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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 tht6mshjap1 -1urt-:ghe 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 il6x9wn2 ve.n uz*s f3szab -9bs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisthd(w1( /kzm 8j i-duq2ha da.:7jwn gjs 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 determined bb p- +f2ls+nohy 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 determined by the number osjupywq*c 05u e+-+zaf

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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, anxd/ew(; q uc/jd1a;cy/w,mqh gv(ua - d its neutron number by N, which of the following is correct?wu(cdhja (dgqe/;uc/,/1q myva - ;xw

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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 mjw6s kjk412taass number of the w a k14tsjkj62nucleus

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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 awb5i:pa s+a( nn 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 nu:au )5n za tdxdjj19ukyo6qj6ep af:m,d3n ,;cleus 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 ref;tdes o+ h8;vler;8lhod ;t+es vred 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 elemeng d r6:ndem)3bk6p h9zt 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 unitl ftp(8 fahrof+ e9g, f(84xtu is 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 anw y6 d( cs15ybzvu eu-xt/7sq;d neutrons, the total mass of a stable nucleus is alwaysxz6(/yssue 1db57wy v-ct qu;

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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 n4iw rkpod+ 2gh.-bwg0 ucleus, 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 nucle7a:7o ;o6iqxdet9e y 2kdet:j4spe9o xcp w62us 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 nuclu k)c 8dnecqr l88 :;um(fbl.ceon 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 nu-qvy 9t:mpf4m (r1uo ocleon

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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 forcwq1 6.hpvir, ne 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 for7ei5ou ;5me-0auccca ce, the nuclear force between adjacent protons in a nucleus iuui;a0c5 m 57-a oecces

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrate 7o psglhk62r(

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratve-v+tt) +pabsh80y l+i,iu v e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratri*lqwu0t c 18e

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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 5ed6y vdd56:ulx5 fopv* hh1k 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 okbki n( 8v8 f0f5u.wrknown 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 wi. 8zrsf/y3a2zt au1h yll 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 atomic mass eqwv8u8vit(uxabsg//( ual 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 fro:9h7 ji. 3 qf 4 iy(m1pag ltamk,pc5*p0ywtenm an unstable nucleus, the atomic mass number op31le *h9y:gy7 n a.wm j4itk q p05cpti,maf(f 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 from an unstable nucleus, the atoaiqj0. b7 ,htm3bh)i jmic number of h7t.i)jha3jbi ,bqm0 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 - M+c:t:ivtvih,n x5+nm46es-qg 6 wkg yY - 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 ay chs0kt 9evn yxtyk. 1)88e6h 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/d q)s ohe/q2 eb)r. )8r)m8pe4ntrha dz 3cxe 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 moxo7p1exb;kx 91b9 uytst 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 value is conw3x rl9x+3s ie:i0( verii j.p )o1altserved in addition to electric charge, enei9i0s1+( lr)v:ai.33rxjoee ptxw lirgy, 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 rawwyib//ufhb6l(b,0 h dioactive 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 emi zmx3 *6ccx*x /wg)b t2a7ynwits a single beta particle when it decays. When this happens, the r*7tcy* i xz3bm 26nxxwwca )g/esulting 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 (rv9zk3 dk(cncurve 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 is a 1z9qlx;m(gb x

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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 n -3sc:k*ss7lv r *npo((ykgo 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 havk q34p/zf r3qs how many protonqz fqv33rp4 /ks?

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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 nu fu 7-bj ao6)-ias/de. 1ftdtember of 14 and atomic number 6 has how many neutroud fet s 7b. a-a/6t1df)ij-oens?

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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 forr. ze2mr6/b9*wy e+gwsq0a4*wfndv m calcium 39 are 20 and 39, respectively. How many nucleons are in one atom?*mq d s02e6 * gyfwrrzv. /9wme+4wnab

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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, respectivelyj0kjhr) j6yaygh. /s+ . How many ely0 y .k6r+hhjjs a)jg/ectrons 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 m,yyme0 rq, x8jass number for calcium 39 are 20 and 39, respectively. How many pro,mey08xqjy ,rtons 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 calcnnx*-w pod pa8v8t5 e,rbj 0e4o(bx9 iium 39 are 20 and 39, respectively. How many neutrons awinp to(*j er9-5pb8 4 xonb8vd ea,0xre 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 protons, neuy 1bgz-a:5r/zd b3a9f x0hywstrons, 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 injl -i-m cw8n:g 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 15 hu b4.et c70u0ocjht8has 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 bindinkl8klt/h wyb8;mk42v u*+pp9 sb n2yng 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 tq3(chf6qe 2y h,cl u0so remove 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 q -pzf d+d1kp6alpha decay. Its atomic number isdf+6-ppzkq d 1 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. ln te4cd yd:vom 5/46l If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in t6v:5eot ld44dml/cy nhe 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 decay. How m b2nhko/k rv60+mo2kquch energy (in MeV) is released if carbon-14 has a mass of 14.003242hkr/k0q ov2 b6kon+m2 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 6 undergoepenn2uk7m v,7s $b-$ 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 cdd)0j v+h wvp )t lb6t)ip:.dleft after 100 yearlc pd .+j0hw)ti:)v6tdp v)dbs?

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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 ay vrtz,wx 8igh,l - k-60a1trntom will decay this year if its half-life is 247 y ,it,1yv- xgwh -68nklzta 0rrears?

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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 asth7rs t.pe he-un/l *vc+-g-t $10 \; \mu Ci$ 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-k:w 4,y l4rjf0,q w0 ;pifxbt nabap)6life of 10 min. What fraction of the sample is left after 0f:k,4l4jbyq0riba apww) nf p6x;,t40 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.w7n* opi432vr7wqcz i n5e1or0 days. How many iodine nuclei are necessary to produce an activit z1 iv*e5342 o7prn7nwrcqiowy 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 of 3.0 days has an initiae.av2i;b3q -d:vl qnul activity of aui env-v q.3d l:;qb2$0.24 \; Ci$. 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 measu :bu(d:ynw)g ured in a piece of a wooden casket from an ancient burial site was found to )yg w(u:unb: dproduce 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 tak3ks1 5xgsa kn.tx*59 y jaec8je $4.0 \times 10^{20} \; atoms$ 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 aoit87pq n*gp- $4.5 \; Ci$ 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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