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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 least mass4wbl c/a:-n.kqdd4pv wdlum h 3q8, v(?

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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 is4j-v t+mlomi(-pk 1g e

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cmhv3ij9em6gcy (h6pzbq p ,ug(,; bn*/vfj7xonsists 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 de0 g)a-zq0; )oxggcmvngv ;js5termined 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 i* yla g*t/wiqid 6.)sps 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 an :*yj5,4fn z guw4etgtomic mass by A, and its neutron number by N, which of the f y5,fz:ejwu 4 n4tngg*ollowing 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 numberq; vta (5o/w9wbg7t)r3nzxydio)b1 a of the nuclew n(a1vtb z ot7y/ xdo9)b3i)5;wqg raus

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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 at1q f7+m 0xszfhom 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 bd7pfs)ooq6p ; ecause 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 wv6.boro1oe1/x ue 4y wi3j/ym ith different numbers of neutrons are referromwjboruo1y4/6/ .x3e1vye i ed 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 element have nuclea50nhbaa;k 9xrib 69gt:iuhm,cn-;h5p (q o n i 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 n zh +):ngf ttlj 1s*rx0r/t+jdefined 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 neutrons imxffs2.o+oz(ts,rsm 0;4r i , the total mass of a stable nucleussiifrsr;z o2mm0s(f+4., xt o 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 f9 nv(jv6sx1 6k(vlu1+ug y rfqorm 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 nq.s w* dt nu2da52h(ytucleus 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 ppkpc8 11gxrc; er 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 nuclex fl;7j-fva7 con

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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 cong jz)zjp6y 19fcerning 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 nuc- 0wg7s*eej96uln o ehlear force between adjacent protons in a nuw6e uheg9le7-o0 *nsjcleus 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 penetraty*db.morq: oy(/cv jue,69i;xpr an8 i7o+wre

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrateez a.x*bkqm*a( * kg0k*oe .ee

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetramq7;,jymdf x( nrpsi2/c. c y0te

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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 k*mvoqb,: wo .vnown 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 k,t7voo. coh0known 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 attc,rre 71jyoq 5racted 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 2rcejz( y3j(gndc e b 6+e:9lhatomic 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 anocqiha+2d 8wv7yk , ez;wt 62q unstable nucleus, the atomic mass number o+oa2qkq2t cv6 ze7hiwd, wy 8;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 atlbd.-4h ,6 64* ridczqyl. 4acgsoqx somic number ofcq*rl-y.c 6a6d4qx dg4,b o.sshlzi4 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 931.5 rep z,cn m m;/nigi;.igpauewm6uk/7tzs8( .1q nresents

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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 nearlde msgd( ,7u6dy 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 nucleudp:n/ 1jk3u*ismubf kv.73he s,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has th tf tc6xo8eyi17mj7 n3e 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 o ewm5(b7fjto/ a+-uv :waz t0jf radioactive decay, what value is conserved in addition to electric charge, energyjt0zoa( /f j+7v :bmwte u-w5a, 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 substancrpwc (6 1cda;flwc)1 qe 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 emits a singl ilo6o.e1.p sqe beta particle when it decays. When this happens, the resulting n.isple.o 6q1o ucleus 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 curve charged particles is :*yy:3hn vu k8 5ua/chtalv8 ea

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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 th(m80do*ugyn : 7xzk)nc8jwvyat 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 b9*(u seokeb e;een 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 jvg)tq::tx m7n)o i9m number 6 has how many protonqvmm) jog xti9n)::t7 s?

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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 atomi e3 ru-ip14t tc:akxx2c number 6 has how many neutronkxu: 2 3pe4t1a-ri txcs?

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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 qqhh: n23uh elfgv6ywn( w7/; x0rmn+number for calcium 39 are 20 and 39, respectively. How many nucleons are in onm+g ln0exq6 2fn/y urq;3h(hh: v7wnwe 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, re5 z1 kjz/xlh-vspectively. Ho/1xhl5vzjz - kw many electrons 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 foru/50gqr8(lr3 j mv- dos sypdv6;dp+q calcium 39 are 20 and 39, respectively. How many protons are in one 3qm8l ygu;rd -srj(p5p 60v/svo+ddqatom?

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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 +ya8 cj*n1a1v b s:isuand 39, respectively. How many n ci:*vby+j asu81sn1aeutrons 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, neu -f 3x2wcb9npftrons, 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-14 nucleus? f 6w*mcq tfz18km2nv8

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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 atomi,zcy v7n g)-u/g qmxd*c number 15 has 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)hv(p -+fsl7 l9dqafy*iy8 kggy 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 d5+taocozf d z:b,:/a to 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 alpha dt)gepsmg4z 1 */ jy1 tyqa3ba6ecay. Its atomic number is nz/6tpstgq4ma g *ajy)1yb1e3ow

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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,kjz(xw/b : lf +rw/ls. If it undergoes alpha decay, what are the number of protons and neutrons, respectively,b(/ rklwj +,zxs lwf/: 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 u 73u 29bo:z0tr: h/h sgmzjgdnucleus by beta decay. How much energy (in MeV) isz70m/d rgh :9ohsutju zgb3 :2 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+dr9f v 04vvht 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 100 yearuslb2d(x2: s wjzc+ 8wn.ome5vjq1j) s?5):8e1n jmwlbjo+zc.s qjxsw d22u v(

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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 its0uh y+li.l ::mh8xymq half-life is 247 ye:yx8 .i+hmlul h:0 myqars?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wa0t ifw61l.j faq6v2pcs certified 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 ha7q it7s c czd5nqz,le7ik;3)hs a half-life of 10 min. What fraction of the sample is lefciiq h)dc;ne7t l3z q5,7zk7st 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 iodine-137 is 8.0 days. How many iodine 67dj33yv4 gg6p; f zyf.kzyuh nuclei are necessary to produce an activity of fd uy zpgh6gv6j3f3 y ky.47;z$1.0 \; \mu Ci$?

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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 initial ac,w fxh3p 2lio8tivity of 2 o,hxw8lp3if$0.24 \; Ci$. 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 measuynhcp q r./,l.red in a piece of a wooden casket from an ancient burial site was found to .c rlnp,/q.hy 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 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 takezorm8*)ul ujkpi t;/( $4.0 \times 10^{20} \; atoms$ 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 -p+t5 t-g6k px) bywcra $4.5 \; Ci$ 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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