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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 the least mass?*eyb1l(i 45vdqt3fw8/odyr7 pxyxg +

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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 stuw sd. rj3id8c0f 496cn ayo(tem*4 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 consists of(/ip z603carff hujj( ao5x:z

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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 determined by the number2euq;udjkp2 8x;0z0dsy i 4vk 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 v8as09gt, gq pa-r:vc 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 by A, and its neu (:o4w*io euec9bk cljauy984tron number by N, which of the followin(o9u4w cb9ykci*u j: ael eo84g 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 nucmt ;sll 1z92r.: tjbe4czad84bdw + sk ori,5lleus, the atomic mass number of the nucleusist4am:rslrte.ddw z2 c ;9lj+b,k418 ol5zb

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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 atk6 xsg m5; ltvvu8;tt 24nw*)lfudtrh a,nt0 5om 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/wueun 92cxp 3ble 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 aretj v19 qj ll hpnj:tgk,+)/gb6 referred to at/:g9+vnhtj1j ,lk 6j)qglbp s

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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 wi7qbjoe c3a7u0wo9 qqd)n tm/)th

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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 a00j vzofxz af1 h067tbs

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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 brc bp /j1:8(cgzh: p3uway/rzkms n ),,fau( mass of a stable nucleus is alwaycs zzbw ,((u/yr:n 8,cg3r a:mfa/pp1kj)hub s

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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, enead, h7x 7v/e ox:xico+rgy 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 j*dn cqqv3r(* 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 nuclj2 ktm rz8)brx+;wh3)vhob9h i-h +rqeon 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 peotlluusq--5vno5*8) frtp2vk pw b53r 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 followingp+: * 8ysd6wukl;an; n5 ;p2jbzunmn r 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 nucx)h qu( /kjmq8lear force between adjacent protons in a nuclq)h/qk(xmju8 eus 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 penetra v1db h/-d+kmate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr s bb5,buce,g9ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetvdg4qus 2wo110dfs wbb9c(prtdp: 4 ,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 known al49hxyrng4 t8 s

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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 knowurg.,p--kv w wn 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 bej)j(yk4k+3zmwc7 j es 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 anzp 190+wufp d.hztw 2j atomic 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 un a5 c(itacyj1c7c1cgi 4.o(yb.qvm0j stable nucleus, the atomic mass number of the nu i(4oc1iatbc .yc.0jy 7cvam1gj cq( 5cleus

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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 unstable nucleus, the atomic number ofs3 0 8h id9tz2ad9ywwn rqz)g)3dz9 2 wh8 0g)rt sn)iwaydz9q the 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 9 sri a:ynvsxr5g:. ijj q:* r,k2.jl6t31.5 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 mo *bepw213ettuet7zq* st nearly 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 emittet9o+)zn.z j ezd 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 thmyv 8qn j.r;19e cm+b vl5vsc6e most 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 valee+9cdy;d61nmjk u 3h0)nc nxhxux t1 )wu/ a)ue is conserved in addition to electric charge, energy, and momen)t1 n u/x h))ucx9u c;d3j+nxa6hd1e 0myekw ntum?

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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 subdn:nh) 7lzwn09 ashw- stance 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 ng:2 qw7+km uyuh+zd.8n6h hph 0(elw pucleus emits a single beta particle when it decays. When this happens, the resulting nuy++p:.ughl wehmhwh7 2p0qzuk d6(8n cleus 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 charge,-p m 1 27q6) m)sq iokvm,ru0w ftk(*ohyuinod 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 thmnyakwid /-64sn/ jbi1b o5j4at 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 r;kbwf+4 e xx)feplaced 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 atomic number 6 has how maoukhl7(;f ggm1uh)x. :-r nijwe(rk .ny proton wxrn:gk- hr. iu j1u()h(me7.og;lfks?

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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 howegks os0py2y7 i.ia90 many neutron7y.a0iy s0ke2iog s9p s?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and2rbx dp m9oezv6;3 z,a-dut/ g mass number for calcium 39 are 20 and 39, respectively. How many nucleons are in one atuv-/mpg2zedba 3 zt; ,69xdo rom?

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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 calmlp52a8f2 p7yf y-fy3rqh+gw cium 39 are 20 and 39, respectively. Hy8 phlm7 + 2qyaf wgr3y2ff-5pow 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 numblx11;j 1zpdz7 pcs8dmer for calcium 39 are 20 and 39, respectively. How x 1p d;dm71ljp1 zczs8many 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 number for calcium 39 are 20 and 39, respe0vf kepn2 )mdml.3k1j nv) d5kctively. How many neu )v l dk25nkf)em.0v mknjp13dtrons 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 pro waw6cv5j)8ivqw m 66rtons, 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 ig(uof5 y6zu i:f h)df +zv+e2wn 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 atomic number 15x.,hofs 2 -4*cktiogk 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 g24h6tpio 2ku-lm r.d energy 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 remo u1o 21ms-svrw jt6ge8ve 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 decay. Its atomic nww kw26b+1co 3asuv3c umber is cw3aso6 w 12buvw3c+k 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, what are fck 0 by (gq oepi1;1qh;e vpz(5x1dv1the number of protons and neutrons, respectively, in the daughtb hpyp(vkvo (qe10 icqxg;e1d1 ;15zfer 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 decay. How much ener1tq*lqpsmlm f5 qi9:+ gy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mass o5s1lqqf q:* +m9tli pmf 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 undergo0g10 sgub0,dsm6 oiqy es $b-$ 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 w r-12 c-h rx*i j+ar0f3konvwvill be left after 100 yearsj+fr0n-v a c*i1ro23kw vh-xr?

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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 thatwznh(+rjrt,0 7e*ar ouz y7/j an atom will decay this year if its half-life is 247 yeart auz7h*o z,rjrjy 0(rwe +7n/s?

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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 cerha6rnhyjs a.(kz p4p90j*. ze7 y6a mctified 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 sample4 ydfyb m8 yx;3tjo:l;k*hzt3 has a half-life of 10 min. What fraction of the sample is left 3 dy3;;bxzyjtoltf8m: k4yh * 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-137 is 8.0 days. How many iodine nuk4pq: 8e gi1wpclei areieqpg :w1 84pk necessary 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 withetqw 72 l*a9be a half-life of 3.0 days has an initial activity of eqalwe9b t27*$0.24 \; Ci$. 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 .mjw /*3a*i o j)az)lzzrtv5 lpiece of a wooden casket from an ancient burial site was found to 5m t 3zvoia*)jlwrzz al.j/*)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 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 taks/jmb- hi 8m edm--3s7 g4c4 z6ajmcege $4.0 \times 10^{20} \; atoms$ 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 ok1w2 2n;fat;l5 ehcg $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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