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习题练习:Physics Unit30: Nuclear Physics and Radioactivity

 作者: admin   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 th *spa :u0 kghv0ug4q6uhi9p*ue 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 ismu(bh5t (o3u5a p*wf ,qekb,;kqw nr1

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consi3os ub dls6s:627f wpzsts 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 determined by the numbjx,ga/me-5x-bi drp4 er 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 thiw *; i--fbnuakmyn09e 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 given by Z, its x x +py--fa6ghrg y;don1*t-satomic mass by A, and its neutron number by N, whi*1 y6-pxg+g- f ydst-ax nohr;ch of the 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 emitted from an unstable nucleus, the atomic mass nuuz ,cv+7nrb0u/pdz0r ,k:z e zd74umsmber of the n duu 0 ku+ z,cpvns74zb/ ,ez7:0zrdrmucleus

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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/tvnj.3 l,c j4m c korw1k6jf. in 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 sta70/ec ,byrg.qa yyny5ble 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 a6cdamx. 9scql))q 69qk j)tq dtomic number but with different numbers of neutrons are referred d)k 9 lca6)q6).q st9mqxqcjd 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 nuclev) 3;pbhda :fodhu 0o0w16)f2ykuacvi 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 i7s/eh1 syha3 z o:4bug-je,hdnnl*5vs 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 separate protmvn5 w6lr ec1e*akyfzos.01* 6u .n vqons and neutrons, the total mass of a s 60y1o.rufw.vnz1*sqcmkv e 6la5 e*ntable 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 nucleus, energy ism5g l8.oec+p ,bz3vc2pa bal4e m4h m8

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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 g:yuf 0hpz/4uqri 5j 6contributed 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 n fgajm;o9 80wvc ;pfo8ucleon 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 nucleo0hls(dn s6(wm n

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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 statep1jfdek)h8v d ez,2i: ments 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 j:c bk.y6it /lforce, the nuclear force between adjacent protons in a nuck 6ybl/it:.j cleus 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 penetrwy5z lf p n3qvvt6qp5k;c)75bate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratb ,2v u ijqu6wpo5wfchk2ulm77 f:7i 9e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetra(hr(y8dc xpfp 9vf*:xte

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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 knojr u6ffx yu6e+3dd w+g(knrdb+l:35l wn 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 n:5sztdlki 9xma+ od7 1 i(*eoas

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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 t5m zfdh;s:(tbe 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 equal8 pvxi44k2 yzu 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 unstablxv77sx :h8u age nucleus, the atomic mass number of the nucva:xx7h g7u8sleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha partic(wk gmlgd c7 a0b)o(0ile is emitted from an unstable nucleus, the atomic number of the nuclemo0w0cd7)(gb lg (i kaus

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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 reprd t 93w bpseqjlfmv;x un)03:9esents

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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 8j4y :p9dbmo rthe 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 from8)is: hn*lcrs an 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 massuxg 1 wgj1xn7ir iw+2rm 5)pt4h;uv0h ?

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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 radta gi)-mr/2 -t-v wownioactive decay, what value is conserved in addition to electric charge, tti w or-g/2w-n) -vmaenergy, 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 rdmpg.dx m w803adioactive 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 ,si7n +cohl 1jd dz;t)a single beta particle when it deca,zitod)lj c hs7 d1n+;ys. 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 )fj t7 n+x2z gm8 xuxn;8ubz2mfield 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 hydrogen ispq6m +wsi s4pv;9w)txi7 )y bu 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 .p z2 8y3 9mqonzdd2vwchambers 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 numbe5ixlup.x q-.z /ijt e-r 6 has how many protons./iux q jxti5p-.zel-?

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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*pra v-v,,dhj 6 has how many neutronsv d*r,avj h,p-?

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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 fob4 gw3f vn:s / j4ey6t6:ng2 asukm(tsr calcium 39 are 20 and 39, respectively. How many nucleons are w(mn4n:a 6 :vug sk6/tyt g342sebjsfin 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 areo/,d/ je,z,l 3kurv 4c1rfelvsgr36k 20 and 39, respectively. How many electrons are in one a/ckou,vls ez/ 3jr6r4ld ,fe1rg, 3 kvtom?

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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 3)7 e-hh u *+vm.gyqnye9 are 20 and 39, respectively. How many protons are in one atonhv-he7egy +m.y)* qum?

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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 and3ultm+hyso (n7 -l :g9ygv3o v 39, respectively. How many neutrons are in 9(v-sooy v+n 3:umghgl7y 3tlone 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 electjsg51m 7stfp9unk b 79rons 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-f/i:5qg1fkeq6 h /j ng14 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 15ejx+ck4v)2 wp 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 :y *rit/bj5zc 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 remove x qf50sq yg*c2h, ijs4one 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 alphg k7d qiye+*um 2z0xncq8- x+sa decay. Its atomic number is no2 yg *ime8 0+qun+ xk-qdz7csxw

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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 249qkl/axa 9 j yl/gd(hnb72 ck:/ nucleons. If it undergoes alpha decay, what are the number of protons and neut x yk/qjana/d:/ 7l(clbg 92hkrons, 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 nitrogenctu jc2yg /f9r cng3z033x )wx-14 nucleus by beta decay. How much energy (in MeV) is released if carbonrfxz9)jgn cct 332y3 cgw /ux0-14 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 number 6nyom(kjh2od0 gz h8-2jqqc2 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, ( 5ied2 /rc;cbjg:wv jhow much will be left after 100 years?cji g j5c2e;:b(wr/dv

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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 thx :ah b6fe1lmxs7j f1huk7j ,.is year if its half-life is 247 yea77 hbkemx6.jjs1,af1 xhf :u lrs?

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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 certifietzt;tvall7fyg. q52mw oes- ky(., h(d 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 the sample is ,/rh 1su7r,tucmbl ibk +4(xi left afte ,m/,ks7b1h xibcu 4rlt r(i+ur 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-paaax*1aq b j46nl-kenqp7lbk+jy 8, o 9o1n+137 is 8.0 days. How many iodine nuclei are necessa, anlno6*o aqqj1x9l8p-+y n7bbp k+4ake a1jry 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 3.0 days has an ppp-v uf7m8ui p,:hj( initial activity of viuj:pp(,u- f8hm p7p$0.24 \; Ci$. 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 woodenb2r8nmnn ,rfg2xp0r .t et43v 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 g2rbf038.tn4nxr tp nv 2mer ,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 take y+;q9+w;omm 4f .z sqkd p1zup$4.0 \times 10^{20} \; atoms$ 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 awg 2;md2ni(sq0i c3 qs $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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