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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 particlest)bg9 8s nwov*4;pye 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 ixr/mvk.tjotru 761l . 1qg)t ns

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cons (e7 qsm8wql/ o3/umohhr d.2xists 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 determine5l( wm;w5z4 u)w rrzokd 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 determizgoc;mr49 im +e*c5iv ned 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 numg0 lc5jb.rl 6yber is given by Z, its atomic mass by A, and its neutron number by N, which of l65 0g .jcrblythe 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 emittel+nr 0oh-w ty,d from an unstable nucleus, the atomic mass number of th yowtnl+h0,-re 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 w i52, mtn*h+a q0mvip y lo8(ob)jc3xan 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 m,5fgah -6 szxnucleus 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 are .lr* +(ujuiby)lu1 3v,nnzuf referred tou(uvln+nfl1j,.3 *)u ubizry 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 9vep9v* oyn 3xnuclei 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 defined3f+t suc4oi q3qm3,hg 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 separ* wuyepo;80i6q8uyc l6w7g fuzcpf( )ate protons and neutrons, the total mass of a stable nucleus is alwpu*ui88;po lcuey z0)c fy6gqw6fw7( ays

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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 stab7b -9.jw*cl, iljzscqdb r22a4jsxy)b8em z 1le 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 nuc9 l/ x*fp qwbdsleo6c7t(b: 2nleus 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 nucled nhp6g 3g*robr; o).gon 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 e4lnrp ( re;7ynucleon

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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 nb9( u 1;cpviuk j p /sfirne0xj)*k84tuclear 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 prot4hn c1j- jgmio8(( ub .l16se:tt vdduons i1l- v d6dnou u ig(t j8.1:(bhsmtc4jen 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 penet)g4w11 t80 mgia wwion 8tj5nirate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr ;+jjndq (s ;yzs+vpq(ate

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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)y4,f p kpxoy(q4)ckc

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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 kv9+nwmo1 qp727 mje-a7d j raunown 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 asi01q0 :x)0 fgp.trrxpo4 vvfx

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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 attratv ma9b c2mn85cted 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 atomp1z tzxcj z89h 97m;cod5xq3zic 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 emitted from an unstable nuclf/uuo *u1 *qaqeus, the atomic mass number of the nucle*q uuu1 qo*a/fus

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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 un trj.isrq qs r7yv+h5jmmla 15xs( 598stable nucleus, the atomic number of the nuclemq9.vrly msj r5hra+58jqs15t xi s(7us

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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 represenu8j; dt ufq1l3ts

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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 ancs+ l0idg)w ; 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 an unstable nucp j(wbfpnjuixyk z7 x2:40:r( leus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has th(p9 // kumujn nhq ef(02ka7;vd cgrq3e 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 radioactive3.a(c:kx uhplw ;w:nb decay, what value is conserved in addition to electric charg.pu xl:wh a(:;n kcw3be, 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 radioactive substance as it 8l- a9tearum n55qo(/ 6nlad vdecays?

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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 sing a--f-y f4toyrvn z6kj.ao6)ule beta particle when i6u fyavt-a rf y-).kono-jz64t 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 v4b :;s5i6gof1uy i.vito, oj 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 uses liquid 3m gr5+ssq7a ft)rnocdf1 p7: 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 chambers becausqv70)y i,l(s 6 j4wd +noth*qsz.jhabe

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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 has ho9/a ufutb:u ,ew many protons? 9:/efuua tb,u

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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 ;5qk8x:o9 mog, cvhwpmass number of 14 and atomic number 6 has how many neutrons?vp9xq8 ,:mwk5 ;h cgoo

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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 calclp7+ufcgi i/-wb5c + q v:.*hmury t:sium 39 are 20 and 39, respectively. How many nucleons are in one ufb/q -p: y c lt*iuh vwrg:+5m+i.c7satom?

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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 numbg2 b;a uku8j2zer for calcium 39 are 20 and 39, respectively. How many electrons are in one atomkzg2auubj8; 2?

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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 f:73yeh64maf f )tebc39 are 20 and 39, respectively. How many proto3yf7c)tae h 4 eff:6mbns 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 nnda:5e 5 8bojiumber for calcium 39 are 20 and 39, respectively. How many neutroeio 5dj: nab85ns 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 /y u-yilag +a)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 the carbon-14 nuiu4y )p7hue2atf /d*hcleus?

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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 numbe; m4:v bbjwr:hqx 8)ym+6kn z:vwdz; ir 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 k nbhq 0s(-7xbm;q3wa 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 t ;g obtw8j/1zok0b2 tk :nujtwi1qd/3o 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. Its atomic numberkn2wgsm.8sn czkbrw //4-*5qd/shays: 0vt s is z*y c2.a k0ssn/-/w th/rsb8nw4smk5 q dv:gsnow

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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, whapl26oup f sam ,x5w )hb11pgm*0d*mcvt are the number of protons and neutrons, respectively, in the daughtul d 0oa*h)p1p cv1fw5s6gm xmm, 2*bper 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 .27hk di2 ed5q/ knucwp+q:yo beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-1kpnk:y/ie2o .qh7udc+ q5d w 24 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 undergoes06 wh izyeput0mj4b qcq ..i.f3bv)n/ $b-$ 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 yearskad -9m brmzd8rky8 -71 vair;, how much will be left after 100 yearr18aa drmykv -9 mki-7bz8 ;rds?

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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 dee2xy4shc bhvs :1.5 hk0rv6yhcay this year if its half-life is 247 yey rhvv12y s65bc hsx.04:hehkars?

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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 cergz5 g-jv i.k:xtified 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 they6iw.xwfh 5 +wdt fclx785.z .mzfl.z sample is left after 4cfd 6h7wfzl.+y. izmx 58xz 5l.wwt.f0 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 iodineng8awm/z)gv /:n ) saw nuclei are necessary to produce an activity z8 gn)/w: g/ anmwav)sof $1.0 \; \mu Ci$?

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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 da+zg:l9 g-gh 6ym/d:,nffkhhm ys has an initial activity of d hl /-yh:knfzm :g+ fg9,6mgh$0.24 \; Ci$. 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 casks011b prcw 98idcfrg6et 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 years. Thus we woulfc wsb d1p1 gi80r96rcd 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 tak nokim ,icl.ln /5gch 8k5oa00e $4.0 \times 10^{20} \; atoms$ 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 w-o*e 8 ca+*qujrzn7t $4.5 \; Ci$ 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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