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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 the lh 2xw8zfgsof3d9o (.feast 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 ;2d(t zo e-uq/gzg 0kyis

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus jv9 jux67*r7sw mdxi a,jln //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 -r. )yea*yhow v(p 4i+2ubr, (kxpqio determined 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 the num)e 3uq esy+8cen( p/rsber 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 atomiyk. n6)kk 4nppc mass by A, and its neutron number by 6y kp4kn)pn.kN, which 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 number of thz 2pocbxy2b),e n pxb22) c,bzyoucleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protont w4-r1s2ii wts 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 p l( -h /4xeb4lpvxhh)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 numbers of neudh vn*54evbi ,uzc(u9trons are referred *(nvbiv5cue, z h4u9 dto 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 nummzzr0u)r aav2dr.* 6clei 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 unitj++bgg:qrjr2 y*o s2l is 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 prov / aunuf*:63zww0lk1l /ql .haw-lbatons and neutrons, the total mass of a stable nucleus is a- k0w/llazwnfqla6b13w hu/:av.*u llways

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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 nucleul etgb1i7e m91;szua l t+)u;ws, 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 +jvw (,*mx*r iivzk(w,j (kitcontributed 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 nu;a2azqy)2srf q m,uw0-)d7fk4g lz .vhw s(gkcleon 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 nur7+u +hgst ql8cleon

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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 statementsa0y0ei3zaag7r8o , hv 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 adjacent proton4eu5t+g e nc9r8zxu.pey38fb)k5v5 8w scd xn s in a nucleus isctu+b5ecy988x wnespdn)g 5 zu.r e53x v4kf8

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetratpjpc+q7 )dm;7.vt +hckph+o je

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetratee(c s2 e7.0tnn tm(xjn

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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 (z+)l9 kp)+ zofrqs8yuewbb6ate

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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 knod 9dbxg 8f1f.4ux,w q3cjue+ *.iuoyxwn 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 cn(:5 ,ueowwtkg/ g8xknown 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 /7,xwg:fjfb133ybr5pe ano a 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 mol0o68zcbhrqg:cz) 3ass 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 emipexd rn1lh5c: e:p j/0tted from an unstable nucleus, the atomic mass number of the nu5pexpd:h /1n0 jr:ec lcleus

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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 ate p3cyw 50fr)zomic number of the nuclp)5c0 rzfey3weus

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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 93)m dogbsd83d;*(k /wey bjx ;f1.5 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 :c mqg64(k 9av2u afdfmost 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 an unstable nos3a1/e k v zw+vv-m2;bxv o6uucleus,

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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 maswpnb2xi7f+( i s?

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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 s ihsb) m47xt4decay, what value is conserved in addition to electric charge, energy, and momentu t7 )hb4ssm4ixm?

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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 substl2jkeepb t,:1e:9qnzance 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 kdi29. hlk:rfbeta particle when rh :9 i2dk.flkit 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 curve chargt 9hz5;pm0pmho2 qg/bed 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 umwwh+2o/vt 1j ses 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 ,nrg ko-h0r4y replaced 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 numberx5 c q cx2e6nx/l/dy(m 6 has how many proton(m5/l cx /2q6 dxnecxys?

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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 b2le 5nb dr+k0ls +6axnumber 6 has how many neutronsk 2lexb+n+adl6rbs05 ?

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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 andaot:q w;u)8xnx* w1 /xszgoi+ 39, respectively. How many nucleons are in 1asx/zw;x8t w igoq:x+u *n o)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 numb+:knrjox , v hk87d.ajer for calcium 39 are 20 and 39, respectively. How many electr:jkjnh, adx7.v+ ok8rons 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 391xcvf wvm9)tu4d;on . o ;pn;y are 20 and 39, respectively. How many protons9c 1.) n;yov pm4o;tuw; ndxvf 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, hp0- stfpulm* kk (f8)-qiijk v3r(+mrespectively. How many neutrons a( km0-p ms iu-vh qft+pfj3lk)rk*8 i(re 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, neutri1 jjd15w 1sxx0aoc ;oons, 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 carb3+tc n(yl * q*hh2ts m*bc c2.;oslawbon-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 15 has an isotope of mas vnv/:f-uf5cr x5o 0yis 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 of o f,a b -t+k/qdsdf+l5$^4He$.

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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 req wd,n+j;frk7 bir*5oquired 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 atomic number i o*/ngxu, zk8hs hng z/o8k,*uxnow

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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 alpha decay, what are 9nmy;a7m v *zl6 vu(zyj ku7(rthe number of protons and neutrons, respectively, in thelj um6;yn* 7zvv( y9m7arkz(u 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 om+k6gi(xu 3abeta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 3g(+ xm6aoikuu 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 atomiim-di 3pb7/1qfwxlf- r6mv4 uc number 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,xnzt t: gtti3.)(gg2 g how much will be left after 100 years? ig2tt.gg )(tz:gntx3

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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 thjppwer)1 j8pp;g ms5 9bw qtr+r/4wq5at an atom will decay this year if its half-life is 247 ye wme9jr/;p)1qsj p+rb4 w8 p5p5gtw rqars?

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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 at5) sh8g,lgnzo6bo g.g $10 \; \mu Ci$ 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 f.8e3vkvxv 2rh 7l2f yhv pn;i(raction of the sample is left after 4.vfni(rv2v7ypxh; 8ek 3hl v20 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 days. How many iodinee7 y( ck5lqa5h nuclei are necessary to produce an act7 5 (qkchal5yeivity 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 initial activity of5 ev4- o;fav.pgdpfm1z ckk 96 p fok4c1g fmpev-d 6v ka.59z;$0.24 \; Ci$. 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 b+s.oh0z : (0ndym9 xchtmut9piece 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 thet 9 m9+h:sx .n(cd0z ybu0othm 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 m a/pmsu w/o8i0vyo3-$4.0 \times 10^{20} \; atoms$ 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 1+ d5j4 ls4mv dv6wx gph qq67g7anr5sa $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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