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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 massho fi+)wye3.8wwrqlhzksvh i.f1 t h* -xg046?

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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 l8p-zszd ;yy 5is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consismf-38pmk+h ha ts 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 ns1c5l 0(h c1f2( fx6og3glbtba vy,p dumber 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 by the number o3 ym53umpr)/o3arjya f

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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 atomdtjje m*3e* m*ic mass by A, and its neutron number by N, which of the followmm t e***3dejjing 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 emittn; ia,f 5r f,i8zz)oslxiv.v9.g( xeqwb:(sy ed from an unstable nucleus, the atomic mass number of the nuclrs:q9yavb o ni,vx ie8s);(lx g5fzz .(w ,.ifeus

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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 in9eiawj*ma *;e 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 nucx j nm ;kqi1h,ay./ab+leus 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 nebaurf7 n gud) e1h6y+4utrons are referred )f r6nbg1u7yde4 uah+ 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 haven( j/1e+ xw ,m(vaa5ea+ qfbeh 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 defi r/jc ;hbdi4*w(;kx usned 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 separater:c5nt6 dv qv; protons and neutrons, the total mass of a stable nucleus is alwa;c5vnq6 rv dt:ys

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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 nucleus, enea5yt2n1v7 e oe9tgekoj+ 4 s*qrgy 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(m(n0nmz xuole8)8af 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 pz/m2mbdq*a p9 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 nuc ew/(4dcj 6nu/vxvjfe u03x +aleon

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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 statemhf(09 k bqnkjkvp245 nents 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 fks0r*y)/pyqd: pes9 force, the nuclear force between adjacent protons in a nucleus i eyds )0s/9kp y*:qrpfs

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrateef*)dq1s y)yj

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra2: -tibvg;:0 kbohukb 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 penetrateweqa1nr6rdy 9 ,t7ekz6p;jb *

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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 i df/mmh/go09

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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 know u20 6kvf d3chee/;lse7c5rez n 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 attr4qg,i n48kezg ke5c: iacted 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 +qtevprx;-0 :rjdq.o4i ec- kequal 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 p wihygb(x og1263x ,catomic mass number of the nwoh62y (3,1c gpgxx ibucleus

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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 at g/ixbye (oip6l;qc0 :fjm),tomic number of the nucle)lti 0jc:qiep/fxg (;,bm 6oyus

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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 - Ma3zcf) md 8gi)rc*3j 0rohh j3v) 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 nezf0d/.dy fr z9q *f.jn+ ozn rw)z7:avarly 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 ,3 hqsl-l2qd p*yzc. pfrom 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 mas84byfoaz , u0hs?

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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 ofhx ;(gozf :y5n radioactive decay, what value is conserved in addition to electricf;(nhg5x o: yz 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 a radioactivv5y bqe(:tkq+e 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 used. This nucleus emitsl2 ndsy 3ch:j3l0,o cd a single beta particle when it decays. When this 3 0:jh dl3lccns,y2odhappens, 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 that uses a magnetic field to curve charged particlesgop-b3kkq(r5+kn *v4)jip wn 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 rajqel i5-0 8b a4pcq3hydrogen 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 been0 nf(xf)spkg9 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 b0yry , fpi/7 +wsmc2unumber 6 has how many protons /fs 7,c02uyyrmb+iwp?

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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 num+:23* rwum ykyd.yewgber of 14 and atomic number 6 has how many neutronwyg :3.rkw *uym2+ydes?

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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 nuk,e4l8 nvlm6nbseg z*1ijwfm9l8 4w3mber for calcium 39 are 20 and 39, respectively. How many nucleons are in one atom ,l b 4e31*n6m eg4swl88lfj9wzmvin k?

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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 a v ik6nigzhfw5013et3re 20 and 39, respectively. How many ele3t5gz3v kfwnii6 01hectrons 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 calci2l)qmx2b (kmj um 39 are 20 and 39, respectively. How many protons am)2 jlxb(k2qm re 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 ksk+:hk1lh x*lomfk g qd :58539, respectively. How many neutr+mfq :lk*oxh1k:s5 kkd gl58hons 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, neutrons, a19ky iki:m8j,z2q irpnd 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 20zl e3i2 4:j / bcpejrhgix54nstjm3 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 an16d2cbi,bz xhgao5tc/n .-m p 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 energy oayy- 12l tari(ez*, jaf $^4He$.

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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 frrvym(lp-b-/t t z6w3y 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 atomic *z-a 2/sx g5euqp+ rpynumber is p-spaeu/2 *5 zq+xrgynow

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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 protoncqm9 5nud1.u ql7so/ds and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter nucln57luo.qu dq9/m1 c dseus?

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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 dnodypc3wj(bb3d/ : yxouya- b4;u e3 nzi:, v,ecay. How much energy (in MeV) is released ie:z 3vcob3 3upy anjdn/ (:u-d,ybywxoi b4;,f 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 undk4m4zxie2+ck ergoes $b-$ 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 rn 8 51ubmx0ks5v/,cnr n*ol dleft after 100 years?du ,s5cr *0b/5k8n mvnrolnx1

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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 x kww.*+bwnh s8q(0loatom will decay this year if its half-life is 247 years?nwxsl w (8bqk0w+ oh*.

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was2tj u d-6hsm;k o6r9ug 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 has a half-life of 10 min. Whr+9wpnfw 71hwyh 6.hofu d 6is3 n4ha0at fraction of the sample is left after 40 min?fwwy. 6fnp1hi uo hn6ha 9r43whs 07d+

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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 nu-, :zk r:c8vcgtmz2 yoclei are necessary to produce an activit 2r,z ctc8 ko:zyv-g:my 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-li 3,gb2rs6vk(j-bd8um1 xyqw q fe of 3.0 days has an initial activity of , 8- bmxqu6jsqbg 2vyr1(wdk3$0.24 \; Ci$. 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 piece of awe uy,t55ae5ccm; a1vz m)/yf wooden casket from an ancient burial site was found tae ,wmcy/u z5vc5 aymf;e51)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 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 take4 jbc0n7u+t ee $4.0 \times 10^{20} \; atoms$ 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 l xhl:f9r 7x6h i1 zwcs6)uac+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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