51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫,访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


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

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the atomic pn-;1owi9gfg fo q.u )farticles has the least mass?

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom iskufi7:x-ah t:v(fmbi k0 o/l16y3nkd

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consdj k7yo23irf4 qe 0..qr60m3swarpzc ists of

参考答案:    

标记此题
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 0dhzxk1 : dhma0ul)a9the number of

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass numbe4gkazzdmn d 9r71 x( 3mu)xpsnyhg:,2r is determined by the number of

参考答案:    

标记此题
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 - yyv:fq+qma-neutron number by N, which of the following is --+ayymf: qvqcorrect?

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emitted from an unstablpmjh ost:cq4009 9puye nucleus, the atomic mass number of the nucleuspq:9 mutp9o 4c yj0sh0

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in asd8t2 e040aukes f3xhn atom is

参考答案:    

标记此题
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 nucleuhbgg jo0*ifqccfnuwl 7-( md uzb )- +yc)20l:s because of

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same atomrxvrkwn;nup.,irx , -y81ly, ph+j 7x ic number but with different numbers of neutrons are referred yn,rwrv,hp n, 7ip8kj;xu+ -yl rx1x.to as

参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element have yk0 ,*w ,*,iydoqblgvgu11xanuclei with

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit is definedr6y .et/o8 pxe as

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses of its sepa : 6ieklqzr7(ujr o3g)rate protons and neutrons, the total mass of a stable nuclejguqk3i)6r7:(ezor l us is always

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to form a stable nucle) 6o5tyi/igjet +0luv g)jru +us, energy is

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a nucleus ir x1a3 qtc),ews contributed to

参考答案:    

标记此题
16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleon i/ swv 77o lgi3bnc62- jbp.r5erchce(s

参考答案:    

标记此题
17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleonm)cejh nl0zd66 :l6om

参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements concern0uc,jo/ udk(vpm3li2 tn(d9g ing the nuclear force is false?

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic fopnp,4iznzi -ohhs2j(6 0c79 v g3wwwerce, the nuclear force between adjacent protons in a nucleus i9zn(hv ,i j oz-7w4hw3ei2psp wn0 g6cs

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetrouu mq sir f,4:/a:(iiate

参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrnazf.h3 w8 0yx9dbz2.uxnb2q ate

参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetraj71ou) u .8 lhyk4jdyate

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also known5z54 wczyh3 ls as

参考答案:    

标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

参考答案:    

标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

参考答案:    

标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also knowj2ocg* ,0zjf0f+qgkz n as

参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will be az-lg2)zhkc h- ttracted to a

参考答案:    

标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic mass equal -rj(xw l t,y8lto

参考答案:    

标记此题
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 mass np nsag:djtbi: 7k ax0)o)2y8iumber of the n02 a8k:di jang)b i7: t)pxsyoucleus

参考答案:    

标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particlesfbwjy:*ovlj9 2 )j i5jnv)az ,wc3l / is emitted from an unstable nucleus, the atomic number of thebl/jsz,2n ji3)*cwyj5of lv :a vj)w9 nucleus

参考答案:    

标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY - 3(e (wlmmhc a9Ma) x 931.5 represents

参考答案:    

标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

参考答案:    

标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

参考答案:    

标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

参考答案:    

标记此题
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

参考答案:    

标记此题
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

参考答案:    

标记此题
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

参考答案:    

标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the followingvi )/u* n)yzcg is most nearly the same as a gamma ray?

参考答案:    

标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is emittedd5;(u gs i(7 szh+s)u 1rbfaud from an unstable nucleus,

参考答案:    

标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the most mn-qoy. w n.631bfmi 6y u6luv5wmf;haass?

参考答案:    

标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radioactive decay,m 1efjzt40g h: what value is conserved in addition to elecm zj0 :fgh41tetric charge, energy, and momentum?

参考答案:    

标记此题
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 radiob w8joukvf8b2/a 0h8en3 e*bqactive substance as it decays?

