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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 has the least ma,l pb6zz c*3g:l84hb h7odtydss?

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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 jw 9*4odgcin3is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus cs a q)+plqhu:u-95ukx onsists 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 dzoo* 7 -z00h rhrhg)vtr 9e/pvetermined 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 qb9:tpx;9id zrjoe; /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 g,)wcc lfq w0ygw9u d6hatg6)ej58ln , iven by Z, its atomic mass by A, and its neutron number by N, which of the fdc c,l6e9nwf)qw0 )gluhw 85 ta6 ygj,ollowing 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 uns:f52q*sop92m dik3wbd h 4lk ttable nucleus, the atomic mass number of the nucl*sf2 bwdlqk hk:t4d3p9m5i2 oeus

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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 i dj:0suzuyi f 0ty9x*,n 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 stablciyqkbv:nc t 919z:ns25j5 ype 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 with41+w *t j/jdwuujp z;m different numbers of neutrons are referre /j;u muwj4jw1t p+dz*d 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 elementn w:zvp03y;vxjra2c( have 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 4 ietcij+sf6pbao;dsx (j /5whj*, 9tdefined 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 massesjho 9kkz8w 7geatd4aao029 6t of its separate protons and neutrons, the total mass of a stah g a0jko 69dek79wz a42ta8otble 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 stable(a7:t pmbd tp/ 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 is contribas9 ; e 7+d6*eqn/qf4o jjlbnmuted 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 nke+ *ms ick)s4)vamw6ucleon 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 nucm, 5luhjkg9q-leon

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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 statementsg;xxqz x( 61dp4vlf b/9+sru e 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 electrostatic force, the nuclear forcevjse+*d:p gy,fm,0hprz-8 pc between adjacent protons in a num,ej*gd,r pszh+y cp80:- fpvcleus 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 penetratet6:; m5coyzaa l) p1oh

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetraf t0sm uo v4f*zi2m; g/b.sjgc-l zi;(te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penet5d)(d0uhemx l rate

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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 alsos 9c2hcnc e059l izaj/ 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 am y )hf7q)lmhgn2c8o-cn* 2u bs

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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 to a/:w;;jve wiq9f .gwen

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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 m d gyghyn 6xap--7/r4atomic 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 nucleus, the fr e:a+zi lf(3atomic mass number oflf ir3ea :z(+f 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 is e*w qoj sz h*f9n8)w2pkmitted from an unstable nucleus, the atomic number of the nucle*9fsq)pwzjhn82k* wous

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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 repr/ymxiw6lk )c.c-2 ysiesents

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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 ray?qmwt,5 rd:v:t k6kx+v

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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 *n e(tgg*l: o:w(gnimunstable 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 maitdtzdqtk, h ;l4cfd;j *o*1a5 4vk 6pss?

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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 i9zr irg4)c w2oga,py cc4ja 5/s conserved in addition to electric charge, enera oz9c 5)4j/, gw4cgrpiyacr2 gy, 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 radioa q3p x in):l-jc*s7 zph/9dsjmctive 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 singu* j*one+5ea gle beta particle when it decays. When this happens, the resultin5j*enagu*o e +g 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 field to curve charged b bqrjg:)k02w 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 hydrogevd7ro y fyg; 40yig3;gn 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 replaxq7sye.aj/o-r zg +93 rp(uoz ced 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 atomir7x fkv bf.aqn*39 s6mc mass number of 14 and atomic number 6 has how many protonxm7 f *6 r.ksnbvqf93as?

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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 n70s6xw*cq v)l -d/ sa7bcrcermfce3, umber of 14 and atomic number 6 has how many neutrosm/c cw,7er 7ecx6-a)*qbrcd3f0l sv 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 for calcium 39 are 20.h uvip)d fe0z2n 7u;u and 39, respectively. How many nuc;dnp7vu.e zf )0uui h2leons 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, respecj q rst6avqm8/k*gt. w(tq14htively. Hjvs4ht(mqq q k6t.1t / 8r*gawow many electrons are in one 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 calcium 39 are 20 and 39, respe-sbqac 7jxkzp07h d 6.ctively. How many protons are in one ata .pzj07- hdksc7b6 qxom?

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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 numberk./jphc+qu el io:w4- for calcium 39 are 20 and 39, respectively. How many+4q /e juoch-l wp:ik. 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 number of3ur.zvf eg 4v+ 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 nucleus?w01cj tq-hc2e

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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 numbtsd.jb/ p,i**mcq :w3m7r.wojypg8 w er 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 of 9szx )glvnf)l641b xw $^4He$.

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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 requi8k *p-lr/ gsiyred 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. Its atoye kv y)f6e i*i7*knq(k)bms2 ld)d*vmic number is n6b*)nfyeq2id7 ei ys*k d*)v km k(lv)ow

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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 2-ri htxnd3 7yit undergoes alpha decay, what are the number of prott i2h3rxn7dy -ons 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 decays to a nitrogen-14 nucleus by beta decay. How much eney.;- ln qqdy db( xovyqc*5dj286, ohhrgy (in MeVqq;n,qy*x5c (2hj y8-oyhv.6 dbo ddl ) is released 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 numbm6xbk2nht/9 ovw8k5l er 6 undergoes $b-$ 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 rv-qea9dvw06bles,). 5 g fnube left after 100 yearswqv .0 fg)d5- sv6aen9r,uble?

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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 hvlkc edx c;*u:ek1x5 9vg6+hd alf-life is 24k gu e*d1v59 x;6vhkclxd+:ec7 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 certifiee4/qrv2yd7 dgd 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 tak 165 ,)rc8uq3a .jrkb6djulw0nhmshe sample is left after 40 ma wc)5 j,muqnbh3j 0ldk6r k6r1a su.8in?

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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 nuclei f58bal+ jj;ldare necessary to produce an activitydbj;8l a5 jf+l 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 ,s iqsd ,5a bwm2y4*;ynva7fl s+hda9ul /p5gan initial activity of gbala, m, ;ivad*5+p q 9wy5yshn/s2 lsu4 d7f$0.24 \; Ci$. 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 carbo/cfsv1n c cf tf2zy6.pv ;-ib+n-14 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 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-6izvytpv2/ b;fncfs1 + cf.c 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 9obht3o8lxz-fsv: u 4 $4.0 \times 10^{20} \; atoms$ 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 takth z kq:,3 n)+zr njg8pg e/+z.qs/esbe 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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