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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 particf-vpb )1n)t5bpl2rt+fy-ef u ef5gh.les 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 ilmia.1 ):xvmgzzqo7i 3b g4 :zs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisc d .g s/ql4.s26ey* tuv:tinoj6cc 7ots 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 by the numbepv 7hj .fvhsa/rffbaapqb* m3 +en /:;b/z,l2 r 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 determine;xdpz -m;ee7 fd 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 ator,ab mu uvz-6veg9n5jx 4;ymv7j5 d3b mic mass by A, and its neutron number by N, which of the folbnu6vv9r7,5yj3xed 4 z;bm5uj v mag -lowing 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 atomic mass number of try;sgc 3o/sutgkt 7:6he nucle cr;oku:gtgs73 tsy 6/us

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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 anez c2(ox j+j/w 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 becaus3b 99(e6y vgkokwfsx:e 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 differen)mv,r2 uup0etcz t:/s us .qi6t numbers of neutrons are referred to v:0zs )2 ./qstcp6 ,tumrui ueas

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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 nucs)+mh pu;i34jhop i ;qlei 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 kqo)dv622laj ww1 )o qdefined 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 c+,lh smetcjh1.jl( 5 neutrons, the total mass of a s +clt,mhce(l1hsjj 5.table 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 stabs 3-eyhgbhg g6 9l(1neel+v4sle nucleus, 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 8+tlzv .soa*3t4lgv t x(yu1 inucleus 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 nucf,dpu-der/,fqk 6w q1 leon 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 z(*j wux9petc*nn;u+cleon

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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 9h+ q gma1pltm*m prk1ks7m)/ 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, thbzx5fz.* lc*w e nuclear force between adjacent protons zzw* clbx.5f* in 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 penetl :pxp2 bghtzv zn+(1.7e1hfl rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetraqs9,6,pfw8ibp 6 n3s; mq zeymwue 9b)te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrw/h suq)zf.u;eyb 3 ,wate

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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 kno3t- m:havr;9 wlpa:ra wn 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 51 8l h3b6tiivnv-qhk known 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 attj t m m:ywzqtgorl2zm 0748,p8racted 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 havecote5*q l(3 bdmpjid*v /.y;p an 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 emittvv )-,cq9s 1d 9 jheqpxb4lqp*ed from an unstable nucleus, the atomic mass number of the nucq qdxj l v*s1be-p,h94 vq9)pcleus

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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 nwe(/xgzzzfe*i t z +,5umber of tef *zt/wzi(5,z gezx+he 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)yozyf5, :q o;c ,k6goa9aqu*f 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 ash8h- / mmakc0gaq*5 olor/yk 9pxg) b) 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 emiznuc6y*oqnr;h n:23 zvh6d0 btted 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 most mas)*tsv(,sp rfqtit 5n1s?

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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 ofeh;o,;orbhd 5ssey69/ppf h / radioactive decay, what value is conserved in addition to electbp9 5h ;hpeds,6e;ro/h/o syf ric 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((p5y-fze 8g s:q9n3dv vhgdw 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 use-lh.yd,y q7wj d. This nucleus emits a single beta particle when it decays. When this happens, the dw,j7.h lq-yyresulting 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 detectorw 0g)yonghubz ( /fdi0:v3-9qka h;a l that uses a magnetic 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 is a wu4f7 vo6gkby6* o7hxv,u f8s

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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 replv 4,(zo+ q,k)jljg g9wi;i ylcaced 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 ma 1zeyg .egrf xq 41p31(h6*amzd3 kvkfny protons?f6*ze(3gdx.hf k e1z1v43m gq 1yrapk

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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 numbel8-f 5n.3o szmf (civ9wkn9gz r of 14 and atomic number 6 has how many neutronswo z 5vflszg-9(mi 8n9 nc3.kf?

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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 2f evv ed.8c7q90 and 39, respectively. How mc7ve vfq.9ed 8any nucleons are 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 forqpx r+/m5um/j calcium 39 are 20 and 39, respectively. How many electrons are in qmmj5+pr//u xone 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 number for calciuymmrgcyskg: ,+v) +5a m 39 are 20 and 39, respectively. How 5yrs+:+, yga v c)mgmkmany 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 calci .nwwjyk9 b gqb00k+n8ew :;py h)f;goum 39 are 20 and 39, respectively. How many neutrons ar0b0fnnyjgh)g+.pw eok y8 :;kb;ww q9e 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 protru ,,7g 9ualqc3u bn3xons, 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 inhkund18 ,vdvm6b303 )h pypfn 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 has an isotope of mass numqyy/b:fppp2h rqu)* 7 ber 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 )gih5uhat)wc 5qp(* d $^4He$.

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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 rem07 wpb4 cok*t6 mf,wvvove 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 throu:* rztx1h l9j dcxdx5fh.fy;;gh alpha decay. Its atomic number is nowd f;*z tc9ldy;jh1r.xf :5xx h

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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 24zbg5 i1xwo4:p 9 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons,ibo wpz g:x415 respectively, 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 decays to a nitrogen-14 nucleus by bf e7a;h+d bdj4eta decay. How much energy (in MeV j4f dahed+;7b) 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 n49 6wg2 diksmgt2t .mxumber 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,2uxz uz6sx-* x how much will be left after 100 yearsxx6x 2suz* -zu?

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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 a z;mkn6g4 7cbbe6ev c u5h2o5wlczx9a 8/ 9ezmn atom will decay this year if its half-life is 247 ycz w;zc5nobee9a/2evxl 4b g57cmz um kh69 68ears?

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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 certi1.rb6/0 mcdb 6gfh jyified 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. What)jp0j1o ,waq i fraction of the sample is le0jwjoqa1,) ip ft 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 rad:bz /zfj o.qxkgrt 942m.gt3e ioactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activ/t t jx3rkf9zbegg4z om:.q 2.ity 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 da.gk:ah8y yjphr d*d9/ys has an initial activity of p.jy ydga:* dr98h kh/$0.24 \; Ci$. 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 dzh jk-eohi(o347 cq/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 of carbon-14, a beta emitter, is 5730 years. Thus we would estimate th/73ze(c diojoq-hk4 he 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 x ri-qn)c38nzz)l +zvke $4.0 \times 10^{20} \; atoms$ 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 )hy5w zy0ke /,y;odyf$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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