参考答案:    

标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often use vnbtznnc3 -0 exn1tojv b9/o l;434nzd. This nucleus emits a single beta particle when it decays. When this 449t -eot3n xnbnzzcn31v;oj l v /b0nhappens, the resulting nucleus is

参考答案:    

标记此题
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(*/xvfphu d.n(hu v7 h to curve charged particles is a

参考答案:    

标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses t bz /3y7fvpn;liquid hydrogen is a

参考答案:    

标记此题
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 beca *u)vr sjdx(-up d2 ije;j;c(ause

参考答案:    

标记此题
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 atomicbmu,qw2kcxv257 /ag c number 6 has how many protons?, 2xk5vq ccg2/ b7waum

参考答案:    

标记此题
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 many1zo/,gkkr ( g6n/qrdm de3;hf neutrorkgkmde 3zqno (,g16 d/rfh;/ns?

参考答案:    

标记此题
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 39, respectivx rh8tw))t1olnx ba/h6-6v xqely. Ho8abnh1-/ )qo)th6rxt lwx vx6w many nucleons are in one atom?

参考答案:    

标记此题
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 gou:t * c5:ova39 are 20 and 39, respectively. Howtv: goca5 *uo: many electrons are in one atom?

参考答案:    

标记此题
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 eks;y 5jf7zp2)ne e9u, respectively. How many protons are in on 7snjue9;5) yefpk ze2e atom?

参考答案:    

标记此题
52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass n5;91t-x jzrzv r( 2 /t/ hhwln0bxambgumber for calcium 39 are 20 and 39, respectively. How many neutrons are in 2xh/ratl;0 brhm- v51j /n9(w gb zxztone atom?

参考答案:    

标记此题
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 elect4bq 0cuz dn0y( 0w.wyco+u(q mrons is 41

参考答案:    

标记此题
54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are tpyskynkv6m 2y0* x.,y rd9j5ohere in the carbon-14 nucleus?

参考答案:    

标记此题
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 mass nuhtu 7**ein4o ,vx6v, ) ylvzc8wes.tomber 32,

参考答案:    

标记此题
56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding e1 ua: xq-(dpwofr3g; anergy of $^4He$.

参考答案:    

标记此题
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is r3 zzk 9v/iukl9equired to remove one proton from $^9Be$?

参考答案:    

标记此题
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goes thk pir;+w fqyqz 36n.v,sby7 w4rough alpha decay. Its atomic number is n k qb4p.;fvrnyy zi6q7s +ww3,ow

参考答案:    

标记此题
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protons7 v:1b:s06puhi/ itq ; zyddyk and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respectively, in the daugh0d;s i6u:hykdb:vz 1/qptiy 7ter nucleus?

参考答案:    

标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decays to a ) u dq5+ik:zyq)i (rsenitrogen-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 )5)k+sui qqiry:e( zd has a mass of 14.003074 u?

参考答案:    

标记此题
61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 6 undergoes h7, -icr.c3sd xg;8zhngx v) p$b-$ decay. Its atomic number is now

参考答案:    

标记此题
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 b 5ib5wux)). ua8 vhimte left after 100 year)55mt v8)uh x iwa.uibs?

参考答案:    

标记此题
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?

参考答案:    

标记此题
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-lvc qr d*j9njxsw.p /,9ife is 247 y,.jv9/ drq9pc wsxjn*ears?

参考答案:    

标记此题
65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was c;dl wiu3pqa25 9fn *dbertified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

参考答案:    

标记此题
66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample has a0r3xg o xzjn+-dgi41j half-life of 10 min. What fraction of the sample is left after 40 m jj3x0nxrig+-ogd4 1zin?

参考答案:    

标记此题
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 iodine n b,ts5w *p.oxauclei are necessary to produce an activitt w ,*xapo5s.by of $1.0 \; \mu Ci$?

参考答案:    

标记此题
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 ;.)ydl xmjrvf8ik(2ginitial activity of l);k(2yr divf8m.j xg$0.24 \; Ci$. What is its activity after 6.0 days?

参考答案:    

标记此题
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 casket frolw8eb p7 y -j5, q.kp6melj.(flnnqg; m an ancient burial site was found to produce 20 counts pek l f.n7q5jj8pqy nm,b;g e(6epwll.- r 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 the artifact to be about

参考答案:    

标记此题
70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it tako8, tbaq 27bgfm/ ;h1- jxd ,bc4wfephe $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

参考答案:    

标记此题
71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it take aw+z,ymx apf9if45; dq $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

参考答案:    

总分:71分 及格:42.6分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 71 道题

浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

GMT+8, 2025-12-20 04:01 , Processed in 0.764636 second(s), 172 queries , Redis On.