WebAssign

 Forgot password?
 Register Now

 

      

Upload Images

Unused Images

Tips: allowed image types are: gif, jpg, jpeg, png, webp; When uploading is finished, thumbnails will be generated and shown above. You can either double click on the thumbnail or simply drag the thumbnail with your mouse, the image will be bound to the current problem and displayed below it.

Used Images in Current Log

Tips: What is shown in this column are all the images associated with this exam log. Those bound to a particular problem will also be displayed immediately underneath it; Deleting any images will make them to be transfered to the "Unused images" category.


习题练习：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于WebAssign，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 329 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test329.html
 作者: physics 

答题人: 匿名未登录  开始时间: 23年05月01日 14:16  切换到: 整卷模式

标记此题
1#
 
单选题搜藏此题  
  Which of the atomic particles has t4:vm;dl9lz.b mv yv+hhe least mass? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
2#
 
单选题搜藏此题  
  The mass of an atom ishfb6ko42n6b 57 nwx t*nsi9ss (1.0 分)
参考答案:    
标记此题
3#
 
单选题搜藏此题  
  The hydrogen nucleus consistslqc*1c1 v 1pc3 c6kpfsorq9 .yq/z8d r of (1.0 分)
参考答案:    
标记此题
4#
 
单选题搜藏此题  
  An atom's atomic number is demafa j:hwy0zg li1c75l 1 fl, :6baf:utermined by the number of (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
5#
 
单选题搜藏此题  
  An atom's mass number is determined by the number ofw8g1 -nml c q,l4unu2q (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
6#
 
单选题搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, and its neut5o wbjz2was93ron num w2jzaosbw359ber by N, which of the following is correct? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
7#
 
单选题搜藏此题  
  When a neutron is emitted from an unstable nucleus, the atomic mass number of tj d (ux/gyst)+h)tuxjs d+(yg /e nucleus (1.0 分)
参考答案:    
标记此题
8#
 
单选题搜藏此题  
  The number of protons 8x pfo*1 s8z6v4emqx; l;rr e iixl7*qin an atom is (1.0 分)
参考答案:    
标记此题
9#
 
单选题搜藏此题  
  There is a limit to the size of a stable nucleus because ofb+ 0yvov8/ glq (1.0 分)
参考答案:    
标记此题
10#
 
单选题搜藏此题  
  Atoms with the same atomic number but with different numbavswi2-g qfn- -f6u8r;l g iq05r-att ers of neutrons are referred8t-65g si2lnvu;-f 0-q-ariag r wtqf to as (1.0 分)
参考答案:    
标记此题
11#
 
单选题搜藏此题  
  Isotopes of an element havho1r cx2 4:lvsaa*/70yrq v ede nuclei with (1.0 分)
参考答案:    
标记此题
12#
 
单选题搜藏此题  
  The atomic mass unit is defined (i,6x4 puwri:1 exc keas (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
13#
 
单选题搜藏此题  
  Compared to the masses of its separlc njgd 6-(q6z-vb /dgate protons and neutrons, the total mass of a stable nucleus is always6gc(gjlqb - n6 -dzvd/ (1.0 分)
参考答案:    
标记此题
14#
 
单选题搜藏此题  
  When nucleons join to form a stable nucleus, eneqsy( xiket*-alf.0 e*rgy is (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
15#
 
单选题搜藏此题  
  The binding energy of a nu4k ,k4qhy wq**fc2 pdicleus is contributed to (1.0 分)
参考答案:    
标记此题
16#
 
单选题搜藏此题  
  The binding energy per nucfm8x0 hr) i x686xnnpcleon is (1.0 分)
参考答案:    
标记此题
17#
 
单选题搜藏此题  
  The binding energy per nucleon fmj pyq,ep(r-)o 1t6r (1.0 分)
参考答案:    
标记此题
18#
 
单选题搜藏此题  
  Which of the following statements concerning,7a-k(c 1qhftque j j* the nuclear force is false? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
19#
 
单选题搜藏此题  
  Compared to the electrostatic force, the nuclear force between adjacent aa euup6 9z1to 6mkdxn;.06j tprotons in a nucleus 190 ; 6ot6dtmx6ez.aua pkujnis (1.0 分)
参考答案:    
标记此题
20#
 
单选题搜藏此题  
  Alpha rays can penetrath9s7aez5 4xdth 9 1;prhbk4g ae (1.0 分)
参考答案:    
标记此题
21#
 
单选题搜藏此题  
  Beta rays can penetrate.smsdr-v vb;6 (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
22#
 
