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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 th)* lhtcm +r-twe 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 isflb -m ,np o23454 lw5ymj ;ur4w awlnl3m*tyk

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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.klgeehf73v2r 8t1eh m h iya.q0z0)nsts 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 numbksd kw.4jn 1l- s,hp,per is determined by 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 (r3: rlsil;pg q,3gx; bwu c3vby 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, ip)irn eb ,2xtrj npee-g mlpbk3):4)8ts atomic mass by A, and its neutron number by N, which of thn:r2p gp r)tkb-jl 4 eb3,))ee8npixme 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 emitys),5aj gsi u,ted from an unstable nucleus, the atomic mass number of the nucle uasg5jsi) ,y,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(hh tca6:jv2 rh-kdq 7 in 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 nuz vn ,.y2gs5 ;;sevhbub (gm0i:v)giwcleus 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 oo+(/u9tr zlfrf neutrons are referred t+o/(urrzlf9t o 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 element have nucleqwkw./eers,x93o7bl+ ebx wg y3 5h.bi 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 defin *w2z tfnbd8*ovg 3my;z;jr6ged 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 protb(2oufe:j*1bfd,; g0 vthug hons and neutrons, the total mass of a stable nuc(,o12g fd:ve ghfj b;h u*b0utleus 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 stable nu,h:)w a uz6pxucleus, 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 oftsz5ucn7*fl m6qdk +x+nw /x2 a nucleus 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 nu: )zoy2w gev32l n gxm61s7jr5pgj,nhcleon 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 4xe o,topm6.z.co 4hwcleon

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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 statemeoz8kimjf1 3nue3f. :v ypoz.8nts 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 nuclear force betwe+al-3yv6 qbpqonafv82 mdtnh h7q) /6 en adjacent protons iqa/v3 6t nhlb 2 dh+qmpq)8-af7ovy6nn 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 penetratac+8xzjiq u,b9z6 kbk 0l6iq6e

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate2rc pa tin+o4+

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet ria:fs) nxj:7sa 73glrate

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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 ask: z3x5onram kf zdoqn:8+ 5+lwvap3+

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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 knowqd x4o(j)a7z, -)w7;jdzp0 rbam aso an 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 attrac*r gj21in,um ow;ior-ted 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 equal ekte2j 4w xl (:wb1net5b9ax(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 unstablth08ksqfxx h*zxh2 :8e nucleus, the atomic mass number of the nucleusxk*xq0 fh2:8 xth8zh s

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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 emitt5wd -py) -wh4;bve;9pamhi0 ko uz*i ied from an unstable nucleus, the atomic number of;i zw-y k iuap5 w)ib4oh*v -9;eh0mpd 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 9q7j: mku glyk 3,fe7c;(s 1hjv31.5 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 +yw0b c; z1uun:ewgtxj.:g0est 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 an unstable gkx )gx +.zn3mrtn6s4nucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has theayig* 9 s/ oxa 6v/v/(znqkl 0pw)u4(zmw8npb 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 valugy/g-r, j nffi 0p9g(ne is conserved in addition to electric charge, energy, and mf/girfyp,9 g-0 g(njnomentum?

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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 as ibq w e qj-(0y-ruo17 d+0zz. ur3ru enxet.u+rt 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 iso.rzc09q (68xau xdhx often used. This nucleus emits a single beta particle when it decays. When this happens, the resulting nuclu0cz.d x69xrh(q o xa8eus 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 (wlahzz t4 1(1:utes mmagnetic 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 c4*mojmvgi, d4b6qac9aufli,r6-- c that 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 bee u)ob a/*x1 frsy/q,wjn 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 ato8q3p cjmq7qzy xx2v 7)mic number 6 has how many protonq77v) xqz xm2q3 8jpcys?

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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 how many neutrb ul0( 7k55feoxf ggm:onsf75bk g (um5eglx0o:f?

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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, respectivelwfyi;wcfs 2: hm1;ss t6pf45py. How many nucleons are infp;cm1t2pwys; h 6:f ifss54w 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 )pp)j kc j0u/cand 39, respectively. How many electrons are in one atop jjpc0c) /uk)m?

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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 calcic( l* 0ob1m 5xk2udfmjum 39 are 20 and 39, respectively. How many protons are incd*5 xjo0(mkm1bf lu 2 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, respect:oz/q 1:er i8d b9xldfively. How many n8b1fez:dr/q i: oxld 9eutrons 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 prog of/w luc)gm8br-nu,i/hs: -(q*vgi/u ,clytons, 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 in tt b; ak(l*re6hxh od/+he 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 m0l te,3uj eu5u6q:qanass 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 enw7gy.nv kj 7t:ergy 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 one proton frfdi.o5 tnk bo 2iell:7bmnq1+qwm+ 6- om $^9Be$?

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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 atomicfq 6q9w21p (exjg1kzl number is nj(z 116qgek xp2q lwf9ow

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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 undergoe8/a a36q 6:gc ytafifps alpha decay, what are the number of protons and neutrons, respectively, in the daug:ca/agp6q y3t 68 afifhter 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 ener:yr8. mk r4wfagy (in MeV) is released mwf:k. ry a84rif 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 number 6 undergo:jdbf1sze8k3 1 i dr1si e1l2ues $b-$ 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 materia:m w1j wroi.1bl is 45 years, how much will be left after 100 years?wjo 1miw1 .b:r

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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 half-lif9-h:wsh:v; / hna z,twkv n6fee is 247 yea9nhf6h esnhz,v t:ka-;ww/ :v rs?

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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.a:rj df :0i*xzef br0 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 fraction of l 1e8a+b/ea mathe sample is left aftelbea +8/ma1e ar 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. rk7-hu elny c35- -zmglu m(d:How many iodine nuclei are nz- hly3ul-ng( dm:ru-me7 c5kecessary 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 wit2itmtak lf 79oqz) 40nh a half-life of 3.0 days has an initial activity of tzlm)o2 i4fak t7 q0n9$0.24 \; Ci$. 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 meas -qp8jv5x d b7scs:ik)tld3+gt:3 esvured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas thepdej+t7v5c3s il k:)b-gtd:3sv sx8q 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 takxb+ /d*p 6l lxao1h;mse $4.0 \times 10^{20} \; atoms$ 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 *)w05m/h fmyzf w/ xql$4.5 \; Ci$ 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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