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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 the least masr n4ww,ilv8 w y5(uh0ds?

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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 is7)s+ on zzwgl4

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi/f yv6d2fy,o9 6zwpf 8gz*z0uzs pvu,sts 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 determi3ezxz8 hhvt: :)m3jpr1fq a+nned 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 deterkgt7(xmtsh(i ah-4 i s4lpt, 9mined 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, and its neutrof+d w om8 k(fvm/u2k(kn number by N, which 2k/+(mvmf8 u ofwdk(kof 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, t emif o3l+31qahe atomic mass number of theemi loq+3af13 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 in an at tqpru)q3m4 9,qhr)jnom 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 nucly )ghl .o5(wpteus 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 rtany 9/k,no1 ksz63wigk8 bn/eferred b z9 w3yn6aio8k kt/kn1,nsg/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 elemenl f b+wwbo+ )k;n2hqa/x6s 4kst 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 defined y44/sqb uxo -o43uuyr 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 and neutrons, the total mass of 3 z--; izdlp/s)nif39po wnstdf2 nj.a stable nucleus is al;.ln nn-z)9 zp2dt3ps3wf- f dio/j isways

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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 nucleu*6n/n .e(kzuhlvsa l7s, 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 contributn w+sfoi8 5fi,3t- qox 6ve0rned 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 nucleonw2 g ;n/vz uomx)8qitzx6uv) +mn/ uh4 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 per nucleond wf8o: 7p9igy

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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 iy90t j4bg* sqihas3z; s 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 fo gvdo7)wr4 n6gxys5 bo8efm/6-, qgndrce between adjacent protons in a nucleus isx qwm-bnsgdnr v/)y7e65 o d6go,g f48

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrtxgls7s g5g 0j.q:0 oxate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratnm tnkj5g8bgaw85*)q0 um0 e2fts-bte

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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 +k lnr6i.zmc /en):ecte

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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 1z*jbstah9 1fjp 0(obwn 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 an dwxuhz004 tglu8:-ps

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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 attrac2o)01* b h5 lskbwo3vptk gln(ted 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,7xptat1f i .c 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 ac yij3+p9xb,o4 +t u4hgdxk7ftomic mass number of the nuc+u4 9jfthkc,7x 34yoi gpxdb+ leus

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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 i,8v03 hdq i qtb9n xs67qj*kogs emitted from an unstable nucleus, the atomic number of the nuclkq 7qnqvj6gdhbt* 9s 3i,0xo8eus

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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 representsf u*by/t+ f3me

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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 th,iaw81k cs6tdk er o2)e same 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 nucgimb/iz;50cv ,a((+opsi g oh leus,

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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?slxt1 iyh*5j inc r5 xv-)4sa(

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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, whatl,taa d:ulp;37wc w j6 value is conserved in addition to electric charge, energy, and momentum?awt6c3w, :adju l lp7;

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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 substk4bwz3dk : 5tyance 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, bx od+xk5tta1l2mx-1 carbon-14 is often used. This nucleus emits a single beta particle when it decays. Whenl-1okatdmxx 21+b 5x t 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 magnetic0l q51w4iao o;r0djzl field 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 hydrogen t+6-3i0 b jus 1 n)ausu+ecuhkis 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 bubbl wj;e,7u m atw;dac(j6e 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 has how many protlze+ss frb,40onsl,fr0ze4b +s 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 des5t 6 a5s bcq;lhywu;-(z+j3 i6wcy mass number of 14 and atomic number 6 has how many neutronb56wz5wld ;s 3aqy6(cuhity +s e;- cjs?

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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 fo; ih)paynrnwoz1 vbyt(( 8(x0r calcium 39 are 20 and 39, respectively. How many nucleons z8y0hniwtayb( p; o(( ) xrn1vare 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 for3e4de:2 cj c)cg3iiwz efmfu+rp:f ;/ calcium 39 are 20 and 39, respectively. How many electrons are in one a+mdcjw3:cgp)fze ;ic3e :/2 uirf4fetom?

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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, respectively.vadt3 i 58e7gk How many proton3ik 5dat8 gv7es 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 398swey pq /8f-.(by7.q v(fshqb9hoqj are 20 and 39, respectively. How man.sqf j(vq8/9bw (.ohe7-y s qbpfhqy8 y neutrons 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 prolm g2p4i,em)jqq1pa/ gmhz+y:)v r)otons, 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 nucles*10sz gw ,qrxus?

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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 x;z pt2.onz l5mass 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 energy of sd-jv1+ 4urvl$^4He$.

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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 one df6 su8goijqr12 f(s: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 decay. Its ce/x:g7fq+jqatomic number is nocq/x f g7:e+qjw

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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 undergoesgf2 f -aa+mljvgq:bch 1l ,-rz) -*rcc alpha decay, what are the number of protons and neutrons, respectively, i-m)-gfbgavr h+2l-a* lc,:czq jc rf 1n 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 7jsy x)xr+0wil+ zsc2decay. How much energy (in MeV)czy+r j7)w +s0s xlx2i is released if carbon-14 has a mass of 14.003242 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 6d5pnpgy59 f )q8k2 2w d8nfgfy 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 after 100r.ir2f2puo r;oe;bt7/r3hco year/forreh2op i7 t.b;3 rru;2co 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 its half-life i2a;cn4-jqqr2wv2 vfra . 0pfc3og bx5s 24gj35 22qr2 rvaxqf0fwn b .cc-ov;pa47 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 certified aixh(,lzml z;d 9 ;yu*yt $10 \; \mu Ci$ 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 1md9bo w ((0oyat+srvpd*/6 lw0 min. What fraction of the sample is left after 40 9dy ro0(*mtbldwov 6 (ap/ ws+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 n2rk*fs*xp6e7 is 8.0 days. How many iodine nuclei are necessarsrk**pe2x nf6y 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;-m rffc qeqq ng234 a8oy:l /t2 lg5j.lr7qwb-life of 3.0 days has an initial activity of tjcol rg qg /2;327aqfmq5.by :4nf-erw ll q8$0.24 \; Ci$. 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 5vssa 3 o2s(-crw/lkxof 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 cw 2ar s 5ols(c/sv3k-xounts 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 1 ) nrwv074.ikwprkd v$4.0 \times 10^{20} \; atoms$ 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 takes/j q+f+m ln8r+y lx7cfne3971ma c ot 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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