单选题搜藏此题  
  Gamma rays can penetrat*a30i doiid. +fuvou6 tm;yn7e (1.0 分)
参考答案:    
标记此题
23#
 
单选题搜藏此题  
  An a particle is als b(khgn*xj;*snqc-dq8p : 1r oo known as (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
24#
 
单选题搜藏此题  
  A b- particle is also k9ik,1tr2gd *lmsv1bbv qcv*3 nown as (1.0 分)
参考答案:    
标记此题
25#
 
单选题搜藏此题  
  A $b+$ particle is also known as (1.0 分)
参考答案:    
标记此题
26#
 
单选题搜藏此题  
  A gamma ray is also kn36tiw nog)v i(l926 5drun 8 eobo/qkdown as (1.0 分)
参考答案:    
标记此题
27#
 
单选题搜藏此题  
  An alpha particle will be attrac8d r: ri1nujap p3ae9.ted to a (1.0 分)
参考答案:    
标记此题
28#
 
单选题搜藏此题  
  Alpha particles have an atomic e3m:f nw+pye-mass equal to (1.0 分)
参考答案:    
标记此题
29#
 
单选题搜藏此题  
  When an alpha particle is emit fgvgz )td07s/ted from an unstable nucleus, the atomic mass number of 7gzs vf)0d/t gthe nucleus (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
30#
 
单选题搜藏此题  
  When an alpha particle is emitted from antyf-+t omv5n 7 unstable nucleus, the atomic number of the5+ v fttn-yo7m nucleus (1.0 分)
参考答案:    
标记此题
31#
 
单选题搜藏此题  
  The expression (MX - MY - Ma) x 931.5 41)zp 4o6,iwzxt 5 i;la xhxmk 3fb(zgrepresents (1.0 分)
参考答案:    
标记此题
32#
 
单选题搜藏此题  
  In beta decay (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
33#
 
单选题搜藏此题  
  During $b+$ decay (1.0 分)
参考答案:    
标记此题
34#
 
单选题搜藏此题  
  During $b-$ decay (1.0 分)
参考答案:    
标记此题
35#
 
单选题搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus (1.0 分)
参考答案:    
标记此题
36#
 
单选题搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus (1.0 分)
参考答案:    
标记此题
37#
 
单选题搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus (1.0 分)
参考答案:    
标记此题
38#
 
单选题搜藏此题  
  Which of the following is i0uewi45ey uskwevm*n0)9r3 sw60 ebmost nearly the same as a gamma ray? (1.0 分)
参考答案:    
标记此题
39#
 
单选题搜藏此题  
  When a gamma ray is emitted fromzk a-a ir50yhu+dyi 2, an unstable nucleus, (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
40#
 
单选题搜藏此题  
  Which particle has the mo mvw75mwn tk .gq8*q8c:g gmd2st mass? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
41#
 
单选题搜藏此题  
  In all three types of radioaclma48wcod:z9x d-e9 htive decay, what value is conserved in addition to electric charge, energy, and mom- a 9zwdxe4mdc9lh8:o entum? (1.0 分)
参考答案:    
标记此题
42#
 
单选题搜藏此题  
  What happens to the half-lia ;z ylcj;:j0cfe of a radioactive substance as it decays? (1.0 分)
参考答案:    
标记此题
43#
 
单选题搜藏此题  
  In radioactive dating, carbon-14 is often used. This nucleus emits . r(of:bo : v+bqtdce4a single beta particle when it decays. When this happens, t:cr(o+vf . 4q:bo detbhe resulting nucleus is (1.0 分)
参考答案:    
标记此题
44#
 
单选题搜藏此题  
  The type of detector that uses a magnetic f;u7n8dieq k2 0b/rs:md .czknield to curve charged particles is a (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
45#
 
单选题搜藏此题  
  The type of detector that uses liqui/ ;;.hcx2ur 7cxnu5kdrh:w rnd hydrogen is a (1.0 分)
参考答案:    
标记此题
46#
 
单选题搜藏此题  
  Cloud chambers have been repla0yyqd (4d rfp:ced by bubble chambers because (1.0 分)
参考答案:    
标记此题
47#
 
单选题搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 hayvq +d2u3+p/q jq qc)ps how many protonpvydqjqu )3+ 2c+ q/qps? (1.0 分)
参考答案:    
标记此题
48#
 
单选题搜藏此题  
  An element with atomic mass number of 14 and atomic number rzot1rr zdfu0+bg +eyohe,3 )j;i15i 6 has how many neutroeyo rbohe;+zdi f53u,gtr+01z )i1 rjns? (1.0 分)
参考答案:    
标记此题
49#
 
