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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 2mdoogsfz0l b: . u0,. 8mdttsmass?

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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 isg m5 - (*(vb gtnshotn44ads,k

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consist , juihwytwt-1qz,6/ks 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 byq(l k*gl p27 rpy/vve;3nb:q u 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 gq7v/+f8pme c 371jxjwmj kk +o4(h:hqg dmf -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 a233v.vunbghk9 zw;a(ez kh0 is given by Z, its atomic mass by A, and its neutron number by N,k.;9a vbkgnhzvuw2 (eh03 za3 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 nucleus, the atomic mass numberty6x9uw c2qn u;+fpq1 of the nqw+n1 9 ptq2f;xuc yu6ucleus

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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 atomy(k*edr n 7sv0 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-dakjzn9 s 16z g05w n;qcw-jmw33jqk 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 differxmc-b1s 6jau p5wj3( sm1hm3t ent numbers of neutrons are referred tow1c1paj 3u mtj-mh53(6bssmx 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 wither4+3 4zlgw6jtii ,vy

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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 ixi0r+pma srz .m0wyk/) )y k+s/1rlras 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 its separate protons and neutrons, the tjw8(8goy b .cq 4hm8ouotal mass of a stable nub8.uh 848 wq(ogjycom cleus 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 nucleus, rw i1e:qxk4:penergy 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 contributed t+c f z5tq,roxc+z*+ vio

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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 nuclitavp :5dcg/dzcu1+ /eon 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 nucl fard4:sb-iq xj.5 qe4eon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followingb( m/82 tm6eh3(cyk9i votoin statements 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 betweel ,)qg)wm2mr0vavm (o n adjacent protons in a nucleus is02vr,vwa(m ) qom lgm)

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrak:y1 qplg sdea+(; 6qate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra: cilfw qg 0:hwnx-*s7te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetr y -yry5;pnahh2ld7jzo fx-rh.)3/arate

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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 alsof9u5o6:tvtes+:ct ff known 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 knownkjt4ucpwb+wyp 3( p8- 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 attd(mxbz3-b kc+ o-g-m fracted 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 ma3h ptx2/u9v;:m slqon9nnw +ass 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 an unstable nucleus, the arj8ao0 r/r- 6l/xq,zyuu1kl y tomic mass number of jq -xyl u0u,ak/yz8 o r/6rrl1the 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 r.ay 5w n(x+xahxc l;1atomic number of the n1a.xxhw aly n( +;xc5rucleus

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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 +k- n h(gh4rfmrepresents

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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 the same as a gamma ray?if iz.ad+-y8yyet e:3

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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 unstabltb* rm u; 4g hpzj,00(e1uxhzwe 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 m o f /ct8kn3ea4t7+hjaass?

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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 rady.)eu 6 baezc2ioactive decay, what value is conserved in addition to electric charge, eb u2 zac6e.ye)nergy, 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-c)5*a mqbd;1b24hn bliw as/ g)lcl0u fj +gl+life 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 ofted+-h -f-:93 gkkj2phf b/;eqzn nqaqnn used. This nucleus emits a single beta particle when it decays. When thbgnqha3pnfn /- :k; 2-df+eqjz-q hk9is 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 thau5qxm 8/nu)m zgleg(ip.-f 3xt uses a magnetic 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 2 jor ::9y69gwh/hzjkdb:a jvliquid 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 been replaced by bubble chambers becq*q0 5b21,7kyp*n2m v .vljzbp dvzgsause

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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 2.urh 86ascsbnumber 6 has how many protona8sc6h.2 rsubs?

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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 how many neutrop;08oz 6xmao.f4 -zf ypcyi 4 ig.+dh/-y mbegnsz /g.z6y pmi+xd840;4giym -. -eyo fcfpaohb?

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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, ljd5ya5hzp5r6+ g tc.respectively. How many nuclj5adhgrz5p+l5t6 c.yeons 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 -/bimt7s 4flj8frai7mku; p.number for calcium 39 are 20 and 39, respectively. How many electrons are a sifbmupi8f/ jmkt.4r;7-7 lin 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, respectivex ib :.qze3b:xly. How manyb x3zbie .x::q 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 calc2;i vxt1hx7f oium 39 are 20 and 39, respectively. How many neutrons 1otxf72;i h vxare 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 uf .uy:-slg+f 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 carbo1 -r2lozhtb5ipy/ni v- bl4:, sq0fcun-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 ha5pd+fq txk :4y+v5 sjls 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 bindinhx(owr :c )dr.g 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 removpm6 oxj k2a*q,e 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 decay. Its a:s 5( kfoej+)m 9lojbatomic number isbos(+:) eofmja5jk 9l now

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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 alpha decanyckl,f5 jb q i2+izj7g7o9/fy, what are the number of protons and neutrons, respectively, in the daughter nucleus?zjco7gf lb nq+ / y79iijfk25,

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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 tvk4bh x s8 w-stpv(-*eo a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is x8(tv ek -vwp- bhs4*sreleased 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 atompl i: gw)e-o)qm 2gs)jic 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 gwb:ygmi: l3d35at / swill be left after 100 yearbadt islgygmw33/:5:s?

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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 its half-life rmih7t arvb e9xqe:6-vk5d / 6is 247 tx6he- k9a7iev rbdmv 5r :q6/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 certif9smmr sgnp x5 9i+d;-6jhe w)qied 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. What fri 541/ghikuz 1f2pjmpyh j,* saction of the sample is left gjjm5puips1k/h4,1 hz*2 f yi 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 radi3akxz v9c j/ n74av1yuoactive iodine-137 is 8.0 days. How many iodine nuclei are necessary to k9v 1jx 4u7cnyaaz3/v 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 with a half-life+01uxu1 .la9mdmcy 2no3 jdfb of 3.0 days has an initial activity of u0a139oyu bnj.d lcf1xm2m d +$0.24 \; Ci$. 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 a w-q3 tkwf;lxggpm34 5d ooden 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, m3-f pxqwt5l;g d4kg3 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 takvf icrw(*m3kodbo jy,v1p*5) (hdvt 0 e $4.0 \times 10^{20} \; atoms$ 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 tak75uhds.p 5hkwar+y k /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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