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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 particles has the least.vo/wzzi3 0j -lonwd ; 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 n0/jli hi*2-bq *mo mais

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus 11css vcezcl. h x9x8,consists 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 dete/kl7.im0z in d5mz: xurmined 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 by the nui+-1 tuh8nr gs(ibgi *mber 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 mass by A, and ltq-q.x-+cbwof (xq +its neutron number by N, which of the follbc -q-+of+x.wlt(xqqowing 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 unstab..goyjf*)ak 8n6awpy le nucleus, the atomic mass number of the yo jpg8*f . )aawk6yn.nucleus

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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 atom k6,9zmecou i;ak-2 v 2 tab9qpis

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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 wnsjqui i/ /(.z:gi v9stable 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 numvqt*f 6k4wzvc* c ad/7bers of neutrons are referredd*wqk*v7 6c/ zvatc4f 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 nuclei k 6/mn; bbsn:jwith

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit0bfuj5e)fjgi6 8 /y sl is defined 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 3lj 9gg/3q tvoits separate protons and neutrons, the total mass of a stablt3g 3ovl/ jq9ge 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 to form a stable nucl; xgczosfb7+p-j+nt (eus, 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 c 1ih5mm skalbtvw/ s y3*pw-k.:8m- gcontributed 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 nucleon7sjqfzwif 69m8q50rh 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 pe9i8g k a c /d1rq4fihhk3ho 2r:q8mdg:r nucleon

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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 concerni(jn)ai / z7, 3fnyd2tl(a-mm4l ubqzjng 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, tp4f 7z ig;fsp4vog1,w hxp6o, he nuclear force between adjacent protons in a nuclp pihvgowo47fxg; ,p4f,z16s eus 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 penetraso3p r.o s92amqd:8xrte

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetri+j/xi ;z9l0)dklddj ate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrat 3z* /cm0rfnowlv xk6x(ed r(pca54g 2e

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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 dw/n:so /if.; s. mimaknown 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(xi)htn:hgyx g;q )5uj+d4uq nown 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 to l(i admdq,lh;qx)9 h.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)p.hzo4-s n )-czt.. nelbrwi an atomic 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 16t gx 1j)rjp;umevoby2 bv)-emitted from an unstable nucleus, the atomic mass number of the nucl1vj;t bvo b u p1rje-)m2yg6x)eus

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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, 51 0h.fcqj/ vigjmrz 8the atomic number of the nucleuq85j0 .1vchimzgjf /r s

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - -4ppo3) fb4s; eh ppbnMY - Ma) 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 nearly the7m p6(dwpodxp c1dgd /9wp1v; 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 ,jf,ks6jj. go 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 masse t(7nme3d.hm9 g9jaf?

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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 cozzbqn cmx2 m,t/(n8f6 yc*2 h)khqc4fnserved in addition to electric charge, energy, and mom kcff* ,c6xh2ynn/z( bmt8 )hq zqmc24entum?

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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-l(ifk1 rq4 m);dz7y gnqife of a radioactive 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 ux3 ; kjh/ jk5iu0j+luksed. This nucleus emits a single beta particle when it decays. When this happens, the resu;k j5jk30i j/x+uh klulting 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 curm3ju-gi j ,ld:s )ag7nve 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 hydroga*y,r4gj9xgib :hh/ z04sgi gen 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 replaced by bubble cha:n(gm(dqf .v 2f4s3ggh)ijd jmbers 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 ,pc2, yfa9 wq kh)evj12xdi4nand atomic number 6 has how many protonsaj,cq p9 nfd24wie) h,y1 kvx2?

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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 hobt-6ab 8j0p afw many neutrons? -bbafjp 0t6a8

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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,qzv 4h. 6xddb f3z6p :z5ruhd( respectively. How ma vf54h3:z 6drhuzz 6pd( bd.xqny 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, respectivih6iuds+4 sag(e0y6s ely. How many electrons are in one atom64 sh0+us e6isad yig(?

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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(o p,v ;utog-tnbst ug :+l85x mass number for calcium 39 are 20 and 39, respectively. How many prot;8up:o+gtbsxo n5-v(g ult t,ons 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 txztzbw.hi 2kg d -qb6g1*1+n 39, respectively. How many neutr1+gh *zq 1dbnbz2 t 6xiwg.k-tons 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 protonsmgd(4 cah 47)gkqwwq), 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 the carbon-14fazks5//set-m v6+ir 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 ma polhp7 9m gzu-55h)x/q artt :qdx,8jss 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 bindings:bv l(o;5t1omuirw i* 5h5 xl energy 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 prlm,p- maxbgd(s:m -)oce 03qz zuiq -5oton 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 atomiq+., *pskdj oh0 afqn-c number 88 goes through alpha decay. Its atomic number is no+p,*f.hjda-k 0qqs n ow

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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 undergoese4x8ah, mcap w/coi3; alpha decay, what are the number of protons and neutrons, respectively, in ec/x4 iaoh 8,mw 3p;acthe 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. Howlfm tjh.tpfd 9r k6+gkw 92-6l much energy (in MeV) is rej6- h+f.rwt 9mt9l6fp d2 klkgleased 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 number 6 undewi0 29r e:0(tst7vl :brp jxcgrgoes $b-$ 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 materialg:gapvd 77 u)m is 45 years, how much will be left after 100 yearsvg 7 upmgd)7a:?

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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 wi fx m2k9 qonq+ij+k73ill decay this year if its half-life is 247 ye +qmknoji i9f7+qk3x2ars?

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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 ceo1dg/i)j8z39 smjck g.n q bi4rtified 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 hwz /7,j-v oroj3gs:v ,l8cqe of 10 min. What fraction of the sample is left after 40 m qh s,,: 8zco/j-vvglr3j oe7win?

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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 ;qp (r4su2ct vhbk-d2iodine nuclei are ht k;2vb( 2up4-qsrcdnecessary 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 witccee)ajgp 3s2) +*)ncp 37toh z5hmx jh a half-life of 3.0 days has an initial activity of 327hsxo)p+*zna empjcgc5 )tj ) e3ch$0.24 \; Ci$. 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 m w;jmkrzjtz0; e -2wm5easured 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 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 a 5z;mwrkz2t0ew j;-mj rtifact 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 takez, *rk z,mrwxq m kj9/yr(+u4f $4.0 \times 10^{20} \; atoms$ 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 z:t9iyz08 t w*rv6 pzia $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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