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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: 匿名未登录  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 pp,l:ye2 qm)3g ohp 6elarticles 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 a67d xklk-ls;u-;e p bev2e;cis

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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+*. yla:cbhnqsts 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 wnw8 ./chn+ suby 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 byvnit3* )mv ui+ 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 if i2 n77;dqxzv* tc1 cogu))zhs given by Z, its atomic mass by A, and its neutron number by N, which of the following is correct*1z)toh ;cz)gx7uq v nfdc27i?

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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 nuy76( ne2td b gsfby)-umber of the nucleu)7( gn d6bsf-yb e2tuys

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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 6,nn5h.b w9ku:ajjr r an 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 nucn cjyirpje hrl-p( 7ncs *gg1,73r 12nleus 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 is2z)kgan56 d of neutrons are refer5 sk6gz2nad )ired 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 elemen )nq;mwn* g0qat 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 def 83ig1zeos f2tined 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 neutronsnsey-ej ; ,-ni, the total mass of a stable nucleus isy ne,-; jnie-s 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 nucleuiod 0 ;o*v2xzas, 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 nucgtns(cd v7a:. ,w9deqleus 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 perc,w zulf9 q668; qsqsp nucleon 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 nucljvml;;1+gt ad : cu1yg/bxx05zsg;d keon

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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 forcemn ,rfk zvabrp(x x*7l7ri*x/+ )oj2p 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 nuclear force betweex x6910br(ubk( doaq on adjacent protons in a nx69(ubo01r dxqoba( k ucleus 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 penetr4m+3/ gyi unptate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetralm w3j.:lc 78 lb* tybhjn.r:zte

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrge:dk7 o,doz8ate

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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 as 47d ww.ponqqr8i-uu 9

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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 knc )r 3ss l4zwyvg2c5vsw.n -3bown 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 tsnpzj.lwl2o hyni y 9u5m126 *o 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 agm10juvkh z)0tomic 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 az lday4m /z-s(tomic mass number of the nu-4a z/ zdmsyl(cleus

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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 unsta (xfrr*a6 bvhz23e3 ctble nucleus, the atomic number of the nucleue3*r fravct(bx23h z6s

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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 5hprpre1 5kq3 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 ;e(2osk4y7-jxoj1m gdz w g/o2u be9d is most 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 emitted from an6tf w/d r2uuq- 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 maslk .)j0zr3 rsviv;2,org5dvg exu31 cs?

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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 conserved in mfn ln*e(+6 a 4vfvy0yaddition to electric charge, energy, afa6 0ymenvlv n*fy+4(nd 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 substance am wekgwpqe9jrrq879 nls:h / ;j5 f32ss 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 emits a single bed sesy*zt,lpo1z 8z p, 8b.(8flum7cdta particle when it zp .futd81*z8po8l(,l z, css yeb7dm decays. When 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 ty+t +( 9jupqwrhat 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 hydrogmv 1dq6tbq; .fmts29uen 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 re iog 2 4b*lw0d.b(mrsdplaced 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 :e5 mybv*asj, 14 and atomic number 6 has how many protonsev abm:y5,s j*?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomis;7b5- qp j0hx7 u:zx0a:q bs8quvsg tc mass number of 14 and atomic number 6 has how many neutrons?shaq:vgbux78 sq zx75t0s:pj0 q;bu-

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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 m8 qa uw+/vrw g*hosvce ;(d4*number for calcium 39 are 20 and 39, respectively. How ma4o+c* rwg/mda(ehwuqv v8* s;ny 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 for calcium 39 are 20 and 39, respectively. lsy8:evc6;dp f ue8pj1cs1j--j. zo oHow many electrons arcsc16. fo8p zj; ejldy:-uop-sj v 1e8e 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 number for calcium 39 are 20 andjatfjx6/6n 6y 7ua .uj 39, respectively. How many pro.y7u ujf6n ajx6/ajt6tons 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 3ex+ib5k uyg2i- /qtf49, respectively. How many neutr-fbqx +e5i u/g2it4ykons 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 protons, ne(oip ,j d( oyj-;0b:x-gkyg rjutrons, 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-14xq w*xrpgguoc f2(33 b;ap78n 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 maseeuq0f686 kxwzb,9nes 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 onn 0xwt3dh qpob (y; d3sxm727f $^4He$.

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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 pro.1b,jfkjkckyjm r4sal46x 0m 56;u spton 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 thrr1 r/a hf;x5kpough alpha decay. Its atomic number is n ;15/hrrfx akpow

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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 nb70 nz8 rhqlx4ucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daug4x rq 7nz0blh8hter 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 l pnk9217a2re r rd0- vm-c*pievu6vknitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a marp*0 -r-29vnvpruce 7mk 61k2 a levdiss 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 6 under*ebg x85d.v n0uia4 eegoes $b-$ 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, howjvyiig i96 m20yi/.pd0t.puq much will be left after 100 yearj.g/06uypti qp9. idii0myv2 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 h weazd)k- :v;calf-life is 247 e a-w;z:c)kd vyears?

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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 at4s2kbv l)y;6f x) h od3f6evz 2-ooker $10 \; \mu Ci$ 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 )oav;l;hl0fq2 eu,rf has a half-life of 10 min. What fraction of the sample is ; lof;,v2fq) eral0h uleft 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 iwyd9 .w3etp 6aodine-137 is 8.0 days. How many iodine nuclei are necessary to produce ep.6 ww39adtyan 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 r:v q-b/ gadp6with a half-life of 3.0 days has an initial activity of /qb dv- g6p:ra$0.24 \; Ci$. 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 vdp+vf3et7yc6me1 xl g 4e dklik6/9.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. Thuspti3yk4 e v71xdg 6em6cldkv9fe l./+ 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 tan rczc6kj;vhm9v mlz6w6k 5 05ke $4.0 \times 10^{20} \; atoms$ 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 tak- lfmyr4y.wrta:hl ): e 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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