 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 by the number oi qq 87r 0ivhiwp83v-nf

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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 iln / u0z;kw5xgs given by Z, its atomic mass by A, and its neutron numb n/5zk xwgl;u0er 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 -c,rps /dz5aq g-;yfoan unstable nucleus, the atomic mass number of the ngpya--cf5 o,;zdr/ qsucleus

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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 i4qo2 xfpdp1+yuk8 j.x -necb 0n 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 si67 z q:oel4ufjp2ama+ ze 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 but w8g,csmzr4d2 iyrta: o :op0x8ith different numbers of neutrons are referred8s:m08 yx:ztgor 2i cp ao,4rd 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 havk+tk6f;14e+ h0frtqnv)r y r ae 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/.hhtl3m8vf h-ffvf lw5/yr +ycn wk,9- q7we is 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 protonspvfl+c chf3w1o, 3,s *zya gh4 and neutrons, the total mass of a stable v +hs,z*p4y3aho3fcf ,c1gwl 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 nucleus3ksz:vojn* 6 g, 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 cohzr 93nk.m4x,t-/ bqxi6ssrmntributed 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 szz,xg03mov 0is

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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 nucleo73g /cmyhn4 :7uecc win

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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 statemenqlnts aw4 d*bk,b hw,r ,d5h91,wr7hn ts 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 force, the nuc5(5zbaxat)1:1p6 sct4qxdtvx-bup g lear force between adjacent protons in a nucleus ixt6dqs v:bppuc1x5tg a)45t-b z1( a xs

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrate. kfonl, a;9o5wu0sp o

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate 8nr9 txhqzxiy73o(ckfh u0pc,7v65 e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra 0on;d30yxz fhko 8qbytm+. b+te

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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 alsjh r3 ziimn*r ei228a:2ly1f so known 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 8*tk.e*zacsm*ya gb . known 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 bvz 1gm)syo06d e 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 atolp;yj7x. m rqd2,c gky)9tg05 cfb( dh)tz8dc mic 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 3:j*,*hw4(aoxu nsetswh fy 9 an unstable nucleus, the atomic mass number of 3 4shn9jtsy* (wx:a,*ofu ewh 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 atomic num t6xqjwtz*yl p,.kd 0e4wh2c,ber of thed,. p2jcztth4lwk*,we6 qx 0y 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) ee5olc/:r3y nd8lbq3 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 the sh*c7ds;ht2y3mlws/x m 1b 2ceame 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-b9v -jq1qyq r 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 t3;fs; q8k8 )pethrxthhe 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 conserved iv*9n9icu:i ben addition to electric nbi9v ue: 9c*icharge, 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 su(ju,6qu8:qa qkpqbxinen4 )n:z) dx 9 bstance 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 of--q gmxlw1c2wx. ne) sten used. This nucleus emits a single beta particle when it dec -s cmglwq xn1x)-2w.eays. 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 tuxvmt 3xt9wc,f -13hhyl*o 2 po 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 liqu d;c /1ei(kjtq. pba7rid 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 chambers becauast)8lptr( jkqf( 41z se

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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+g :, ix* )/)bbuvd5jflzrm6 m-wfng w number of 14 and atomic number 6 has how many protonsxwgg6) lzfun/f)i v bmdwj5r m:,-+*b?

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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 bqsoxrtx. d -38y1i 2aof 14 and atomic number 6 has how many neutron1 q-.b3x ds2 artox8yis?

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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 zn117k5 ktrlhw+w ysp6 ;l+pp number for calcium 39 are 20 and 39, respectively. How many nucleons are in one rw1wz+ lp+stn6ylk5hk7; 1 ppatom?

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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, e bf2oo t8/dd/respectively. How many electrons are in one a t8/2d do/eofbtom?

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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+6pv *nlwo4tyaua /;s 39 are 20 and 39, respectively. How maua vp+n/64 atwsyo ;l*ny 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 for calcium 39 are 20 and 39, respe3trboh xa2r yk;5s 95 /u5b(yj8 oxkafctively. How many neutf5br /srua b x5ty;a(kjo 352h9okx8yrons 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, neutrons, and electrqa ok5py.) l9ca7g sdn6fp9a 8ons 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 there3pqnr38z x01w r i*ukc in 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 atomm:*mx t*5ies sic number 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 binding e6ps2*lhum hibq 64rpshx3/ o*nergy 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 rem;bwe) j depp;h,icm:*ove 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 decaynmtm k9k e-;6, 1vwozi. Its atomic number is noe6w ;m9kzi t-o m,1vknw

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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 dc26l/r tf9gjm i/5ulsecay, what are the number of protons and neutro 65ritl/2msg/ u9fcljns, 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 nucleus by beta decay. Ho6rv5*jkp) v 5 h+garcow much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 urkoj6)pcah+5v r v5* g?

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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 undergo6wfbg tl3f2 k1es $b-$ 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 uq*fdw (v(0 shae mpy+eq. 2rwn6ao--100 yearsq-eeuop( aavd. wq62*( f+m -s0w rhyn?

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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-lh suz2m x *s.b/i49rip(qxc k7fg25pdife is 247 year5i/h7mxgkdsq.9 *2z 4 (r2sppxcb uifs?

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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 certifienubaon 8)spe84-/ j flin5j 3kd 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 of th2l-zy n,/zbgqtim* j -e sample is left afjq-i/2*z,ntg mly-b z ter 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. wquo6eezqeo;3x/): wslr 8) a How many iodine nuclei are necessary to produce an ac:3 oxqze)a8l);wrquwe 6e /sotivity 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.+bmyl2 y 3s8un0 days has an initial activity of lm3y n2u+8syb$0.24 \; Ci$. 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 ofpntt*g+44 mcw a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given p 4m*ntcgwt+ 4sample, 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 take:wia xa5:qng: $4.0 \times 10^{20} \; atoms$ 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 n(m.740e oed rybw-5wn ku/opa $4.5 \; Ci$ 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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当前第 题,此次习题练习共有 71 道题

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