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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 paa*vm zg ql bh4g6m;d51rticles 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 ix1 gwd ,,yrkkopdv43 4s

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus f+7yj r0 j3a/czk coy.tg0b:oconsists 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 hdux f /+q6 1dyokd,mn)e7 f)knumber 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 determy kau,ppoob+nfxc,37) 5k* ovined 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 is given by Z, its atomic mass by A, and its -8; pear lc(aj1)sv b(yihue0neutron number by N, which of the followucey(-aj)0aps(l8v ;e b h1 riing 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 unq1 c m, 8lvh-b4og 6ayqlwf7:lstable nucleus, the atomic mass number of the nuc,lvmywq7l6-o4a q1:fcb g hl8leus

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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 atob/h -nc bm1,6 rkb.bfxm 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 stxs,h9kk dd8 )xb5e3tl able 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 diffk in3rmx5d3 j (pd-uti+ mxk67erent numbers of neutrons are refeuii3j7 x ( -ntp d+d6x3mr5mkkrred 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 4 ce:nc7bt7dwhbk ,7t ld2p0vnuclei 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 definedl.xicq1qpd2;s ( gb/ mrfrp+) 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 of7svvri.iv/3w7fqz3z. czc 0r its separate protons and neutrons, the total mass of a stable nucleus is arc3 ic/.z .rv73 7w fzqvvizs0lways

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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 h*fe to/cv0 jxh.xm3fd. x5 )yrtt y:i(*fol8stable 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 nucq b o71 hio0am3)t(dhqleus is contributed 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 nucleoq/kdwmc3 a.yq2sa /g1 4ik h9hn 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 nucleo*.1kvnusgo u rxxbe2g(c a15+n

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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 force is famvb;b0i3dh0 llse?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostati , d2csejb0gvq -.--k,unclfgc force, the nuclear force between adjacent protons in a nucl,bgus d0eck. l c-- n-jv2,fgqeus 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-*9t sdovp kk0ate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratc-o)6/7onxs/ 0 g7e;vm7wxq0cz4vwle g cxvm e

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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 lx5 sn3mgv7/jate

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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 aspcd(7 -(st9znt e(hr e

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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 ke*y.ob +6w qbfnown 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 attr z:a 6khvpopr5ubkhv,)vay7k ,68 bm9acted 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 equckkxev -8-gq(5txw80 +2av*jvgp kssal 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 emittedutno k8l;0w lhxu j (0n*mkx*a4ti)7e from an unstable nucleus, the atomic mass number of;0wilant)78tm*(n uehu0jxx*okk 4l 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 i rea7 i,ddbb0s f bka:xd965zf;ieu 14s emitted from an unstable nucleus, the atomic number of the nucleues:10fa7kfi6 e,;dbb ia d drxu4b9 5zs

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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 9hr (t8qup:i7+:esa0b vvq y )c31.5 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 followin(r a1gxaj3ye5wdf/ cdb+3fk ) g is 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 emitted from(*zvea mc 5*a7ut6hy 2 7bcczm 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 mass8q9ymwd 9ign (dcd1m5 ?

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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 constmpz4sg6 :tu ,chx w,*erved in addition to electr*p4txguc s,w6t,z :m hic 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 n3vyda;i 2nz,tf/e bnb 22t8r 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, carb-np78 zlo q;0miyfps-on-14 is often used. This nucleus emits a single beta particle when it decaysy mq;-ofp 0 8i-snpzl7. 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 thatt -s /zn/vk7mhnbezsiw t-1*6 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 usesc 5l5zho,nw yj(a /l:s 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 b3ov :nri4syuz1w0p 0chambers 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 mx *2hk+ a-ejfqass number of 14 and atomic number 6 has how many protons2 +*h-jeakq fx?

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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 14y l2vlkgwg6d4t46m; j and atomic number 6 has how many neutronsy4lgvt6w gj k24;l d6m?

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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 areg9(9)y)ckh (xgmmlwf 20 and 39, respectively. How many l )y9w)cf(xkm 9g mg(hnucleons 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, respectivel mgr+)qwpo, 6/ h.wtuv n03riky. How many electrons are in one atom?/g.o+rmw , 3p)0ntwik r q6uhv

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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 asirwy )bl (7;vnd 39, respectively. How manwl( ;7ri)s yvby 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 calcico mh9sie: we0 *+4yvp3mnezgu1 ,(ujum 39 are 20 and 39, respectively. How many :y9o s 4+emv,h 0*3(impgue cnezuw j1neutrons 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 number of protons, neutrons, and elecwq 1//z(qai dktrons 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 t ot+uxiu-k xxpd 4;6j(he 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 32nmw..m r)4q fd,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding ener vs7a*c lh .xg5d:o1fbgy 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 rar81+9 pjyghgequired 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 88 goes through alpha decay. 4 b0,voh v4,azelwbs3 Its atomic number is ve, 3awbs 0o4bzvl 4h,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 decay, what are j;n ,/m;tq0*8c edae *iuf)zh /kp zxlthe numb p/u,zex8;qtme ndif)k0lj */h a*;zcer 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 d: hyyl8c c l 8csf/5hpcb6:tc)ecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is releas6lc8yyb:pc hlt 8/cc: f5)h csed 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 atomic number 6 undergokt(oux62np5e t2 c)ux es $b-$ 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- o5 7ggs9xrwy years, how much will be left after 100 yearso7x-gg rsy5w9 ?

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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 anr1ndtzx(2oy 0ozwce.s o 1o3. l qf*v2 atom will decay this year if its half-life is 24f2 1oy1n. c0wxoq .z 3eo*(2v srtzldo7 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 certifi:4e4e p b-zyk,z f1pkied 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 frk-qoy9c8a1 lp i8ef b.ek5+f vaction of the sample is left after 40 5bk o8 p9-yakffqecv. +8lie 1min?

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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 (:w sx+t0 clij1scq2lnuclei are necesw 2c1isxct +(jlqs0: lsary to 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 substange4*) csjc u2y-js l-oce with a half-life of 3.0 days has an initial activity of gcj 4l)-e2j-o* ucsys$0.24 \; Ci$. 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 carufb7 )fw9+cc ybon-14 measured in a piece of a wooden casket from an ancient buf7)uy +bwcf 9crial 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 ta: gxz,q;na.w(lj,/wegt jwb; ke $4.0 \times 10^{20} \; atoms$ 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 iym e*;tyqbyh0i/ qsf,j)ae6 95yco4 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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