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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;zqkmbh) u)n: 9ka2w c 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 + cjau p1*q bgh,t6no5is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c epbu2vywp0f,on6b( 6onsists 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 determik- b(l2+q e:tewy;rji ned 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 determined4.z otro: mgyjphrq1c9vx 8 +/ fd.7hk 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 atomic mass by A:ez eu/i6qimq i1eo(v 1 sam91, and its neutron number by N, which i6es e1:/ qi(eammqz o19vu1 iof 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 emtkss162b*6/ gaev r2h hu4ac pitted from an unstable nucleus, the atomic mass number of the nucleu6uchr sbeh gpa2ta v 612s*/4ks

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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 angc uouzbrq ,6 ii*0q(5 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 stablwo ms g7fy;g:,oj gb-)e 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 with different numbers of neutrons are raax38e; :(yod q+mnx/m c1ijleferredmmqn di /c3;o+a1(y:exax jl8 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 elemeniwun4cqtlr 01h).9ni t 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 de bf uy4-x7la 77dyzkyl .sv.s8sp;ik.fined 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 protop:7xjg ).)qqkm2l sb7e wec k+ns and neutrons, the total mass of a stable nucleuwkq)q.s2k)cejb gl7+xpe m7 : s 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 sta /tctszd8hm:hd0 wc(57s4ke z ble 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 coo lks6jq0x754xwnw v.:nn bm; ntributed 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 9onzu:-z okh4y 0q(7 vz+izkgis

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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 cl1 o*x 6z4gipnucleon

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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? nk+wwhdwma40z38( as

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostakc2;q-ayd2q w g hkt/;wzf *9xtic force, the nuclear force between adjacent protons in a nucleus iyzqh ctf/kwxq-9;;* ka2d wg 2s

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetras *6xdtgr*6tk199 vxvtzv f v3te

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratebgo4z 132k7lyt8 chka

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr,80 r:thww c6qgxmc3 ri8mxw*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 known asnpirt.3*zjfmdje ih+ v2s9 .8

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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 know 8jt)acewtf shmg u3+,7*wql8n 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 attract-q/ddblmts ;aaw (kh(y) 85k)9nwwx z ed 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 9 n9qrz n1nizt7-:5k7famn fu 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, md 6.ohoyp w9*8fa7 vxthe atomic mass number oow y8axom d9v*.p 7fh6f 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 v/ax 86 +4l uawptnda9 iqgg1ai3 51zremitted from an unstable nucleus, the atomic number of the nucgv9g 86aadpw1 /nqrlxi5i +uz1t 4a 3aleus

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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 93olrvf:tph g(z /b.-q21.5 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 g lqa47y* *m ; )ptfrl+4gckihqamma 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 nucle4bj:xi8-m q z ./4qqs4ychmmrus,

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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 3cyr- se0n/-fvyfsj0?

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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 in3oct9smj9cgjd o42 *x addition to electric chajtcm gx3d9j 9o*o4c2srge, 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 9 0m97 xv2thuhun; lgyhalf-life of a radioactive 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 x vds(ux1*n:p used. This nucleus emits a single beta particle when it decays.vd xp:us*x n1( 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 cuyad:qhom-s 3q0ndp9 7ira 4x-m. wm x+rve 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 hydrogen aw. zw6 lb;fvj5ax;j0 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 rep(seg)4 0 lb(dgu9wldf laced 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 atomi( ip(bezs:by;c number 6 has how many protons?bp( : ;i(zybes

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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 g.xjzo 4tf s-6number of 14 and atomic number 6 has how many neutrons?4xgf.-z tso6j

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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 antv* t f ncebp t*so8)l2h/2yo2d 39, respectively. How many nucleons are in one atot st*cb*fov 2yln o2pe8h /t)2m?

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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 y-dsf1v8jrpn b8, z5 pnumber for calcium 39 are 20 and 39, respectively. How many electrons are in one atp nz,bf1588drsp- vyjom?

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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 f ckhjmt,aq 74m6cxm(1k+y5n zor calcium 39 are 20 and 39, respectively. How many protons are in one akq my ak7 6xczn51+ hjm(4,cmttom?

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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 arecnllspz 20-1 gi/ d6zm 20 and 39, respectively. How many ndic/lm -gz12z 0l6spneutrons 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 protw qb+mw),v:cn3 k nj656lo;*ivvnvcx ons, 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 th3j3 m) wvvew,;2tgf zgere 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 atomi a*va-rz)vvp*b 8vdjnm*2np:c 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 ener)cov(qp k vgol9i.b0+gy 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 remove0 fifr*nzinbv:xa. lo( h0 x8yis3o2: 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 dec wy+ug21t3ity w*h; jvay. Its atomic number is ;uty*jw+t 32 ihvw1ygnow

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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 decay, what0.gek a+ll6z9,ib jhs are the number of protons and neutrons, respectively, in the daughter nuh0+s ,jkiz6 a9l.bglecleus?

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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 much energ:mlx or3vj lo5:vq9+gy (in MeV) is released if carbon-14 has a mass of 14.009og5 qrm+ojv ll::v x33242 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 number 6 unfeyncg1+gk , b li0-.idergoes $b-$ 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 izr v(ngcsjx/ 7/nghh0i8w/*rs 45 years, how much will be left after 100 years rhxnvsc7 jgnr(8*w//i 0/ zgh?

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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 ;xepb1)z pf *adecay this year if its half-life is 247p) pfexzb 1*a; 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 certifie oc034tkzamwjq 7 -6l-8x jdvad 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. Whazj .;9( ;gcyt vymr6wkt fraction of the sample is left afkjv69yycr;m; ztw. g( 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. How many iodine nuclei arp4ip4mq jr-g 9e necess mp94rg qip-4jary 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-life of 3.0 days ha0vmo)m37jqv t s an initial activity of m v)tm73v 0qjo$0.24 \; Ci$. 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 ov,z.*ohx gs41x lsqn 0f a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas t,z*xs x.voql1ns0 4g hhe 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 tatiiqs5n2t.g 4qtl:+n ke $4.0 \times 10^{20} \; atoms$ 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 tkuc v(uczj,:oto)2kho.:g eu5c 61q $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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