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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 particles.rn0 q3 wsj2qx)jjd7n 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 i )45fcq5nu jris

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consiy c (u42v9bevx;f 1 ;cqkm,rctsts 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 numbrqbjsob2p,x ,5rzl9w n *bi3-er is 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 .6z6v4nyo)x7ma6 ww+jg(6tbi ( bgxz xcs2bbnumber 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 neutrotdp 4;6b :kwht:2rfxp1g4pz xn number by N, which of the following isz4ptp4dx rh tb:wx;fgp61 k2: 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 nucleus, the g *vxhy gycykw 1;:+9z 2fhx4datomic mass number of the w: z vgx9+chf 1k4*g xd;y2hyynucleus

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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 .b.fem r va(+ f*3hssjan 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 iy-udt*362hsc m (rksbecause 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 atomii t)auiruc22-c number but with different numbers of neutrons are referred to a-r) at iuci22us

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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 nuclei withp216sxe 7mgvna 1n.ft

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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 p/9c3 fs.dclk)u n. y+dfeb) eis defined 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 sepagpv- 8.w nmi5mv(jftrc1a7 /+ojk 3tbrate protons and neutrons, the total mass of a sa7 /ov+8wvk t5m f-jjcm. t1br p(ngi3table nucleus is 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 stabk x*fj7ll4; mfp7lw2mba-: l xnd6)zyle 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 lqswn,bwl9 qby++/6 zis 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 pe./ hpi,i7oces5 oi8isr 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 per nuc*8a a.,any.94 p-tryn x 0xhz+fhfpgcleon

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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 conce5r6sf s9h spzg,o d.h 61gols(rning 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 electrostatic force, the nuclear force betwv esby;1d-.sq een adjacent protons in a nucleus1-s vqe;bysd . 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 penetfdo 0ltes;95j 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 penetrat ldq7qx,loh 5m 9ds-loc54 bv4e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratwux: e gur,9x csubk/,, res*qh4)bf*e

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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 knxqg3k494w x2q 2gtf2 qog621juknk caown 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 knbqnfbnn 3+j12own 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 beceq mm0 0v.r/,i .e(7vhmfslygv og.8 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 atomic mass 5 ut 0lna69yjnequal 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 particl12.b yps 8 2t3,t5wfasv +bpceau;zqbe is emitted from an unstable nucleus, the atomic mass number of the nubw;,sebp.v t2py 3a 2qfza5 t1u+sc 8bcleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particl;djurju v)8.ah*f 9 k2/p3xljc dx:d ae is emitted from an unstable nucleus, the atomic number of the nflh u 9*dp.3xjd;r/vj2 )j8:ukxa a cducleus

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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 -efzof i /gm)i4u)szk-g5s .:t 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 gct au6ko :jgvx29/ +wxp8w(i 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 anerf349j 0b1uvusu kl1 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 mqs(84k 4bv p:5og- vt ql2tyhbost 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 de,vj*-wk f bn/b;-jvy bcay, what value is conserved in addition to electric charge, en*jbwn - v -;bybjfk,v/ergy, 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 iiqljz 7 r/-q.et 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 emia4 rdcih l.5mg :;*hh;wxuuoi o5)r5bts a single beta particle when it decays. When this happenur dbi4hcgo ih*xam);h5 u;r:.55l wos, 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 magnetic fig0o5bp 50jwdgyf0(w+p kg ;tqeld 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 use)eif4;c1w u mos 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 replajk c 8te4tu0n:c.9qopced 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 nugyhnacxi8j+6z5: r6 , xzb9a rmber of 14 and atomic number 6 has how many protonsaay9jrzcn h6 zigxr65,+ b8x:?

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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 masm aakrb;028f dhve, 0ks number of 14 and atomic number 6 has how many neutronr,mk0v h;2 fa0deab8ks?

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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, respectim fa,f( y*j7vfvely. How manyv *fmj, af7(fy nucleons 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 calcium2xhl xak: 14nwcqk)v /.9 nwgk 39 are 20 and 39, respectively. How many electrons are in onen 2wxqkvw:) .x 9kh1gakl/ cn4 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 mass number for calc9s3 17ud7qmwo8m0 iag,yqhe bium 39 are 20 and 39, respectively. Howbq8msq 0e di7y91m3hoga wu7, 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 39x4 ig2us7r:cqhb2k0c fd,i)jf ij.5h, respectively. How ma: ,xq.uik0g7d2 )rfihjfih5cc4 s jb2ny neutrons 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 numbe q3egavo /d 8/)eb nzd9cv2zw9r 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 in the .-v vae:m6xn dm2 aaxuyp 6n/hskl728 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 haa,bxn* adp kt)n p-+k5s 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 bindingji : w: 31fogoke-xrd2 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 mykgvoe)rg r(g cyk/2.6 -1yuremove 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 numbeoetx.,kbirf3 r1* h 0ur 88 goes through alpha decay. Its atomic number is nowxft1o r3e0i., rb*ukh

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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 afz+ ehy, -- vgyts8:pand 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in tgy,ef t h-s:azy-pv+8 he 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-:7 uw va4: iz;e-h,pcqhws ek: h*sdt*v,xjr nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 rww4h: tz, :j-,*v hhxk d:uespsa*c -iq7ev ;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 underza0l7 lt iabig.zkg s+1)f19 fgoes $b-$ 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 after 100 ylup ,3mt2 hzx)d+b qg3ears?3ph3q) m2 dx, lzu+btg

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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 wi5e 2c yq2biur0nb)0eb ll decay this year if its half-life is 247n eb520q r0iecubyb )2 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 was3jx*0z,co /*uwf+ni /jdmgzx 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 1gu0l eddm3k tma5 .)c a7jz mh1-.t- 6ktfnzb/0 min. What fraction of the sample is left aftm03 d6zk.tza-m 1u 7kc 5h/.enjlt)gm-tbafder 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 obho abm6v wf+ :4ah83is 8.0 days. How many iodine nuclei are necessary tmw+vhob 3a a:o bf846ho 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 days has a9:tk+ne wql3r3+ksnen initial activity of kw q rn 3le+3:ek9nts+$0.24 \; Ci$. 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 caskj/z . oxye2f0 tv,5tzoet from an ancient burial site was found to.05 tz ,fo ytvxzej/2o 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 takigt7l a**jm bb*8x 3eux9 od1ye $4.0 \times 10^{20} \; atoms$ 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 5a8i nlxhkkg95 nn3r0b* 8ui w$4.5 \; Ci$ 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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