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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 tv1r0y+8 dkpd0c8/s h ipfiu3 whe 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 i6+n2zfgon xx -.hye-ss

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisk q7o-nbkfztpe.r j (02ob2ijn ml -tbv0+k.-ts 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:x ceu-;c8hi g 0sjzxx8wymf8, e-s(tjq ro3 .d 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 bylg3p/ rjk36lu 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 atomic mass bgq9 cpdfb7 qx6x( l:9zy A, and its neutron numbe9x: 6zg7 q(9pxlbfq cdr 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 nucleus, the atomic mass number of tu0(: 6j 4r8nfodkrgh ekoiu-8he nucleusokenku u d(jh0go-f4 68: rr8i

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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 int lsfyxy: j;-* 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 size of a stable nucle9*zh5a t8fxoe+ vba7aus 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 with different numbers of a sn8f,oy+-onneutrons are referred n8-f+os, nya oto 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 nucleim0 9(6x6 nz 0).ewgge lmbbymi 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 defin( y 0vztzk/g;ft0qrf0fs g,(ied 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 uz1ujbh0c j;5o,/etoi.xemdm + (oaf5)mg 4 dand neutrons, the total mass of a stable nuc 5tm+5dh e,/u exoj.c d;)oufjg04(1ammbiz oleus 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 nuclp)ock,x0u7 v aeus, 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 ate2q7m v 2f5l)p/dy dz nucleus 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.g x9q-k80mwqef3r ea

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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,kqgprq(y 6u 69f;jaj0j1 wpe 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 nucley pbr)f-*,giear 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 electrost)+i2rxl6gmms*z* s ys atic force, the nuclear force between adjacent protons in a nz*s+imls2g* sm) 6yrx ucleus 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 penetraterzhi:uf9:e a .

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrs+ydx9 fi sl9)8agkik; (sj fp4 tt*j*ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrateetjy*bgclsu+d8s3x7 (: ( lsf

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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 kno mvv h*j6.dh0 +csh(jewn 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 knmp6bn5ara00y own 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 be attrac( ysei;1sof2 zted 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 equal me rbybtg0f;d)(vn(8 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 emitp+8 oba9bzg7lted from an unstable nucleus, the atomic mass number of the nucleu pbab+lo987 zgs

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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 froxszz:+f( o/k h(9p xlom an unstable nucleus, the atomic number of the nucleu(x+p/:fkho x sz9 l(ozs

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX --4 bcb8-tpfr u MY - 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 the same as a gami(-6x f wxd(pcxly: 1uma 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 z0f-tztf9o 8vg8c(hz5d5zy snucleus,

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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 vmr07onmklzd,dq7q+g *c50twycl 02most 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 in additio1 1fpj0f xd *em9uyhz(n to e xp*dyj(hum019 eff1 zlectric 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 substance as it decs )ig9q1wt i6:s2exulays?

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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 em0/i orze h5 u94 b37i7k mceh-vnkcj8sits a single betaciu c 9k4mb h7o0 53ez8sh- vj/eirn7k particle when it decays. 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 to curve chacx; *bv 3a u7cl+gbgc.rged 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 usea:v j2uxc ku)a(3p tk/s 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 replaced by bub4hx,o tjis8yi :kz+6.jykj3 able 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 *uw 5+yds:vsr lid2t* and atomic number 6 has how many protond u:**l +2tw5viysr sds?

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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 n1.;8 v.oazrs.fpz0t g hbax:s umber of 14 and atomic number 6 has how many neutrons?f aaz1s.;rh.0xs.8ztp og:vb

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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 a.9)inlm s7vl 1goyctl vp 9k+;nd 39, respectively. How manvsik; ntl v+.c o197py9lg )lmy 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 fo14dz0j 4ku0lrwj.i wd r calcium 39 are 20 and 39, respectively. How many electd4j lzw04w 1k0rdi.uj rons 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 calub -i 6uu9vg9icium 39 are 20 and 39, respectively. How many protons au 6b9 iguv-9uire 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 aznxoab;b.vx7ex:z-2z kp 2.calcium 39 are 20 and 39, respectively. How many neutrons are in one atob7b-2a o;x:xe z2pnza.vk. xz m?

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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, the61a uqzh.ixn+e/n-gtwlnp; )z f-c 8 b number of protons, 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 carb)7dyi yf7 zd-qon-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 ooqhl9au1j+ g2nl+g 6r f 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 en+bx+aaqa u:7oq *p8p0 tuiihair17k*ergy 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 requhxj 7kcoa 6 x5:68jydkired to 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 throa c)a 9 w (jvtl ;hm5v7:p87zemgkck9lugh alpha decay. Its atomic number is nc 7zhlpmwv: v7jca 5;m8gt ( e)lkka99ow

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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 alp+j.7c.ut ;r xcsp :txpha decay, what are the number os;.t +pc rtxj upcx7.:f 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 decays to a nitrogen-14 nucleus by beta decay. How dc-myp(vc-kq4 al ,4 pmuch energy (in MeV) is released if carbon-14 has a mass of 14.003242 u m 44qc-pd a-clykvp,(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 undergx*)c scp3nhe3oes $b-$ 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 yearskdn9 ka0trn t 7r)y*ja sspkz/.hw490, how much will be left after 100 yearsk9 z kp0j 4adr r. )9nw7nathtsk*y0/s?

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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 i y(wlsg;e.6uu 6 (mryyts half-life is 247 m6g.;y wsy(yl(6uu eryears?

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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 nj)(s-*bf mv.bx;zz z certified 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. Whatq:77+rd wstropc )n 9j 7c.xaffc7- vc fraction of the sample is left after 40 min o-pnvc d7s cfc7q7+rr)a:.tw9f 7cxj?

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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-y6 m(dknkolko3tr56+x te,e are necessary to producoerydtnmo3-k6,kt+e l( 6 kx5e 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 j.7q.kqs(e ie9 w9ick of 3.0 days has an initial activity of 7e i9kk j(9w.iqcqe.s $0.24 \; Ci$. 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 kc b )+)4x3 :ycjvgwyqfrom 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 5730w ybvkq34xj c)g) y:+c 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 -zjl+ mx lja/u863cq1,qkompvk c:. x $4.0 \times 10^{20} \; atoms$ 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 takocgtu/:n xf - i.k(5jde 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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