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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 leastb))9ge )yetbi :cuh,s 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 )tn67f .ao9k yts5 qxxis

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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 o w0 fmm7kd56kwf

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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 f5hk754nbsbq,p lbm: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 numbe9d. qs8xog z1;mw wp.er is 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 mq t7(f laa:le+w ps+ .t2cxu)hass by A, and its neutron numbetuq+ w7l+xc :a2last)eh.(p fr by N, which of the following 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 nuc. lg;zd2n gg:kleus, the atomic mass number of the nug2g.:gk;nzdl cleus

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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 atunp8j8ghkze q) d2* ;ff/zkur:je5s5om 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 a0gx87q 4c)wem d2i ewu)ia. fw stable 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 are qaz :m; ylne4/eo5*: 3ry yit oouj.k4refoane;ty:me3yzj5o l:oki ./r4*qu 4 yerred 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 elemeq4) m u-6uvc5huh3 d ko7c3qw:u ovfr;nt 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 defined a+ 0muip hgt-m9m4bw; ps

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the mass.iotrg n h 6(78j)gjx(wum;xggs-u67ll1 snl es of its separate protons and neutrons, the total mass of an7g1 jtiuxs. (gug gl6xl7)wn-8o;rl sh (m6j stable 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 tejxqjeru .mu 10k6 87ro form a stable 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 nucleus is cts fnctt6 .r 3,*unrp/ontributed 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 nu:i(xo4 w-sw vicleon 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 nucleo-.f4mm5co7q 9uhua d1qiv 9ybn

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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 3uz cz;22 56x5 hgrk3a85xftckxrk va 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 nuclear force bei0u(avx,3e7l 2ht7iby8:yw :sx abxn tween adjacent protons in a ney3slt vhi 0x ai 8a2,7n7xuxwby::b(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 penethjw-tus02 +8d 6sw qscrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate-su r*7syjf5qdj f4-z

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratrzv ,lte.o+h2hz* wkyh c/6n/e

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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 knowy6r13gk buj- o2.dp aggcp*y++wzs8 sn 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 j5(kxr, :luq2t1m ainku t5- 0ctsoj)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 bet1f q)-aym1tz 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 a5 j 4h pt-p 18t)v ufvhpxzam6jb,ag52tomic 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 fro-h2 2lpykv p5yb 5z-;ph b h+caldk*mpv78qv 7m an unstable nucleus, the atomic mass number of l-qphk-yp p75mybh7ba*;hvk lc+2v 5 8dpv2 zthe 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 ato29 d rnb ju22a 10cipvxhy179 ilho2vpmic number of tio0a 92x r bj9ui7h2 2plcpv2 1yh1dvnhe 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 931.j(6rny1+11l ak jhcxa5 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 near; . 5hhi+xx mz0acv3lsly 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 an unstablke.5 uaug gv6r;k d81ie 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 mass?otigca ny3e2 +;mp+nv)z9e 0z

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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 addit6s amxx a5vr4e87rb /nwrgt+ ;ion to electric charge, energ r; g rr7/we+astxanmx654vb8y, 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 subt155w8 p *t80a + phi safak(cdp1,x ov2bnkblstance 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.l4+ 6pa tvjhm+..t (ulaktcl-14 is often used. This nucleus emits a single beta particle when it decays. When this happens, the resulting nucleus i6.+.(tu la+l jcp4hmkla t.tvs

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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 charged particles is .h-.8 ty:, h oi5o) zdvadusnha

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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 use8/5o;ozi yig iy0t4-c .wkx lws 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 beensp- nkp 4*+) -ckrjnd1 nv1mzi replaced 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 hasspq6 n gcd i/(1i)on/pxt),kt how many protons?k1/n 6o ()qci/ tgpni xdstp,)

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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 oo u7gvjyvw*7 -tx) :oqf 14 and atomic number 6 has how many neutrogu-7 o oy)*w7qvxvj:tns?

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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 20 and 39, respectively. H 7jz y0-:na,tu4urzinorj0n-a4ituz :7n u z,yw many 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 33y uu 4*q3lj5 wtte6h*7mwiy x9, respectively. How many electroyetw4mu 65*wtqih j3 xl3 uy7*ns 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 number for calcium 39 are 2xd- v 1uul3rdic y9g.9qb7;om0 and 39, respectively. How m m 1l7y9ddro9ic;qxgvu .3u -bany 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 nu6vd4)muxf q3jqum0 .v6bj5 gimber for calcium 39 are 20 and 39, respectively. How many neutrons are in one atom? d i vmb6qmj5)fquj.vgu0364x

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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, neut x)ofhih8 7(e*.gu8irx t6 zpdrons, 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 car q lp-s7muooe - f;z.kk1/o-mhbon-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.ag7ku*3*z, a x ftnv*pzr-l5 nham0z 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 ener:p: vo (rb1oo82m7;vcz n)g*auu mirvgy 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 remove 8z gj-eifm *z /9nes(tone 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 vkd. ( ailm md+-g obw772oocqvd/z1h6qr9)u. Its atomic number is no b7-umk6cvqw /d1. 2r di9malz)vgdhoq(7+oow

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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 6qmy06uxnako s(3y5 jundergoes alpha decay, what are the number of protonsynqsu0j k 5a(636 ymxo and neutrons, 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 beta decay. Hoo)n iy jtis4kx qv7(/-zxp,*s w much energy (inn xq)k ,zst*47x -vo/iipy j(s MeV) 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-wd n.*xr+ftu number 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, how much will be left after 100hh(z hj+3b0v b years?bv3hj zh+ b(h0

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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 thta f)wxz7+bo3is year if its half-life is 247 yearsaxfz)ot+3 7wb?

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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 certifieg24 z epxn:1uid 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. Wh3zae(i 0d;)do hhm8mlat fraction of the sample is left after hod3lm 8;0zi am )(edh40 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 manyrxbtc u9mb4 /gds8 .(q iodine nuclei areq8x.s( m 9tducr g4b/b 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 with a half-life of 3.0 days has an initp cd np.3v3ke0ial activity of .30d3 pcepknv$0.24 \; Ci$. 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 pinpn3og+q pn0/2ez)dqtq8 t* wece 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 qnpp)+0t2nqdo weq/n3gzt*8 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 taam*o)md2wkb s u.7qb 4ke $4.0 \times 10^{20} \; atoms$ 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 cm0gjxed;*2h cgx) + ga $4.5 \; Ci$ 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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