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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 trh; (jss/-rov he 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 isny;kgjl o ool9ha;+ *,

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisd(fw-h e;6t;k*qy yt jts 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 detf);1 pc,x pgrhermined 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 numbenx9s,:dx6qnp;veyc r 6xpz hx3a 5,:mr is 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 aka::ge+1e9vr -qv x kis given by Z, its atomic mass by A, and its neutron number by N, which of the following is corrv1xage a- +:qe:k9vkr ect?

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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 m/ z7.ke9:car7rnu6u:t ztx sj ass number of the nua x/ujzc ns ru7:k.:t e9t76zrcleus

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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 ioggvhej;3l ++n 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 gfsrw- jkm:gjj 8 48o.both 61stable 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 numbers o.ci4;.cgfynj1pqsi rm5ut : qu,. d c7f neutrons are refefm1ud t j4:g ,5r c..syu;p7qic.cqnirred 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 nb4*6dudm+wks 7jo-2-0 7 wirz *btcbsaf:a wruclei 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 defl phrg ot+ozws2r;-91ined 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 protkvnl nl:,.dob,. m m.kons and neutrons, the total mass of a stable nucleus is always.odkl km,l.mv:nn .,b

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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 o j;7rh)c tr.chv3t-r form 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 is coz5 6dj qf(t1 (hgt2shcntributed 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 i-o m)z+x it7e,bz9odws

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy p blm(;k q056qcf(k gcjer 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 sap5uuse.5 pzom *+a2ztatements 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 between adjacent proto/yx,tjb mr:6r t(sk *xns iyrt (j,b*/ rktxs:mx6 n 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 penetr( lxrfe,f(gg5 ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate3r 1cmvj+zq73pc gp2dy- fd5p

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratesb::yzyv+no3j l j,4qkbv; l5

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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 aom cewu s)qd qo;)rv1y; :p5n*s

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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 kd(bp6 o u(j6ornown 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 beuwy- n(px)p.e2s/tk )rg d: ja9u6zds 7 qyjj2 attracted 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 etg kz 0oa7)s;2 vn9gqgqual 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 a8k m;-furkq7 utomic mass number of the kuu7fq mr8-k;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 nucle-q8)fur)y vz 03cqwtfus, the atomic number of the nuclry0)f8q )qcuwzf3t v- eus

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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 931.51av,f ws226m ndj o4hf yasy1 c0( 2/dti9arhx 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 , snc 98j2qysjh41mfcnearly 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 unstica )zq +rg-:2ssw.peable 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 mostrp;; x 2ve 2*vaw z5/jswjgyv5lgl2 (v 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 yf1a dne+ 5z+lvalue is conserved in addition to electric chargfn5y el+a1z+ de, 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 radioactk7brxcr) o;wh5sz :*z1raw/64px o lhive 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 emits a n*f y-47sili osingle beta parti7-in ly*s4fo icle when it decays. When this happens, 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 magn h9 lov.spgaa 2jq.g*umw7))-/ .ntwf znb 1fyetic 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 that uses liquid hydrogk6 ob)cn2c)tm en 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 b(6b ++z *nxmk qi3+o:qdjohf 7cli)y ceen 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 o45yr ay-nc )cj;ewm1nf 14 and atomic number 6 has how many protons?cyn)jr5 c-y1 4nwem;a

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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 w4pmh dkdf l2;w 2 d2er3::dvfhas how many neutronddmhd:ef2w2 :v2dw 4l ;3kfp rs?

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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 dz m ojfn4(:(9 lwhy+t1bx k8l20 and 39, respectively. How mh1y4zo+l9( :k(dtlmxf b nwj8any 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 ar xs+ 4*lzn1hpye 20 and 39, respectively. How many eylpz 4nx*s+h 1lectrons 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 20 and 39, respectively.:;ws23s ofodj How many protonsfj 3do; 2o:sws 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 ca c;: j:pn8huv(ms ipc o-+m/qflcium 39 are 20 and 39, respectively. How many neutrons are in one atp 8m+-vh:pcj/:( ouqfmn is;com?

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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 protpff .mu y233gmons, 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 ins 2 ty)1wteiuq8)+t8wbp6 vlj 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 number 15 has an isotop) dketqb/2d: ke 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 jbcbqn) 2hpq4*e0i yv ,p(d e,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 proton 7x .tr)cjjy ;+bnrbpd)v9n7 yfrom $^9Be$?

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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 at2ko m 0jv)j r3nke*4iromic number is nr 2nrk 3j)j *4kvmoe0iow

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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 unqh./g98 vt9ulcq uns9e*x n 6ped;0skdergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughtsh ns; g99lk*d8vu06uc/npqee.9 tq xer 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..h c2) gvb+* kgrd*gxzx5;b-m okh0v l How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has a mas+gl*brx0ogv5;- dk hx ghz2)kv*.m bcs 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 xlmzl4,ex2pa)0jq)4 tdx7t c6 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 a89wt*ln; rsxx7sbi +w material is 45 years, how much will be left after 100 yearsi7;r t nbl8s*s wxxw+9?

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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 dfl 46re 9+v9tt j/dcsif its half-life is 247 yeev+ stdr94l9 6 df/tjcars?

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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 d8u tofwysx0)s 9ntjjq+ 2y40z .u 8vzat $10 \; \mu Ci$ 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 fradp.iw y0av6:lj+g5gs ction of the sample is left after 4pwag5:6s+vd lj0y . ig0 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 i ns29l 3oaso.ss 8.0 days. How many iodine nuclei are necessary to prs3 ols n.oa9s2oduce 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 with a half . q:))xbcy*t cszpg1m-life of 3.0 days has an initial activity of pccgzq )t.:bys)* mx1$0.24 \; Ci$. 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 pl*1 x/(7mw5hqdj v y, cwrhvk;iece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given shv7l1m,dhk*;yrjcx (wvqw 5/ample, 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 taaw1rj07 u wmidr: m*y1:ywd1bke $4.0 \times 10^{20} \; atoms$ 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 tak:*w36, svyc:m qrpk*zrj w haf1n7by,e 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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总分:71分 及格:42.6分 时间:不限时
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