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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 ib vbd : 1: m3w5xbh.boved8/vthe 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 c6b 5)v.ijd 5 35b3 axo ojpb4gt,msonis

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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(nl(tp rs s(mtf fv0.)6e by-v 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 d*.kx+hw2hjau* xd h7ietermined 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 e11*x,dxmat5 n4t6 usg ;bnnr is determined 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 l*l gy9v 8kxea6(gh7jby A, and its neutron number by N, which 6 l* vgy7x8 ghekjla(9of 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 at lps4.o,q0+8woykfs + x3qderomic mass number of the nucleuyq4 .e skxp 3odo,80s w+lr+fqs

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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 insed g3pyaw +z*t1vtox+8v7)su jp; +v 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 beu/8+ yub)jzhycause 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 withkv x9**j9kwd6e 3 azp cc6m9wp different numbers of neutrons are referred to ajw c 6wkek639cpapd9** zx9mvs

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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 nuclei wiz3y aq3*,n1ifkjbx 8sth

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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 defined aq0 tbio,) tdm )kk5pv*s

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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 pr0hdru) )-ainbotons and neutrons, the total mass of a sta r0nuh))ida- bble 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 nucleus, en x6o5ia:ge,7yap1bq bj* qjs6ergy 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 contributfeg.t-j2;)pf8cb cvr ed 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 perk: ) twasjb(k4 nucleon 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 p 5;;(iktxvthb p84wsler 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 nuclear force u * jz1*(tinsais 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 b7(ullu*d i)jcgok/ gr-l(9ubetween adjacent protons in a nucleu)ull* durg(cj/ilok g97 (b-us 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 penetrapoq;l7 2t, uz2zbcgcvhs 6:f0te

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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- 7zcyw0vag t:g2i 6lse

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet/u) afvb8c3l-h +,qr4 kavpdo rate

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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 znr wv6(ye t13known 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 knok 90u lp6 7igqg,m;8nttwg3t xwn 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 -2 32.cjjyuav.ddvao be 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 at bw84usd3l)v9 gnsda 9omic 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, the atom07v n1mjf,j zmmj3gy5 ic mass number of the nucleu 3vjj 107mzmny,mfg5js

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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 unf ue8*gwpagi8ftn)wp n6bh 6;8: pji-stable nucleus, the atomic number of the nuclwn)nf8a8:-b; 6g ipfpjh68 gue*ti pw eus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX -+ q z4svp.ep 0rin.f.f 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 gamma ray?1+fuzusk vn3z 7*l-kv

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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 nucleus*/1+cnc ruqts.p p3 ym,

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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 mo+5 zgvgxrbrr e w2pa- -9aj(9ost 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, whati jauxy by*;h*7fdi fz2d, v7;8.bzse i/ v:rd value is conserved in addition to electric charge, energy, and m/aihd2 bv i 77 ,d;isex.zfu f:ry z8;*vydbj*omentum?

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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-lim56 s be7(xo 9wo 4sr qdw9j7xvcogw5:fe 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 used. This nucleus emits a sin sap0m.7o5m ohgle beta50s7.amo pohm 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 fieldb: .:nv v-wrek to 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 liquid hydv :p8x4mlciyi)a80g); bqsjj rogen 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 bubb) fnz(noi c.u4le 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 6im-q ) tsjvx.0 has how many protons-m jqs)vx0t .i?

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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 has how many nizp6ghv-s:pf t3* - uvr;e6boxp .:obpp9x(ieutron x p:6epbpsfox p*-9 orvzu6v-pg3b(i;t: .ihs?

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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-0 b)x rwha-rle*k/dc calcium 39 are 20 and 39, respectively. How many nucleons are in oncwlx-/*dk hre- ba0r )e 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 ch 7x nz/-kv49*kuup*ur0ed mc+ ui-ax alcium 39 are 20 and 39, respectively. How many elect4+hauzcrk-k *ix x pm/ued 7u90-uvn*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 mauo 5)a j0aa4cs xpt32qss number for calcium 39 are 20 and 39, respectively. Hoa23 xq5auocj0s)4 tpaw many 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 numbezl qn/ml9w- o 6szh;0xr for calcium 39 are 20 and 39, respectively. How many neutrons are in/ ;6w- lhlzs0om9qzn x 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, r4 zyh+7:lo;ev gmvdi*t5z;a +idv; ineutrons, 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 nupj 9)g9)ej-wf(ajjcm cleus?

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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 ofd8o-o2 t6dlt 3k+o xbc 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 enlq jt -i- au6 +q*b/zzk13twtkergy 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 removetr,p5 skh0i edc*i678.gg.njqs s(al 6z/ux x 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 riirr * wm;gg * ,ix5mc*m;nxd:j avjn449 :zsalpha decay. Its atomic number isd:;m jgw *x,9amn r*5cij i4;svnz4xig rm *r: 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 nuc 1zgn+uync2i qb,8oy5 kp492 k.gfj mwleons. If it undergoes alpha decay, what are the number of protons and neutrons, respp9.g1mjn5yzi g, w4yknkc +uoq2 f8b2ectively, 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 9:j:j10tul 1 m yb4kwclcsm2m decays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u andm:0 ywktmus lj121clbc :9 4jm 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 numb.:dgs)) -a6szm tywaber 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 muc21o-enm :1dwbq- jmjn h will be left after 100 yearjj 1noq2-1 nwm: m-ebds?

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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-life is n5zn0tt s/* cn pz:a3x247 ycz xa3zt 0*t/p: sn5nnears?

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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 ce4dwvwvnr(k :u9r7.xnxa8y d/ rtified 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. Whatrnzw f fydsky:ai2). 66b7x4 qi roq18 fraction of the sample is 6ykxa4 fzq) dowii.r27:18fbrs y6q nleft after 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-13-e /6kc zf9kqzwq14e4pud:vmuq9 4 df7 is 8.0 days. How many iodine nuclei are necessary to produ4z6e / v1qqu 9fmckd-wkz44pf ue: q9dce 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 o (7d .sr5ir1pptmsjb+f 3.0 days has an initial activity of dj5r s (+.pbts71pimr$0.24 \; Ci$. 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 dueypkry er9v e 4 7vg(,ie5-dkrim3,ij 3 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 sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The half-life 97dm3-,k v iyi(e,g prj r3v4e5 yreikof 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 takqxktv9j g4hoe-7 l1spw3 9(qs+jl rs2e $4.0 \times 10^{20} \; atoms$ 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 tak u3ip:0fgbn,)c po9x ue 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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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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