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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 partiknfbxj76wdrz q i y2,+q*8/bnf 0 *liycles 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 ig xdq.dagl)gr /03 laue,)ne-s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus c39ttj:ct:, ra1 yjzc 2 jannt;onsists 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 number vjjmaf*b3 fa9 b.x+4c 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 63ag j +uhfwbm(k(1pnby 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, and 8lo(kk yk0jb5eow 2t/7fj 2kzits neutron nuk2/j20o 5jbwzk7kk8ey ol t( fmber 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 no y;s +l0:9kh1u pmdsjucleus, the atomic mass number of the nucleum sp0you j;1l9+shd :ks

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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 1qs p37lj7aps:t,0b m; udyxf7iu q z8in 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 t5 r7 -gtmgfw9 q v1on:pwd)4hkhe size 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 atomic number but with different numbers of neutrons arx d4jv)vir*bp3 d f++pe refevf+dxd*3+j 4bv p) iprrred 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 nucleir wf h51;ovh-v 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 defite+hax.lur( 0lo f7m /ned 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, th ag26r3yqwr0m e total mass of a stable nucleus isg3ym 6rqa0w r2 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 stwu )sz1m)ob-y; hm:ieable 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 contributed t lm+x pspo4.ff 4u:o-oo

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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 nucl.a1f o+1itbm1oy:4bygp f h)meon 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 nue08x4gjkxpc6p mcbv4 /:c0g gcleon

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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 the nuclear f)gi. pq0g)rlvgh4ux +orce 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,6edud 4g 7h0icypg:ts0y 7ia2 the nuclear force between adjacent protons in a nuc dpy2g4iu 7y6c a0t7gehsi :0dleus 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 penetrqw-fkg95k x:tate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratj.ae t 3/3pketu2qw.ne

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrato76tav-u f y )66cizvse

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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 als*n5- 8i zjo1zsbfpuq(o 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 knownv5ig; l7pe (vh 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 tpckj 9.8 c5ypuo 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 equalxjoql* au5 /mvt xe6(5 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 frs9* 2 efs2grst((zhbeom an unstable nucleus, the atomic mass number ofb hts(e s e92s(f*2grz the 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 emitw +fzs :scwb-5ted from an unstable nucleus, the atomic number of tw zfwsb- +c:s5he 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 - ns (/:cxb b uq8iz1 l)l94 tjp95dyl)d(bszy pMa) 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 the same as a gamma raym4wtan* ,r g9wpi99 xb?

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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 fromksse:p5lzg3x0i vy sg ( 1z a9)mp2f4g 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 mass?: lak/*sox+6cg:m qya

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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 c;+-t)xp -tr2.q 4vqb bg scnyeonserved in addition to electric charge, energy, and mo2nsycpq xt-;vq.4b+-e b)t grmentum?

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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 radioactive substance as it decaew6 7s2rorks2 pv9sb. ys?

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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 nuphlly*vg sh 6j3033cy6 f 5hcq05 wnklcleus emits a single beta particle when it decays. When this happens, the resul0v ks yhg563 flcq3jw30h56hycllp*n ting 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 fieo f nr;*cv0e+gifj/ 5cr ;))sygllc 5rld 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 hydrogen is anhgg6( x5 ci5 qe+b:ii

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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 be p5xf8 vie0,fbcause

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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 number 6 hap-jm 9r b,jp 7 2b2gjd99tp7sbzdim 2es how many proton tg, bipjjp9jr7sme92dd 97bmb22- p zs?

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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 h4 h igctg(x6v/ow many neutrons?c(6ghxv tig 4/

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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, respectivel w tg .8kf98dzqszktru9e8sldd,39p 5y. How many nucleofrt u 9e8wq88ksz5.93z p,ddgkldts 9ns 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, respectm c,w0sjgc. thzehh od6: k: ia/)g26eively. How many electrons cj.w:)gm2,g :et do 0hk66hzac sihe/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 mqn;h// 8yfdd9h9 dshaass number for calcium 39 are 20 and 39, respectively. Howna /hf/yhdd q;989dhs many 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,o83m *d dmco5rvy-+hq respectively. How many neutrons ho8 c+dm 3r*qy5vdm-o 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 naxr8/1b 62klbbm1gj yumber 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 inc 1m, qii80yzz 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 isotope of mass number 6 29sa2tjghvl32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the bindinlt0r5wa;t o xc10 nq4/.fqhg2x ps8 i47olslv 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 remove one proton fromnzb .gc4d +xjmx9zl(b7(a9b *5diq c j $^9Be$?

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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 atomic numbergpqn w95j5 8a3j 5cgik is q3g c j8p ga5ki9jnw55now

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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 decay, what +2w vzzha5u:, *fjgayare the number of protons and neutrons, respectively, inf hzu:2 a,w*ga+zyjv5 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 nucleusvgj3t7/or cgvu9ij;sqrjv: c xw6/a9 j8-2fv by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14vxf;/vvj6oi7c-j gt 99qcruw3j a2 :sv/gr8j .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 :y)yl-cmr o+s 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 mate s+*mr qrplpkiv,a)) 7rial is 45 years, how much will be left after 100 years?,) pqpa*7+lm )iv srrk

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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 dec b6+a abr1s :w73bx)jpzq 1k wsrq7l2nay this year if its half-life is 247 years?1bxr+absn6 qk3 rw7lj2 )b7pqwsa :1z

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source waubrr ng+ 3i))o *5wrkis certified 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 fraction olpt56ytmx 7zob- vf*f* tj2p 5f the sample is left aftf* 52-ftpmjotl xtbp5 vy z67*er 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 days. Ho 8n,wk -)w,5d3pn jkk:irnchx w many iodine nuclei are necessary to produce an activity of x),nk:k53jp wk-h8cnd rwi,n $1.0 \; \mu Ci$?

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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 activity4;lr 2r :unsz.jozkd8wf (yj)ih 8w*z of jr2is w 8d) *yruzl;zfjh ( 4zn.:wok8$0.24 \; Ci$. 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 war6dj:*l 97dccw )eawv63 pfyooden 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 yeapjaf63 d*v):w79 e cy6wlr dcars. 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 takewzrj 66v/s7(vyvs7qs $4.0 \times 10^{20} \; atoms$ 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 a6hs2d5m cfg2l;-6bhwz+pbo p $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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