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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 hasuzy3o.tj)u73i9bus w 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 +e3ae+jt6okfz*5gyj z yz9f 6 is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleusth p+ry+zn*secnk 7zc 1u2xw4+o7cd 9 consists 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 d4wlt lgrdudug(,k6g .3:r6 faetermined 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 dx;g vo lru/bh:gn(4oh9t4jo6 etermined 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 -9*mxuc o.-vpbs4xrbnumber is given by Z, its atomic mass by A, and its neutron number by N, which of the following iobpbr.9-um xs4 c-vx*s 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 anpru g66l m2,tg unstable nucleus, the atomic mass number of theug6g2lt, p6m r 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 atohrv s7m g6eki8bfbz( 1k/ -ow1o,+dbr m 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 bec c,/ 33ygnbnkcause 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 bu q3(nhrh0n -kbt with different numbers of neutrons are referqk (r3-nhnb0hred 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 element have .7e4s ibwnq5lnuclei 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 dtjyk 7-i(1p4tx ay5akefined 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, the kyj- dyx51k.nrb cm 4:total mass of acr 4 b5n-k.jy:kxmd1y stable 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 stablemjy/1k x4 m,yv 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+h; z dmdzcxvnh,.1 n+ a 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 nm v*gaq*;9 qnwk+set/ucleon 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 nucleon9farn 0-w-*g.xq mbfp

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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 statemen wj3z8 n n7;kzd00tlz:zyo1 wkts 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 force betwee0nou3:o z/sron adjacent protons u0s n/:zo or3oin 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 penetezeff0 .gy./2 suq0xe0. qzzmrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetr5 + ahth g+ v-2vlk,vwnw7e9qxate

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetrbz*-n8wli0 gk ate

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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 h(9sr* h)ektd9g,jh etr6ad)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 kno 2vyldu*,,e xtbe+pj:iue lt.s xr);,wn 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 be aio5e6(zz19 tlxy0hr qq q(p7attracted 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 equal totos2ee3.d p b6

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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 b.euwd*2r2t 3a3y mbkemitted from an unstable nucleus, the atomic mass number of th yd e3b.u2wab3*2 tmrke 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 emitted from an unstable nucleus, the +-yuww u1i46 gzu4y- lpdh,taatomic number of the nucl+-ulyzpaghty 6 ,uiu4wd-1 4 weus

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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+s8ypz 2(2 v f+yxztaiesents

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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 go/cb:u8q)jm6as/jj3 gm(* axng , sb most nearly the same as a 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 ane;m: 6oq( iteqgb,a8m 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 most mass?p+ d+ok/xvwmd1nq2d te 7f-a:

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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 ou3 4yxus n93dnp 2oc,af radioactive decay, what value is conserved in addition to electric charge,2uc n4d93sp ,nyau3xo 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 substancdz.)ve qr8kwhkveu1e/;(vc 6e 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 single beta qa ,/;t5tv3 kvopuq3a particle when it decays. When this happens, the resulqv, p5tk3 3o;aav/u qtting 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 +q (xag+6:qh axcc t p0ab0tu/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 th;1wv h slvq+i6at uses 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 replace1hj9+n c,er qod 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 atomic number 6 has how many proto2 wc7ntju8vj .iq1+nvns?v+18j. ci7ju2vq nwnt

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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 izve 34. hgv +:dih.)vxx am8tnumber 6 has how many neutrons dx.avz4e+ )ixt .vh3g mi8hv:?

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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)dr 4 vp:mt;s zlzag,1, respectively. How mr zvp 41z):smagltd ;,any 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 calcium 39ia 7z q 065 )w7k6non( xlcvmav2r-xpv are 20 and 39, respectively. How xcr0al7av)v wnmx i2ovp67k5-nz6(q 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 8k5e a0aul ys7a ekf))calcium 39 are 20 and 39, respectively. How many protons are in one atom?sfu yl5) ae0 )7ae8akk

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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 numb9zcx,)hxj x6 jer for calcium 39 are 20 and 39, respectively. How many neutronscj,h9xj6)zxx 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, neutrons, and elech6 la-(yhrxo a90i8*whci y1htrons 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 carbonulg 8 b lim*8x(:bc6s)5rwg rq-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 rdv.xzo8b hpjd8pp9 f0,.au5 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 bindinglurgfi/ 9saa x)js;:8 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 r ;, krspeo,q9oequired 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. Itsm wi- cq.y+4zs atomic number iszyc+i m-q.4sw now

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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 nc bevkx( z:m5i+p 0l+alpha decay, what are the number exv:ni+l05mb ( + kpzcof protons 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 t,6 bptk9but( )gt 1ttdecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a masskt(u,ttttbb)p61g t9 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 fea v56l.k,/ e s yi4qmonu 1x.h)af3nnumber 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 ddzp- ri 0*le5q l7b8bis 45 years, how much will be left after 100 yeard 0idl8p* bl r-ez75qbs?

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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 24d pc )uak5k8xpys9b7cz9;wo67 years?65c pkxdw y7p8ok u 9;za9cbs)

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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 certified rqjv5*4 0ltlo 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-life8 vhvtrz:p 6s/ of 10 min. What fraction of the sample is left after 40v8 zh/s:rt p6v 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 iod:dd;qtmad /u5/ai )odine-137 is 8.0 days. How many iodine nuclei are necessary ada qo/)i ud td:5d;m/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 witxi y0;/qu (rgrh a half-life of 3.0 days has an initial activity of 0qgiuxyr(; r/$0.24 \; Ci$. 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 casket from aj4 ckw7e:g v kgtc65nyax. /m)n 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 w4)6gemcwj/ y7:kvt n.ka g5 xcood 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 takytu jvzv3 s8vy+m0d8 j;8vz o0*aauq (1d e0hse $4.0 \times 10^{20} \; atoms$ 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 takfiy(xlvk ; hpm-y, 6j;e 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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