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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 particlesmn q9, m0jbo;a 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 im i ) /te+va+4qv6.nh. zytenns

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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 z52w +-6 ,chmhp8pip9pik rtwts 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 the0m+5 a0lwy2gywt v ;bu 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 9e7 mx52b1k1zud puminumber 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 ne5 :upc qa19n3e mzws4kutron number by N, which of the followin1c9uma :5p z wqnkes43g 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 nucleusg+w,6t dqrd.w4zt)r h , the atomic mass number of the,r+. q)wh64 rtzdgtwd nucleus

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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 atom il04yal 4q4yx fs

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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 z7rmx -)cc3s h5ilr5hwwct zg:8f +6nstable 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,j;zrwef: qy 8tvwa1;r05r ld but with different numbers of neutrons are refer 0 lfw1:ryw85qdrev,a ;t rj;zred 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 nuclei0)g)t ktpk*g h 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 definedg xr -2xbnpu *+6x;bnzffs7dz n:f ,q, 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 neutmne8r4r6x *q y;owt m1rons, the total mass of a stable nucleus is alwayx 1n ;wormye*8 mr4qt6s

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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, energyhct5.: up1rwm: v, 0qa7lb cfi 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 contributez0j5w9 nz if )gp-w6z/kv ek*bd 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 perv+l iu2max09 uj.6ibe nucleon 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 pc1g y yivs 1d8m9qc-y6er 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 the nucler x 5 v;y7q le 5+)nkdd,:gyr-4uduypaar 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 pj poj*vjhk) 5)rotons in a nucleus io5h *v) )kjpjjs

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetjrfinu g/ t5x/zd9 p0,rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetra3bn53g vai bv4v;b(h mg1z1wux+:vivte

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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 0fpk+, e.djk4p4nc):8kdr e wbo z4wzate

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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 e2bdau fb9(:xo 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 known ason8d*x *lug d)o-;, oqs( ecda

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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 t/pq:q .zovk42fg e*cto 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 s h*yn;u:z 37zkwr)/lde ag0u 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 unstah wy;vwe,5z(8zu4 dtzble nucleus, the atomic mass number of the;u wd,h5 zz y4zev8tw( 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 atomhzo6 *rvmn(t3vm/ le (nyv ()oic number of the nuco(o6 nmr)n( zvv3(e mlhy */vtleus

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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)6ab0s i. c t:z(qalh8b 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 4 oq5hgrpj*zw / mo 7mte cik8r,c+4fyy-q2 ,uis most nearly 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 emitnr y35e1. jpi (hknwpf;lhc 5e(wur 2)ted from 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 mpd5(q/p qiuqbwxc97 6 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 of62qfb gseb jec(4( c3pof 93cs98gmyl radioactive decay, what value is conserved in addition to p bcef e 3mgsg8(4cj3c y6sl2f9 oqb9(electric 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-life of a radioactivko0 6 q 9yqg4drpw2/vle 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 bet/dt4 bl( z- kj3msp,wma particle when it decays. When this happens, the resulting nucleus is/(bt dkw4lz-jmms,p 3

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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 ckr s;-+x57fcue m8 s:*uwg quyharged 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 detectork3xf b b+zx7x9 that uses liquid 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 cb( rx58a dla+vd tai2*hambers 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 ne;cqmb+-+ (yo( l i+b v7yxt8o/irfvyumber 6 has how many protons?i -xmc(bq/re otvy if;y(b++vy8 7+lo

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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 man;s 4say;9epwx 6vb8yxe qw 29by neutrons?e 9;;6wyyp2bebx v ssaw 9q84x

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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 cud:e 6y) n1)xe9qe jwealcium 39 are 20 and 39, respectively. How many nucleons a e )uw x9yj1ene:)e6qdre 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 2czs:uq+ ia2oo4 *ldm5j 4/c)+blk f ud0 and 39, respectively. How many electrons are in one atom?s: )ujlb4u ik*a4d qldfco5+/+2omzc

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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 3ldiv j48dz 4- j0m)1 udjd)lcm9, respectively. How many protoim8dj m 4 4dzvj0l)l-cud)jd1 ns 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, respectibm. ondz, fs+p5fl0-mqb-a xwumqd(:i:*- tuvely. How many neutrons are in one dozfxbmm,nw qp.b mus+laq*-(-:dt5:0 u if-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 o,u0s gb5ofpu+l - py0lf 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 injy6clj(yr+t . 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 atom i6iya9a2bmq1 j;e g/pic number 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 binding energ)jwk/y-4 w1) wc5bxisp jxm 3vy 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 requisp ;9zy 2oqcb)red 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 number .v6zus2s wchg9 (.vhn5/j fr z88 goes through alpha decay. Its atomic number is zf59u2zhv6rs.gjv s.c w/hn( 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 proton 2pjj-pcu(+ihs and 249 nucleons. If it undergoes alpha decay, what are the number of protons an ih2u-j+jp(c pd 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 deca1tf ghg,r c *tr5tj 9u*(;wgnzys to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has afz rrh jc uw*g5tt,1gng(9 ;t* 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 under8fut* r3-r4ytyuf i axi4,sns5l *9u cgoes $b-$ 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 mr,kstu;jxhx+ l.l 4.huch will be left after 100 years4j .xrt ,l+ks ulxh;.h?

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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/h4t(4atdgep y p9tm6-m :qzb9 kd+iy is 247 yearspa +: d tdp94 imem(ygktz-/6bty9qh4?

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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 certifip ,zy 1q8udsg/kk;t +led 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 p+ fe l1 ho5:eo5k9glxjma 6r(fraction of the sample is left after 40 ol1x: e fm65oje hgk+(p9lra5min?

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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. How many iodine nuclxdel/dlnxpm 556io)+ *x v 9bkei are necessary to produce an activityo*bd5mx /iv6 )xpn5xdl+l ke9 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 of 3.0 days has an initial activ;msu mgokxeod8 9-y+( ity of g;m xu d8e (ko+9y-mos$0.24 \; Ci$. 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 wooden casket fr bfbf)m- 5lrjd+3128jmh sxhi 8hc6emom 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-14,2 bi mm 3jf1 b-+8e8h)5mlhxchfj r6ds 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 takeebxa2 ud)vv/8 $4.0 \times 10^{20} \; atoms$ 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 tak5spt7:du6g/ hlf)a)9gi nrfhe 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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当前第 题,此次习题练习共有 71 道题

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