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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 part)few;b2 d/hn ohynr--icles 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 i8kfu;;72hi ) e+ gtc7qer muzws

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists os -kzxu:)-bjd f

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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 deuv4 .ajueqnhxs 6,q(/termined 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 determinei (/aecao/p .n/et/ap d 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 massz, vckk97p9nv,nsvv e 5.7q if by A, and its neutron number by N, whicv v,5p9ks, vn. k977eqicnzfvh 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 t+ijtvfb2 bt( 0 :yipy;hb(bytv i2jy+tfi0: ;p e nucleus

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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 i(0 ob0zy avesml+4f+x n 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 nucleus because of g v04imgqn6i1

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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 numbea afzov3i -53xsip:0*zzdqt,( y woi)rs of neutrons are referre zo*s0z vdiift:a( 5yapz -q o)3iwx,3d 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 have nucl87 fk,gyo wxuhvbv4m)((dro 2ea0k9lei 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 definkf5c*mj f u.u1ed 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 separe vu /qq4t:bz6ate protons and neutrons, the total mass of a stable nucleus is alwayszve :qqbt 4u/6

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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 fp+ j31mcyy+9(imxbbp orm 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 contribxw .c/ierg y/9 jghr4yf6r:m9uted 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 i r1c,p1gh 7 hixr hhbe0mc8m33s

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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 mm-vi7 q. 1pwcnucleon

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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 g4gn0qs5(lt dk06hfy 6mdlx* statements 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 nuclear force between adjacent proto5rsn7l1qiwc x 8v9*w tns 5c8x w 7t 1wqv*slnri9in a nucleus 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 penetrat8f p tf2v3r-zvqjn6iz.t-kq df(/h, vmhn+d2e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat drdjc83 c1id0m(2 h 1vayxp /kx0kvl0e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratpht0t *o09i0vvc zxi, e

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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 alsqq6(c, : 9i1id nke1k (oblndob3o0uy o 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 known akae4 2 w5lyalo(z ,it*s

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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 attracx1qh rmk3:,iyted 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 /amhsq5)d mb47ddqr(1 ts *vato

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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 emitte;j3fiv(mns; 8wky(zbd from an unstable nucleus, the atomic mass numbey ib3n8 ; (zjfwvm(s;kr of 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 2s07f;h kb s35aeskk+mk (p5u9 xnzpwfrom an unstable nucleus, the atomic number of the9 auf35hem x5ns 07kp kw;+zkbs(psk2 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 reprfs 8*bi p2a.d7oflla/ esents

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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 d8a11of9;oeahsa,yx4 flk c 8a 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 nuclem7n hqn0pj;fyb620iw us,

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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 massj4zhsgwavt-hg5 5,z2 x ac3:95spff d?

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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 radioactivkkrjdu5z): 18/wkbtm e decay, what value is conserved in addition to electric chb:k5t8 m)1kurz/k jdwarge, 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 substk .y2t2;yqkx +y3hsin ance 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 ogtz . 73(1dnzwt-cn9pf . t/detmh; obften used. This nucleus emits a single beta particle 1( d ghftt.7 d3n;o/tc.m- z9 zwbtpenwhen 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 charged paro muxan:bd h56 ht 0uxl3o7x.2ticles 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 24ad2sxk9fp s9 w)-s81umun gx +dowe 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 been replaced by bub1r 1hy;q +o ogie,od8bble 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 ha)fgnhysuge 04exin q, pa029: s how many protonx,gqy9s p0nf4hi0a e 2g ne)u:s?

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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 ha1g fd6lcj18 hrs how many neutron dlhgj6cr81 1fs?

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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 39, respect5 - vu- ayfv9eqi/4bauively. How many vva/y a-qufu54b 9- einucleons 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 f:kvl th 6veh h+au 6)gx*l1dc1b+- eyxor calcium 39 are 20 and 39, respectively. How many electrob-h 1de*l eu6+xc)kvhxl6a +hg1vyt:ns 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 calcium 39 are 20 and 39, respectivrlij(b l;4 uo.ely. How many l;o(j ir.4bul 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 numf* jw,rv y0 ea)ybn(g5ber for calcium 39 are 20 and 39, respectively. How many nw5gvr0* ) njbya( ,feyeutrons 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, thwjg w2b .m+peol10u 6he 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 carbon-14 ( bi+vnc4*ge u0c v6(hhz qqz1nucleus?

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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 of mass n-) lmcy)z4w r +dulw5humber 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 enmtr)/9pr n*habh g hi.t7j7 urc ,ov65ergy 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 onayl84ou 2on y;e 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 goenuilt-s poplfr 59+yj+l:6-u s through alpha decay. Its atomic number is nowuop:rj6fl-t+ly-ni9ls u +5p

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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, what arpe./vw, r p04jg-db.d.o g twxe the number of protons and neutrons, respectively, p4w,xpdr- 0e. /wvjotgb.g d.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 x *dn/2a*se9o)gktvmilavtq( 8//s gby beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass of 1/v9dqks n2a *(g/x*sio e tltv)/ 8gma4.003074 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 09xd03 ewr1l tq*dkqcber 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 years, how much will be left afl4/a owdoc8sxo b el(t6-t+c0ter 100 yearado/c-46xst0lo lbwe (+t o8cs?

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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 .w8qb/gtejh ( /x4yjymm 8 t2vyear if its half-life is 247 yea4wjx jmtge/.b/8yt(m8 2vqhy rs?

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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 certs)uw o+-j jmi41yu7 hpified 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. Wh j+:l)mzrp7wwat fraction of the sample is left after 40 min:j wl+z7mp)wr ?

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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 iq9,c.1vvun3tp i) a aiodine nuclei are necessary )acipuav9 3t i.n1,vqto 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 an5kkvubpsv:/7(uh k 9hklpo y *mf:). half-life of 3.0 days has an initial activity of bl. m/kkyu:sk7 ( ppvhf*5kuhv 9:no)$0.24 \; Ci$. 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 slm . 8.; o;o zdf muy:1;*hnabcilt0mjcem -6of 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 wn ch-uzsdy1ml;j6:*0b tm ;moo 8mc..;lfaieould 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 takeqhiucv ;mq/5b. *e eghi g.i8m8:s ju) $4.0 \times 10^{20} \; atoms$ 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 takwuit j*a j-f4e) :10ekcut 4vfe 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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