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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 pjjh7*wu 0x* c ol4i-efarticles has the 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 isi+laakg/j k 9svxl +(7

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cd q,q8bom4x -lonsists 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 numbet c(ydxz0 g12vr 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 detegnp15inn9f q(rmined 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 mass by A, anj+7j zmo wcjc-4/ lnzqd*e-;l d its neutron nq ol cw-7jnez;ljc+ jm -z*/d4umber 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 zu0zcg ,88im unucleus, the atomic mass number of the nuzgu iu,08z cm8cleus

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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 iny-5vk:cf.v m5r av xz) 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 nucleus because alvsy-d513h f7( zjxwof

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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 n2bia,yedfg9n*-kz y9ok n1 u* umbers of neutrons are referryiez2 g1 *no ,kybda9*u-9fkned 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 nucl ib)3 )y-u78bc j tb/u.arrmxaei 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 b+sx k4fbq /:6smd43mxtji8nas

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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 protonhuai2w3qc4 +ds and neutrons, the total mass of a stable nucleus is alwa3 2uqhcai4 w+dys

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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 ad hyi:/ a6,bb5a8km wform 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 isc1n5 c0d3g3f-gi,smgb1 eggj 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 nucleon +e zn ryrk 18yto4s3i7is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy pv8*sb2l 6hypz)d/scc er 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 concerning: g ,af 6bi9t3)japrsumpx+ w*b ux6;w 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 7:v5zx)o6vodpp:i(r o hw3ytc/2ump force, the nuclear force between adjacent protons in a nuc3rpox vzpu62pmo)wh( o7:i t5dv : cy/leus 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 penetrateqlgi7u)4 t *ra

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat* 5-f) wu 7qvjcyla4 u93kthore

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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- 4x/ wh:tiy3l ulnb-qql k(r0e

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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 asda(ix,o f2s4h

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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 ala)/p *y)orvvs

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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 p0u(7ygh exih (7x4h fa

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles havegfihf5-4hi q lg97h)o 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 i3juq ;ewj1 /j w*q6x:1chd smis emitted from an unstable nucleus, the atomic mass number of t:*e 1jwwuj i sqjmc36dx qh;1/he 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 atomic krn j3: -7ynhhnumber of the nuc37n hjr k-y:nhleus

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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 represel-k96dkfam* ww 0h6jwnts

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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 thfy*8s* ierq -p;cq la2e 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 / m)*q9tmo;yy*44qrr y v mq5cqr.xdfnucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has thepi9lh v,ce 0e6dcq151sf +xzr 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 v)4(7mjr - bus uh/ygwpg,g7g talue is conserved in addition to yh74ub(w,ur/g m-)j7pg tgsgelectric 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-lifel:0o-.6xlpoyc/ xzd(yt-glp 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, carbpn/sps kl;n 79on-14 is often used. This nucleus emits a single beta particle when it decays. When this h/n9p pkln ;7ssappens, 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 fiejfd eua3h(-0o6w6 rlge, :netld 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 that uses liquid hydroge3 tps+k,t; od /dfcjob7x7,7th- bjwa n 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 f0 ;be. r1lp; phgys/hbubble 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 nd j,uq9;zm2zsofysn m(5z)23fi /li eumber 6 has how many protons?ifjfd)sqz2z 3 ; 2nuy,9 osez5m(im/l

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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 anda v es7(bm76zplo r;+bfyj- )d atomic number 6 has how many neutron y)r6(7-7z+bm vbedj; lsfa ops?

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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, re .g ipu/ i;,b7y4:i grdzt;qd-gbvuu(spectively. How (gy:4dt b,7-qiubgdu ;riuviz.;gp/ 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 fofld ,3j/* (s* z:zgwbdobyzy9r calcium 39 are 20 and 39, respectively. Ho 3b*yg/* ojbzsd,z9flw:d(zy w 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 for calcium 39 are tm vm-7z;(/xekqd0 l12kmbqa20 and 39, respectively. How ml1tz b-x 0qaq(m/k dev2mkm7; any 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 number for calcium 39 are 20 and 39,76;0be qn irtu respectively. How matn6ure ; 7iq0bny neutrons 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, and electrons is 5 sgf7 oercq(p+ u7mi6.y p.iw41

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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 thes3 u5svqq++1omrd7n6m qvj*cre in the 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 numberhsnof : uoxu*:g4t :9-z2ax 5oet*hha 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 bindinggfz0us k-)wansrm j 40yfba bx:0c058 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 requirediv97 9dhkwd lucm8ddin.h - 3- 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 numbekxk;:3 x5jq dx*f 2tplr 88 goes through alpha decay. Its atomic number is now*5 fjx3 x ;kxqld2:tpk

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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 undergoes al p 1ek**-./kkmextge)ivg cl,pha decay, what are the number of protons and neuee/m,k*lp1.-tc vg k kx)*ig etrons, 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 nitroge.lvcb0g qjiz8 d+w 568mjjn; bz6z idxb*2vk1n-14 nucleus by beta decay. How much energy (in Mzz8vdb jn i.xj;qd jwvi*k l5+02zg6 m8c16bbeV) 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 number 6 undergoes o- bhyw- jl3-;qos2pm$b-$ 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 n8jf w 2m0/dtcl3hnha6bf(p 5zaj+ +cwill be left after 100 year0+tjn8+wm ph b h nfcfj/5l3aa( cz2d6s?

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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 yec.jn05nikl u(edtovy 7jd,,x d (ji(-ar if its half-life is 247.(lkxc tdnd,5,d-0nui j(ejy vj o i7( years?

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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 at r5jgn x(ho,)jcgd.g( $10 \; \mu Ci$ 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 n ec(.c -bo v,2ehgeagp-:d *iof the sample is leftb-(ci cn-gav*g de,.o:p2 eeh 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 jskxo 6hr0mrzmqp ;z48q *66 k*lu-qs days. How many iodine nuclei are necessary to produce an activity of 8 rj 46lxo6;hp6qmrks zks0q*u*z m-q$1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substancs+ny6w+ t kih/j :l7iye with a half-life of 3.0 days has an initial activity of 6l +i n:/7hkj+ytwsiy$0.24 \; Ci$. 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/gclj2cq9 d6 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 countc 2/ gcdl6aj9qs 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 tadingfw+r/4vrsux 0l h/ xr/sd+ey4c8u-z5 8 eke $4.0 \times 10^{20} \; atoms$ 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 ab (r ft67(8itvbufw9puw38a.tvo ,h h $4.5 \; Ci$ 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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