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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 t3vavx5k sv8j6iv e8zaz9pq 12he 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 is3paqicydup93i 0 -e ,t

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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 qw) sedw +km9 s-j0:ml w5/7m/hesxc aof

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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 determin uio c0x+cqj-8cc7 /r cx0wwi3ed 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 numbert7h(o; d2 hxilvkvv(k ik2 *2ibu.u9in/6l v q is determined 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 byu7vt )a:z+2oxmmg7 jm.uib4 r Z, its atomic mass by A, and its neutron number by N, which of the following is7omgr + uub)7tz4jmi:a .xvm2 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 jgeuhi oqowyl 0w69s)dg )x-a n;p79)atomic mass number of the nucleusnuwgxj;)76 oy hoq -eid)9gwp a0)s9l

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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 at.baw5 cfl72g qal eu 8,s0flm*om 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 because ofzg3e m 4(-9s4rl+dkvsbven 2nfyl5k.

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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 neutrons avfh2s. -5p rt2c. velore referrvc-2ls.v5 er.tfh 2poed 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 elementuzspqa l,f8(,d 7a7xz 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 de:7 sgsoe/,c-luq-r ) lvincz9fined 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, vq49oovqm(bk4w9 da4g.cj/ sthe total mass of a stable nucleus .4bs4w 9ocqmq a(94kv ogdj/v 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, energybigb/kq-p (6jryp )x7 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 nixa*z8m5 ke j ) o0+kk4qj/ninucleus 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 nuclet1n /4gh dtd4eon 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 nu4xod/;,xmv ze cleon

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followin,/rm4u 0s q dc9 kuneyau/b;m*g statements 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 nuclez, qq(ew4kf 83s (i( y/z cev,ipkwg:mar force between adjacent protons in a nuclei(4iz,( mw p czye( sfqqk:83/kevg,wus 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 penetrate8 k0azkn:qe y+

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrater5 9bwew3js 2kn6;g z*qc/fhq

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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/)wr d,su oq b:z)v-pgte

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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 afw . uc yus3o7ay8l2n9e5;dot s

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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 know;.cjjyq5 +qw /fpfcb:nfe.(yn 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 attracted sx4na(2io c+4vx9/pnxk4n k cto 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 eq zqnaj9i7o 6wtnm,dqv (j*-5 oual 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 em uj l6-zdh)wmgzo9zvr + 0/k8bitted from an unstable nucleus, the atomic mass number of the nuc m rwku+9dzhvjl oz)0/g6bz8- leus

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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, tb3.k, 3fh mg p*hf.xydhe atomic number ofbf*3d,hmyh xgf.p k3. the nucleus

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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 ahiky4c)2- khi5qqn0t dj 3qqi d;*;m.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 nearly the same as a gam3 k drn2)5vusima 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 l:vbc* gn- u5i rf*.pxunstable 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 mo1bei0-h ok/5se. r au(tgoiehd hi292st 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 valujwm (b4c(qy)e9vg) xu:kosg4e is conserved in addition to electric charge, energy, and mocox4(q())e:v9uk gj4mgyw sbmentum?

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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 radg62fmybqb( (yt0r 8gvioactive 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, cu)ikn3/0m v/0/i ppbf6adtfgarbon-14 is often used. This nucleus emits a single beta particle when it decays. kuafi/0 6b/0gpdm vp) 3nitf/ 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 charged pc 92 /u7-ypbxb ui4dzfwv/ybvi + z*9jarticles 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 hydroggp/e601rxjeg s/k7ewn*b )w den 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/.a-owq k0q23sd6tnt: a vzcv 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 atomr)()k mgwzhi2avt7 v awwe10qo4s3a:ic number 6 has how many protonow2 (atrma3v 4i1eash0w:qzv )w)7 g ks?

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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 ny*(sew kw fs):umber of 14 and atomic number 6 has how many neutronwkse:*f y) s(ws?

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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 x/ 84m w-lxpxeaaq2-by*di - r39, respectively. How many nucleons * ex bar-- x28wdmalxy4i/q-p 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 ;ol po -py8-)jynx 6eor6s 5jbfor calcium 39 are 20 and 39, respectively. How many electrons are in )y 56-jyj;ps6o- p o8rnobxle 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 39 are 20 and 39, respectivhhz2v, lzx obv4 w,1umy+ifi6 6rg 31iely. How manyhyvwzifx lu 6ihzi+v1m g4o,3br1,26 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 numb0g d9smr-o *cler for calcium 39 are 20 and 39, respectively. How many neutrons a-dorg 9ls m*0cre 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, q2mqpri(i:(i4+yjazh,jm 9 h neutrons, 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 m:6lnp*)s) l atktv f2iu6xn 820e drxthere in the carbon-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 q3 6tfdr zlac6fws)7315 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 bindin s4x 8x;fm2/ voqr)hd9t;vzpn0 ,zax54 zhfvrg 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 one proton fro 1 te/0hvpb)xvm $^9Be$?

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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 5v . ,vwu-)gsn0 bhmi0(r pd8:fjinac number is nwd (gn b v.asfp8cvi-n, :jh)05 m0ruiow

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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 protoh./fwr+r* pvvhs-k 4gns and 249 nucleons. If it undergoes alpha decay, what are the number of protonsv*v.fh-hr4ws/ r g+k p 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 decays to a nitrk)0 opw7 t+te xn9wgk*ogen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 has ak texp )+0ok*w9tn7 gw 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 numsxcs33i-zp +)wcqw- zber 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, howej;7dz7*en e xr o*f:1g;g btu much will be left after 100 years71g7 ebr;tonu :* *g;edexfzj ?

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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 at1n7 pgslag;g 7om will decay this year if its half-life is 247 year7gas 7n1glp; gs?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source wa5csz *+rf nvw5s certified 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 samplen;4f*poflj+w) 6erbl- hwqa 9 has a half-life of 10 min. What fraction of the sample is left after 40 +wlp9 a4 fnlrq-w*oh bef)6;j 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 xa4:e 6gl snz94pmr.mdays. How many iodine nuclei are necessary to produce an acte 4 p6mlnr.4mxgas z9:ivity 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-ppvx1u (*f / 0 b9prx4jarglg3life of 3.0 days has an initial activity of 9v3p j0u*4brgxplga/ f( prx1$0.24 \; Ci$. 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 pij 6d carf;6lij b*nsdw7e2u2a8l,ah6ece 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. Thel l h2 j d2fa7icuwndbj; *s6re,aa686 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 .nazyc60k. np.ch/f:pb i 1qk $4.0 \times 10^{20} \; atoms$ 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 taketwk+27 l7h ;2ag lwlptafzc3, 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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