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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 par1abes (cz7 /y)uxv+ vdticles 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 uz9 pz cxg+ ,mtb.4 l0bfcok-;is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus conslqj qyi2k*o a95k.p3xists 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 w;hx4-vlsf1,9iq mse, j 1 zxmis determined 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 determ7uav3x )ky f5rined 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 Ai3v35 3e9.( lm pna-voscpxqm -bkan5, and its neutron number by N, which of the follo ma .n3mp9i5 eo- xqbvv53span(l-kc3wing 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 unmjal13*z mn4ij4wu,s/br zf5stable nucleus, the atomic mass number of the nru ms/lznb4 1,jwf*3j aizm4 5ucleus

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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*6*pf )wps z w(n0ccup 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 sta p(0inyg7kmb+ble 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 neutrz,;: .uyvzln pqwok0 6o ,ehd3ons are refzkhyd,:oevp q63 ,. wl nuo0z;erred 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 nuclei wit(ef) ,a5wq ;crp gh6rih

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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 isk-0 ci+j+xsfz defined 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, w ub622 h/6cbd/cv*ci)cpbp un0 ,ixb the total mass of a stable nuclewib0vp,hpcn *c b2cb/c2x/)6 uu6b d ius 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,vef3e cz)72.xft (q4eis(o ne 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 of8;tz35 kbvple a 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 y8f wvb8 6l1q/xfmn4bc(7nyfo 5p 4peis

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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 num84e+xe;q l qjcleon

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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 wu n)68sgvb0kywp) 6 ,1fvnxz 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 forchw3 bjw h kl*vyp9-l5*e, the nuclear force between adjacent protons w *l9p -h*vy3w5h jbklin 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 penetrf4kquir- qs8i0) 1 ie3 kqd.ltate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrafci 23+km,og 2q dot7ste

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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,lqcz g fegz 5vq4(9d9te

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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 kngvg;;ol ru(; 19f eyzrown 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 xq/e;u2g tyr0w 3a +6v,kx.aghsqfg)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 attracted to *4/i: l+0n sxmo4ujwm xpqa+ea

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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 3wug dvmg1b 49equal 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 fu jd72el xa1- e )um9vt)nq8hgrom an unstable nucleus, the atomic mass numbx u 8) vh1gaj2t )mnl7e9edu-qer 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 particl9m 5-nwkwr p-te is emitted from an unstable nucleus, the atomic number of trk 9mt-5 -wnwphe 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 - Man3n/o f:k3 0 krjguwe,b6h,lz ) 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 nearlkk8w: 9ud8f p; sksk5py the 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 emiix( .j8 y;vggltted from an unstable nucleus,

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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 moawz6 lqa-b8 c7st 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 value9fewc 0o:4kg q is conserved in addition to electric 0fwcge:q k9o4 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 subs1spbb8pld25cxc27 l k tance 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 emcm, t9 fmspc7ror(7,ho g,z4 nits a single beta particle when it decays. Wf ,m7rmr ,co7sn z4pgot,9c (hhen 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 curvhpr. scvq 5xx 7oqdqkv:: -/(de 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 hydrrx8lp)h -2bswwcif 2 .,yrx3h ogen 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 bubble :b btxv7 85* 3mwwk0 , (vdpa)qgbuzfqchambers 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 n*0j m0g;drfy 6 has how many proton dmyn0fgj 0r*;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+*c:u)kous d1l 0xrcz mass number of 14 and atomic number 6 has how many neutrozocu :0s x1*k)clrd +uns?

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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 2::j 3bj 6 nnq9jm7uw+zf9cwbo0 and 39, respectively. How many nucleons are in oneb+bnw m697wnz:: 9qjuj3jc fo 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 calcium 39 are 20 and 39, respectivelyy 18w)tihuwy+ h+n7ez. Ho t8z+h )+h 1yeyuwi7nww many electrons 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 hm+c l epv/tl;n7 w(w5number for calcium 39 are 20 and 39, respectively. How many ntc l ;+(wvhme7/plw5protons 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 39 are 2q bj(hk 070mgl0 and 39, respectively. How many neutrons are in (07qj0bl khg mone 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, neutrons, and electgz : q8jmm2ya zs7t--brons 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-148tn,g0a1 dkye 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 :/sy cpy hjqop,i4m e d)*7u9znumber 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 energy of-)xh zt0op; +v6occ wk $^4He$.

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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 pr.9mw/s2icn:x k r5r eeoton 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 atomic numbe gs fd s2in59s)hai4r *h45ddl nlrx-:r is ihrdl 4:l adsd455xn)rs9ifg-h* s2n 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 nucleons. If it undergoes alpha decay, d4x h5v3aywk50 drd m/ed 50rc2s)vyjwhat are the number of protons and neutrons, respectivel4a5 2dd vhr)s cw35erjy 05/y dxk0dvmy, 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 decayw im6rs+zsaqzd5r)1* s 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 and nitrogen-14 has a mass of )1sz+6 zmrqrsa5wdi* 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 undergoe j,wkqc.t8y s hou108js $b-$ 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 iiqet l;6jh/fnwhd18;s 45 years, how much will be left after 100 yearsi/t;8n6 q1hd he; wflj?

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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 3tr)s) vwsc6j atom will decay this year if its half-life is 247 6jsc3vtr w))s 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 certi3ay5h )coktjg)p0r j0 fied 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 sampleuf oqn-,s 2g+0h wm2ly has a half-life of 10 min. What fraction of the sample is left afty0q +2ogs2mh-w, n ufler 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 radizui:: , 8ipd0hks*cx8z xh:ci oactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an acti:i, ix*izdpucck s8x:zh h0:8vity 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 ha jdyi3e0*sz0zlf-life of 3.0 days has an initial activity of y dzz 00e3sij*$0.24 \; Ci$. 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 from ,dr1 x:8xok3cktt c2 van 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. Thu,d vxtt8x:rk co321 kcs 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 ta*trq60; asp xlt uf;*v x.l3et;ls2lvke $4.0 \times 10^{20} \; atoms$ 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 :eegbd2 ,: ryj$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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