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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 tdq0 i *vl*cx74q vcmv: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 iiw eltr1d-f9* p +2dlis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consis z:muhn.,kon4 z1o csdplb 5h3y3z./gts 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 detebk/ r783xkipprmined 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 numb/bba*sk5 h,euy s4y8g0y 3elqer 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 its neutron-c/ fe;cr,hu,dd/(hy i 3 2xoo;shqta number by N, which of theu;c,c oxahds;2d/y rheh,ti f- q/(3o 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 number of th,1s mrnk9-f.6 izlmm i8z o,pde nucleumodnrmk- .p 6 ,s,9z ifz1i8lms

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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 an5y8 3zpkxdwdzv) 9t 3t 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 sitjk hrt/ o( x7ij no**ox9zw)* 5izi2yze of a stable 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 atomi w0 0r 1carjfsnccz1:rd6 q60oc number but with different numbers of neutrons are refer0rzf0wr1n ccd:01j c6o6sarqred 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 ngr4soa15 t9ze qmx5w 9uclei 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 d1se /v3e bl k ji/btu3lcs2)uen98 h4defined 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 total mass o2y.qmrcu s 183ys-ky nf a stable nucleus is alway. kmyc 3rny8 -1s2qsuys

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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 nu:ua9iy3ym yi3cleus, 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 cont0t*+ 5vkv;j -phbgrgx1qrc5zributed 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 x+s qp*drp4 j43:oxoz-vybxkc,ej3- 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 nul7c / vy)cjoj n1um9s2: rf(sgcleon

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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 statementpkxv9uw g5n) hjt,(3 vs 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 adjacentjbmdcr / vznysl((u,0fv,di6; n7*fw protons in a nucleus iv /y, fwvdrs(* , 6dcmbnlfz;u(70jnis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrsos- t :9uz2iuate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr1j g ndig5 9kqg)xp69late

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrak4mc7 wi.3xj ojl l+xkx )k(8cte

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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 kno i+,dtp9v2nu86u:xrlt y nb d0wn 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 know ua4jo qqt;.o- isg,q5n 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 attractef) (v0o nvxtz(-s wa(yd 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 equ:j w3hnhukp(+al 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 n;gnk 53bo 3nnqucleus, the atomic mass number of the nugn3qn; 35 knobcleus

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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 atomicf8po f38xgy+ p number of g8f8popy x f3+the nucleus

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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 ogz*1vw70ig2z wer z8represents

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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?7fdt2 nq iux4d2-+gct

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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 u40( ilsq3 dzran 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 m2)zfva j(w3lg ass?

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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, 06q)vbvy +)/ni9r cxg8im jrmwhat value is conserved in addition to electric charge, energy, and momentum?rn jvv)+ i8 m0ix6br9 cmy)qg/

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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 fylc 4t 0/qt5z;hs)cgof 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 used. This nucleus emits a single b)kau xy-n eq(u, );xudeta particle when it decays. When this happens, the resultina- );u(xuy )nudxe, qkg 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 m. :ge9,kf gmdjjs d3+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 hydrogen is r31 xvn atnywf:x8vsj, ,. 9kma

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have 1w6kzzaj * ,j,j ghbn2been 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 1d -qqf ( f/hs9y+ifz+o4 and atomic number 6 has how many protono+ ( dsqff/q9zfy+hi-s?

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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 neb 28fyumqhh3+ (kx w5gutronskm2 3f xh+qw5h8yb u(g?

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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, respectively. zrtxf0i: :8hx How many nucleons are in one f8x:0xzh t:riatom?

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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 n qfg.9.hi n/oiumber for calcium 39 are 20 and 39, respectively. How many electrons are in one n. q/ .ifi9ohgatom?

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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*w.p1 0)uhp) fawqw na 39, respectively. How many protons are in w)p h) p awfa1uqw.0*none 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 f 96q.eo /yjoztor calcium 39 are 20 and 39, respectively. How many neutrons are in9te/zy.j6oqo 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 num6krft f fj/ n(vp :rr9dz*x1pzr*d0e5ber of protons, 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 3, f l/09csitw s/9hwlgdflj2the 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 isotope of mas;edssy9x mim7upx; n.vjwbxv5b 455 1s 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 bindin wu881rwf:3)b ;isnqgj w23 -lsczbelg 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 0o ;-lgh8p8qnshk4 oz 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. ztr1tr/8g cv 3Its atomic number is rtvz8/c g31 trnow

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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 underz )pxk*kd3wx7 goes alpha decay, what are kxx3* zdk)pw7 the number of protons and neutrons, 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 nitrogen-14 nucleus by beta deczj w73: dw*(xzhxa8 aoay. How much energy (in MeV) is released ifx8* waj7zxa d(oh:w3z 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.abb,rwx2.mj ;n:ma2-5s qqznr.fnf $b-$ 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 left a :e4e inmz0jpxdprx :b.pf*/,fter 100 years:rj.xd ezbfxe p,m* p0 4/:pin?

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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 xg c3(g uaw z7(q(s -2qvbcnj;if its half-life is 247 yeaugq2w3n( zab(v -c gx7s(c ;jqrs?

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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 certifi htqgjz2s 8tb *y7f-4/m1s3thkp 8olked 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;8 fittn g+xe sxkc,l2x)n /a; half-life of 10 min. What fraction of the sample is le tn2 kx;x; x,clg+e/8sa iftn)ft 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 radioap;xa;1b2rfnzj07 sr u(n3vd4 6xmqss ctive iodine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of (u3n0s; ams nq7xvf2z6d 1xr;brs4 p j$1.0 \; \mu Ci$?

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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 of 3.0 days has an initial d h2 p1yq/7*0aj8ls aju8tb uuactivity of paj d2 u1ast 0y88*l7qhjub/ u$0.24 \; Ci$. 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 mea-j-9 uv6if/i d7h bubm5v euo:sured in a piece of a wooden casket from an ancienb /hi7o fvuiv-95bj-udue: 6mt 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 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 takl lv/cpn5e4j+e7 quj 7e $4.0 \times 10^{20} \; atoms$ 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 az8 hohx,ctl xgrdj.7fna *+,9 $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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