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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 particreg d6+ mqr)b1les 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 ir;07 uglg u 0xuc9zwp cn n:i),;d0isns

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistsy*c qj,;xklbjtc :2v5de vm0 9 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 deterjilx- yi;+nz8d mw0ei5*/l x nbago3, mined 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 determinecjy z4v0p(*gh gsvc y1w2x +)rd 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 given by Z, its atomic mass by A, and its n0 jo+0ymoa a0leutron number by N, which of the folo 000+la oyjmalowing 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 nucleusi8k xyq+; qr8vuo q0f+, the atomic mass number of the nucle ruk y+q8+ xvi;oq0fq8us

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protont4mylp rla/3( s 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 stable n,r: s2ewf.hpdjx19 td ucleus 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 wiu f.c gz u,apz*5.8))zn5apgmu ys4vzth different numbers of neutrons are referred to nfy.a 5zsvu,.4ug5)cg) *amz p z 8pzuas

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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 :3)kyauws )mk/zv6r s 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 )xid 4 qwi1xl)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 protons and neutrons, exw/j 2j5uhe3 ;p1bjy the total mass of a stable nuclejxew 3j5 b/h;ep1uj2yus 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, ened a-(8 abjpyf,rgy 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 nucleuw)eq;v)2z zqd s 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 nuc0q h .b81nfxshleon 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 nucleon*er 2rzzs3 + y i/wvrxch),4gn

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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 stazwgdlx 8h*pt2f(5u,*;jg z zxtements 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 between adja3ea*wvby oqj- d6- 4jwcent protons in a nucleuoq w ywveaj3-b dj4*6-s 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 penetn/a :xzq6k9myrate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratmk-skcuy lp- ub2n4ya7rz09: 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 penetr( h2h u ap9mnem.5n1erate

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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 as4cb1 p ip8pn5g9ey3rs

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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 ,,59zteoe bl *3r cshras

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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 bef:pn5t.4v anh 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 a,9u gbfmb(easig6*6a * nmq.hn atomic 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, tmjqhkm9k99-tx3(rhkl+; y kuhe atomic mass number ok(+9t93kxl- j;khmqk9y uhmrf 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 emitted from an unstable nucleus, the atomic numbizq;bqh+-2mksv6r dy d 4nx 2c(5o3gver of the nucleusyq 6nx c5 qidg4+rdokh(;m2b- 3sv2zv

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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 - M amcr9q:09lde a) 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 near .36xsk omoz(/b6 knncly 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 an unstable q3rvcb1 z.s.cb,mum- 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 tw/u w/ems2 b0lhe 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 conserved in addijosd47yop bnfos 4w8sc6. 8;w tion to electric charge, energypsc f yw 88b6ws.4dosoo7n ;4j, 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 substam bg 2ue0q2haha;qo9 8nce 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, carb:sg6.f d 78phmh jn:wdon-14 is often used. This nucleus emits a single betahjpdghw:.f 7m:n68 d s particle 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 mag5m ob(e amq( v1u.i)jynetic field 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:zr)3d9 /wsx+ jr-kgoe0 x81cecq hrt s 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 replaced by bubble chambers begmg; 3o imj/j6,k wnsg t2+1a.fx4xudcause

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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 nuz ixwc s+vx :,,so3vj8mber of 14 and atomic number 6 has how many protons?xw8 +3j,os,vv:czixs

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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 many neutrj1a jph 61ngl5e, ;kzdonn5;1 ljga, dpe61kzj hs?

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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 marqrx3 f i mtqs9z,k81(ss number for calcium 39 are 20 and 39, respectively. How mans rr3i(1,fkqmz8qx9t y 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 nu/m5;u+jo8zro3 ) 1wey c,3wmrgxb qngmber for calcium 39 are 20 and 39, respectively. How many electrons are in one a x,ebo8rm53+g r /ywgj)n ; 3couqmzw1tom?

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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 cal6gb1r fl ynr6/ 0xv;amvue)4 lcium 39 are 20 and 39, respectively. How ma6x1u6meba v4 grll ) ;/0vrynfny 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 39, respectively. H6q;plqbs:t ).wo)pi3 h 2k;wm 9jnqz fow many neutrons are in one atom?inf pwpq).q3sml); 9jzwho;2kt6 b:q

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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 electrons 8 acn-+u 9q0ut, dly x2yfbr9kis 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 nucleu 2ybv;acl(ion+)obj1 n,l mq7 s?

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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 hu6qc;. 9zd mypg61wbsas 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 energy okt4(ads3 z+* w muslv)f $^4He$.

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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 6 /5it xjlrif;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 througw;gndmvbu*4s1h 7l0h h alpha decay. Its atomic number is now sngmlb;huvh wd7*104

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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 undergoj-vr 1 n9d gv5m9jhpv4es alpha decay, what are the number of protons and neutrons, respectively, in the daugpvhv9r j-gv15dn4j9 mhter 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 ,u7;s) jhwk4jz we* dhdecays to a nitrogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 1)4 usd 7whwj,kj ;hz*e4.003242 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 6 koe 3q7n ldue4d5 +,mpundergoes $b-$ 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 .p, (we)r9zjd scxkx; 4bda7zafter 100 years?.zx xbpa), jse(w4rk cd 7d9z;

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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 24p/,gqqce(9ff(0 its p 7 yeq/0ci,p sf( ptg9 q(efars?

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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 at tc u c5o79a6y .yre.zp$10 \; \mu Ci$ 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. Wha hcr;;r wzwa-tk2lycryr3zkim; 7 : 76a 2gr9rt fraction of the sample is left after i9hk2g-; yr3cyr;;rm :rcw 6 2 azr7alkz7rtw40 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.rfre4.1x l (pv0 days. How many iodine nuclei are necessarylex (1rp4r fv. 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 witq/jdekm6+ 6rxv8d7,t7 u 7xmp qfrb7nh a half-life of 3.0 days has an initial activity of m7xqnrx8mp,6kq d7+ et/vu 7b76r fjd$0.24 \; Ci$. 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 m k5cg4p1j)8m.hg tran/u eq;reasured 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 frotekrm8)nc 4a5 ggupq.1h / jr;m 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 tai0dfv l(rm*tsd ,.9zpke $4.0 \times 10^{20} \; atoms$ 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 9o+sp o5twn d8$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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