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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 particle6sed x*x8v3z dmq*;x qs 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 iuon9 q 07zlct+ gfz/1bs

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsd+ 0zz1hzd ns*wa. k4p 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 is8mag ooxv-:;l p ikdo 9c*c2(w determined 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 number of+4wto9v dth5 u* ;xqpb

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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, 8i2 t.ccx.sz :2 jthakand its neutron number by N, which of the following is cochx jci2.z .2:ttak8srrect?

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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 atomix0*x4 ha4uf*kpa2mpi c l a1d24k cw8fc mass number of the nuclef8x*kcadhwpi2a21pf0 m*ukxc 4l 4a 4 us

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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 w7ec 7ispph +3in 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 the size of a stable nucleus becausev(gg .d, u a/+emno(jh)cjg e: 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 neu:69 he(eet) ,uumsox ytrons are referred to6(t yu9hemxu se):, eo 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 hahynl3aj py* (gqxz :z1rc1h:+ve nuclei 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 defe;,n w cbqx)pfe 79do:ined 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 sepa 6+x-jy jqr8mxc.h7f nb k-eq*rate protons and neutrons, the total mass of a stable nucleus is alwaj +8rnx-q be7 mj-fk6xq*ych.ys

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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, enerjcdayo3s*0k,uu n () ugy 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+gs n z0yd863dhrch 979 yfujm nucleus 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 nucleo8etef-g xf;/8rk z,sg n 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( h+r mykq9)ep 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 statem3xy y- xj7q m9b+wacu9ents 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 electrostatav : a38ied/iaic force, the nuclear force between adjacent protons i3avd/aea:ii 8 n a nucleus 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 penetb8n4 29q h+dv(qs zafwrate

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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 f f+g ifmv8u2cdaps0n-1c: 7ote

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrate,w.xj*f ,o)e sg- f xdi,2ivdw

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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 ek0*5 nptxp g(q:l2dk 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 ke(: v1 jf/qul.nfc.2chl vy 1wnown 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 willt/4xp:z*h kx reem p-;qo8tdb/ -4jgp be attracted 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 atomij3jt/ ty+k3l5vdy ,j n( cn8mqpe3+yrc mass 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 emittwd;.l(c/ g3rlkmh lm- ed from an unstable nucleus, the atomic mass number of the nucle/(lr- m c;wglm dkh3.lus

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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 atomic nu 0 rb:g53rmtsnmber of the n:tg rbrm53sn 0ucleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX -g0bgzn7w 2x0t: jsgidrj0w e;+6 otg / MY - Ma) 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 yh n/ d+k9xto3jbl1w.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 an unstable nucl lg6)ezm)*5lw1vqzygeus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has t b b3x,r- 5xm*gz7k1p/opcwdw8u a7tahe most mass?

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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 conservzq 51uc+ss)qd3 ;mf nwed in addition to electric charge, energy, and momentudqn5;mf ss+ 3)cwzqu 1m?

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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 substam 7 1*rc9dmgcdsdhill+9hs++ bpz;, lnce 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 singlekc sj07 9oh anqfx24e040hvo a beta particle w j2n cf44o7k0o s0x qe0ha9hvahen it decays. 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 that uses a mifm m0w.:y5s n5rd r7hagnetic 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 liqulup+t(dw /bxbc18i;h le;f w*id 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 , 2zw t71sp s6ownmd-rreplaced 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 14 and;wtt*k 5 can ue6tr*o: atomic number 6 has how many protonsntrwe:5o; 6**a tuc tk?

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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 2nojcm/, cc(a7/; a g0zb wwtw14 and atomic number 6 has how many neutrowct 0aowbngwm;2c7/a ,c(/ zj ns?

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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 fo *ihj )-s lzlbs wz*p;;dga1v1r calcium 39 are 20 and 39, respectively. How many nucleons are in one sihjzgs 1bva;w-*dp1l *;z l) 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 calts po k;fe f0ii6m; lc r0wagre :kah+69;l*;gcium 39 are 20 and 39, respectively. How many electrons are in one atmgf6iec9ag;os0*: w+t r k;hlrai ;0; 6fpk leom?

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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, respecl.aoaa;x +3j0-j aguetively. How many protons are in oneajg ue0;+ aj.al -3oax 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 30;ei(or 8hvjqn9 p1zy9, respectively. How many neutronq1(ven0j r9z;hp y8io s 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, neutronswtj.hi0 e;in2xvx0 so*s u,v -, 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 thebhf tka.tkmgy4s,7ypa +0,v*f0 n zy-re in 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 atoi9;mx8egffha u gv616mic 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 energy cre1e/fptcv s x x0b/xbwi7+fm(* ,f 2of $^4He$.

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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 requi*b :z skosjk82v7caf82-dk1mzqrdu 8oesa-,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 88 goes through aaidri4 7xlq/) i)5lja lpha decay. Its atomic number is nowiraj4qa5ixli d) l)/7

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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 nucleonso2gd zvn63 1xl. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daughter 1 xv6gl zd3on2nucleus?

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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 n*d0bre5b ;olal4hf2 iu 7hlt8itrogen-14 nucleus by beta decay. How much energy (in MeV) is reledhf lbo7u4i; 8l0*lb rh25aet ased 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 under2fp *kq b.r2shrto+t4goes $b-$ 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 afte ngf -j5ri a8,ll)he:cr 100 years e8)g:,5ljihla fcnr-?

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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 yybb*j ph75ll 2y3h 1bx1k ets/ear if its half-life is 24*lph lby 37b he521 1kb/yjxst7 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 ced: w ml c)1.yrx(c*lsbrtified 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 of the sample /c7mwspf;ygvbpg2 x3: e9go7 is left after 40e3y;g 2pmx: fvgw/7g bc79spo 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. How many iodine nuc 0.yecvf90f*zmw .fdw lei are nvcd.yf m*w .wze0f f90ecessary 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 substance with a half-life of 3.0 sxqx9:: nur)f3n-i h )+ ewvaedays has an initial activity of )h vaqi w nu9-exx):+ :nrfs3e$0.24 \; Ci$. 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-14dyd4kd p;,g w8 zx*)wg measured in a piece of a wooden 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 ligwpk 8g 4xz;)d*ydw,dving 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 take wumi +l::(9pom3eozh$4.0 \times 10^{20} \; atoms$ 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 a 6k)s9ir.j k/*i rgine$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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