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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 has the leas4n h6r+ ;frknft 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 is,s) g3j kx-uoj

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consisto ,zdy0nm;65t- de lj pmre(d;s 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 na(f xygigb6 sn/54(g 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 numberaz tqpv kra57mm ywz808k9nz 2jugm2(3 cyo* 5 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 numberro-b3iz rl7 p3 is given by Z, its atomic mass by A, and its neutron number by N, which of th733ob zlpr ir-e 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 unstablelz9hrl(; 2l r2gc qnc0 nucleus, the atomic mass number of the nucg;rzc(n hlrcl2l 02q9leus

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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 20q wc k735jd,asvo1 e. mnonyatom 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 nucl tlq 2w1py1i(hf3wgc8eus 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 difd6pa(*ct 8 y6rqhxh0eferent numbers of neutrons are referred to a8 *ye6axhq6tc0rhdp ( s

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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 7 uj*jxy1ny ixbc.u j wn/urxs))3a67 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 defiopn/2yfi a 34 js9d-pmned 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 total mass 9v.s56ri+m0isfwocc, d6x v rof a stable nucleu+v0 f,6wvrsci .s95oxidmcr 6 s 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, enertbj; )umu*m uru1jr/f(8tgp-ua; c(lw-( jkrgy 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 contribute.8emh9-dnw +ji /*gsdw syz2qd 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 nuck)k1ol1puqsmed d).np9 t83 r leon 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 nuytu:w.c fa5;h 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 followiny:zj w601t yvgg 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 electrdlw9zm9 wr3x7u7nym 4ostatic force, the nuclear force between adjacent protons in a nucleus dz 4nmx w7l3 yw9r7u9mis

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penet)m-8 f6jg5 q,hbj bpj+odyao 2rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrabk4sib t3zj+ /lxsn* 3te

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetratems u02ffb ,fb3

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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 ,qj().zkizdvknown 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 known1 rio t5itq,i7 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 to) b qp+5manj4s 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 ato+.pe0hga--a q2 gpmt tet x-7umic 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, the atomic massk)a p2ef w-7oi numbek7p) w ai-ofe2r of 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 numberh s 6(dgo,gu+ *fafhw) of the nu of)+ (u6wga* dshghf,cleus

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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 931ksyz+nih 3)xj ) z1d1s.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 neq+1zs3*hcnx6oty2b7o9;yfwm )e aaiarly 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 emittedqcp 0r f/k,v mb5cnf14 from 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 masswtt5p ucd cl:3g6jx fk0d-9*vke d//r?

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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 radioacfz0 vwpi md 1((je3; ftkfj/h-tive decay, what value is conserved in addition to electric charge, ehi/(fftfk;0dz 1j (-v mwjep3nergy, 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 substance as it decays?rif. ajlx:c);:t: lc d

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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 sin*dlq)3veu 7engle beta particle when it decays. When this happens, the resulte3u )* 7nevqdling 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 curves 828num -guka 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 isqc) o 8bsuew78 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 chahx0g78wb 7; ou nq-govmbers 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 ma ,b0eprx9 f;jhss number of 14 and atomic number 6 has how many protonsjf9, e;0brx ph?

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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 neutrof1wo /8cn9yyxns?c9w8 y/fox yn1

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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 tl, is48lf wov(4 cqw/39, respectively. How many nucleons are in c fw8lio(lq w 4/4vs,tone 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 numbem t kyzmdl0:s3c 4;( vscapr)9r for calcium 39 are 20 and 39, respectively. How many (cytvazm4 m ;rs 9p0)dc k3sl: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 numbero9v8 :1tewzb p0bd74ew7 mham for calcium 39 are 20 and 39, respectively. How many protons are in one m b7bz oemwa0 vdt187e wp9:4hatom?

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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 anku- ksa q,m1:td 39, respectively. How many neutrons are in one-kkq,ts1 am:u 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 number3f/fn: p26gzrz5tvt4y-az2 l*b ol wt of protons, 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 a8bu l ehb964rthere 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 15 has anj5n/ *kmgqh;o 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 of w(*t aoyxj;512 (vvj; sc ymzh$^4He$.

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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 5-xbbre 8 y cjtaaq,3: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 throd*s,w0v vrxz eu3m h svi(7 k75s7z6krugh alpha decay. Its atomic number is er7,6 (5zr73* wmkv 0ikvzh vusd x7ssnow

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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 protopxk aj69ec4aavnc*9 8 ns and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, rev46 p*e9akac9nc ajx 8spectively, 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 nitrogen-14 nucliic;f p ;5z4 ql8/9aqhixuwjp ;.ykp1eus by beta decay. How much energy (in MeV) is released if carb.qi;pj1 /; iyuawf ;p8p9ilz 5 kc4hqxon-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 6swu 6 dkz4trf3qz7hnqvdk hv o;d )i(m6t/-, , 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, how much yc7+;ysldm6 m will be left after 100 yearsm;d 6ysyml7+ c?

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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 a3zy4j-npgx )p tom will decay this year if its half-life is 247 yearg pn3 yx)4j-zps?

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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 c 3dd 7lbj j )5sq0iy),gc;spkp4iv/lu ertified 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 15l 89 ae 4,demsdar4hpf b/jp,0 min. What fraction of the sample is left after 40 min5psb4/, 4h9 dj mlr8edea,fap?

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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 io( pf*w,k 6xflmdine-137 is 8.0 days. How many iodine nuclei are necessary to produce an activity of*f, 6mk wlxp(f $1.0 \; \mu Ci$?

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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 cx,pct 4ll3z3has an initial activity of 3x pcl4c z3lt,$0.24 \; Ci$. 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 caz w1q )c*7iv;yt;z5ytpyh5po sket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the s5qypi z*1p;;cv)t7y5zotw h yame 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 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 takeyr-t+atevsi2 ,k tu57 $4.0 \times 10^{20} \; atoms$ 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 takehc6afza;1bu .i uz1p :c8f 8dz 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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