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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 particles has the leas7mdee: 10z2jch edyh,t 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 is w20e*p vdep7cibm3d4

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consists u( ky:18- fu.rjxyy zhof

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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 number qf dtbr1x e2*3of

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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 determinedj /,f2pn ym fhf(k:nu: 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 ys,4yt2jy(nl1uoh:l1ob8 lzs3m4 t a given by Z, its atomic mass by A, and its neutron number by N, which of the following is correcyt,1lus 3ly h2(bja:zsn1 oy8tml4 o4t?

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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 atomic mass number of twhqi xflk18(oa ,jppby3)-2 wh3-,jkhpw8f bip (l1q w o2)xyae 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 an atom iis 1jyeh4,,4lw+wb j+b0q doz3ukvo5s

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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 n6m,9w42cs9i bzhpp rw6zy- b of a stable 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 different numb d5/*taog-hfbers of neutrons are referred to as f5/b godha-t*

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an elemen*k/ ky,g 6mj 74sgzn; dy,qgn :sq1weht 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 defineyww-*;uyu ,t5 gk; dkzd 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 separate protons and neutrons, psiz,tptb+a8+f 1ns0 bc -y*dthe total mass of a stable nucpbnd t*s1,+bisyazf8t+0- pcleus 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 vw7eq.+h1d9/fdwg knform a stable 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 con lr,*ikj.x4 swtributed 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 nucleon hs :e.os p:t3xis

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy perbysuk (ik45g;z 52nhu 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 statements concerning the nucleax8n,wls72 oat r 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 electrostat5-c6y dq 6vl qgfv+:dbtb g-kfif48r,ic force, the nuclear force between adjacent protons k yf4fg8 6v v+icld:q-t,brg6fb5d-qin 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 penetrt(t2c0d 4h ydmate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrate1vie/y9 zpj4n8tv k(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 penetrathm ysea9laudqd5rer *2 1z7-6e

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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:obb 9e h(bwfg18odr9 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 knnaws4wd3 o.b f (j3u6eh(irg-own 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 willnzr+2cfa-qde j0s- x/i q*- pl 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 atomic mass g.mm7/i d4qx q3 ;6mzkyl3spvequal 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,u2pk)yf rdgbfs +z9mzzr*846 the atomic mass number of the nucle z8u4s f rpm9z+6*yzkgd 2rbf)us

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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 ua*omc+tmbp (t d9qykhb m13 ;,9d7hzpnstable nucleus, the atomic number of the nuclc pyb ,+d3qk7mtbha d9;ot mh9m*z 1p(eus

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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 931.0,ubm 0kpj;2 /dp * eq7odr1;rp qysnkqn3c9u5 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 gammatir n t+rf*6 7n7x9lfb 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 anti 09- 1ok tmkl1d*bymjp/o*l 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 them o7,p ; wryhr6f wi.cy5b)zm ppi,8y2uds-.u 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 conwry j*enb sl.(wq)8;f served in addition to electric charge, qfwy nse*; b8 w.)r(jlenergy, 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-lif+-h:e )wqwr+nqzz ;dus6uzwr0 o e1+d e of a 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, carbon-14 is often used. Thisbr+ rmlsj2e,4z ur(p5 nucleus emits a single beta particles (z r,rjpelm4+ubr25 when 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 magnetic field to cu82tbf0op ug6z .xsentesgo : 5d-vg 8)50e aferve 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 hydrogen z*36b5ixlqe 7)mw pitis 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 chaf6n7 p)vh i8 r se6lv1,i2hnfbmbers 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+ p;vms 5hifu) o wr7xbkp766c mass number of 14 and atomic number 6 has how many protons?+si7kvb 6o5u6xcrwm fp;7 h)p

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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 14 and atomic number 6 has how ma+ -ljv: lnsj1wm(v jwf 3e-v+9nd7x swny neutrons (++ :wjmv7v-wdx9svl-jes3 jf1w lnn?

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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 aucu f2tf2 kl z24jmk5:nd 39, respectively. How many nucleons are in ff umku452 2 zj2k:tclone 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 calciuo9ko j00b5vzb6k)7qb8khas dm 39 are 20 and 39, respectively. How many electrons are in one atok hk0 7k8z)adoov6bqb50j 9s bm?

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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,/q vn;y,rge)j*l .rea respectively. How many proea/gl)r.e*,jn rv ;q ytons 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 39, respectix27lcugg;v) nvely. How many neutrons are incgxgu l;v72) n 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 electhex ,e qlz.mffr:9; mn8cb( y3rons 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 carbon1n x vd -9qbc:l5w8r() zpp *ghoavg2e-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 1z8q g-dafhvd,(1ls m /5 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 enero h;)1n qx/zdfgy 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 removec +e6w dua+l9y( 9 yo)tlblbz29h jqm/ 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. Itsk kec.cmb/y/: atomic number is nkm/c ye.:bc /kow

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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 fu 4lg ;3gv.jsundergoes alpha decay, what are the number of protons and neutrons, respectively, in the dauf4vlsj.ug3 g; ghter 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 nitrogenzrmmtzvceaqq3b4+wd 8 :qo9* f* n:t.-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14 w +tr 49tn.m**q :cvz:dqo8 fqzm3aeb.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 n jo6bry*n*4flxoi 7; yumber 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 muchalgei9 979 , c3uoiwefx .o5jq will be left after 100 years? 9x93j eoewlf ac .uqgi9io,75

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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 half-life is 2uw/za5,5)qcom dr n d14r awn,/d5m15dzcoqu) 7 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 certifimvj j 3-9m q6em:0tc sf5huj5jed 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 fractionrxie gxn1 w(:4*o04kgdkz1 di of the sample is left aftw4*i1g keix4:gokdr(dx 1 n0zer 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 is 8.0 d 8m9 bq*)c9nvikg+ua)niuie/oj v+ k7ays. How many iodine nuclei are necessejb i9+akqou+ )g /u8vi)nv k7ni9*mc ary 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. q/:lqdy2pw(b 0 days has an initial activity of wqpy :(q2lb /d$0.24 \; Ci$. 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 ( q mrrr3;lcp+casket from an anp 3r+mqrr (;lccient 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 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 take7u. 9 h1docz9bi n-6j,.vsmnrze:q ej $4.0 \times 10^{20} \; atoms$ 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 tak m f4q;hge w1vkx17n:w fr4f1ce 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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