单选题搜藏此题  
  The atomic number and mass number for clvo28z7p5s0d p;b/s n z kute)alcium 39 are 20 and 39, respectively. How many nucleons are in one asvbk psp20u;tel87 nz)z/d5otom? (1.0 分)
参考答案:    
标记此题
50#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 3gkkby n(j 9:0x*rnvpjvc8y f 5f dz4629 are 20 and 39, respectively. Hor kf0dv ygxcy k6n4 :5fpzj2bj98v(n*w many electrons are in one atom? (1.0 分)
参考答案:    
标记此题
51#
 
单选题搜藏此题  
  The atomic number and mass number for calcium 39 are 20 9k -*nr:6;y6;ail7 mw pq7l ln zxhfsaand 39, respectively. How many protons aqn;sl7nmwfrax i z6al 9: 7py6;kh-l*re in one atom? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
52#
 
单选题搜藏此题  
  The atomic number and mass number for cawrogx )eq 2/y*lcium 39 are 20 and 39, respectively. How 2)eq oy rg*/xwmany neutrons are in one atom? (1.0 分)
参考答案:    
标记此题
53#
 
单选题搜藏此题  
  In a 93 Nb nucleus, the number of pro4fhqf n:vo 3isc/ dn:*5va2zotons, neutrons, and electrons is 41 (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
54#
 
单选题搜藏此题  
  How many protons are there in the carbon-14 nucle4 dzy q.ky:k(kus? (1.0 分)
参考答案:    
标记此题
55#
 
单选题搜藏此题  
  If an element of atof4 foen7/ cr2bmic number 15 has an isotope of mass number 32, (1.0 分)
参考答案:    
标记此题
56#
 
单选题搜藏此题  
  Calculate the binding energy of vr f,t+uf6u1hl lr49a $^4He$. (1.0 分)
参考答案:    
标记此题
57#
 
单选题搜藏此题  
  How much energy is required to remove one h3 juwgi* jd.8 8ud6+ pg sszm;yqz80wproton from $^9Be$? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
58#
 
单选题搜藏此题  
  An element with atomic number 88 goes through alpha uvj7 8/xu kq3:xgax e*decay. Its atomic number is noax u* xje/837gqku:xvw (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
59#
 
单选题搜藏此题  
  An atom has 98 protons:,e um zrydex(sqq6fe.6lv.t*i )ks . and 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, l6 :qkte,uzvdf eq .ssr()xiy*6m ..erespectively, in the daughter nucleus? (1.0 分)
参考答案:    
标记此题
60#
 
单选题搜藏此题  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by beta decay. How much ene5 k)s.ztl bn7 mf0atl5rgy (in MeV) is released if carbonznsltla.kbt 05 )7f5m -14 has a mass of 14.003242 u and nitrogen-14 has a mass of 14.003074 u? (1.0 分)
参考答案:    
标记此题
61#
 
单选题搜藏此题  
  An element with atomic numbee0r o6kv6w6mt r 6 undergoes $b-$ decay. Its atomic number is now (1.0 分)
参考答案:    
标记此题
62#
 
单选题搜藏此题  
  If the half-life of a material is 45 years, how much will be left after 1ukd3o t8 ct9d-r 7+kcjg4pp2f00 years gdro pkfcj82p3t7-c d+u4t9 k? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
63#
 
单选题搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years? (1.0 分)
参考答案:    
标记此题
64#
 
单选题搜藏此题  
  What is the probability that an atom will decay this year if its half-life is)q:uf mg ct6lz 41qt7v) n*kso 247 years?:motz6nl7u)4 sqf qk)1*g vtc (1.0 分)
参考答案:    
标记此题
65#
 
单选题搜藏此题  
  A Thallium source was1 /)2po .pvfgupdb qm) certified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
66#
 
单选题搜藏此题  
  A radioactive sample has a half-life (-b b 1aimatr74n6ftfof 10 min. What fraction of the sample is l7ai-f t(mfa r6n1t4bbeft after 40 min? (1.0 分)
参考答案:    
本Practice全部题目来源于WebAssign，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
标记此题
67#
 
单选题搜藏此题  
  The half-life of radioactive iodine-137 is 8.0 days. How many iodine nuclei acu jh -hp1s0;are necessary to produce an activith 1schu-;pa0j y of $1.0 \; \mu Ci$? (1.0 分)
参考答案:    
标记此题
68#
 
单选题搜藏此题  
  A radioactive substance with a half-life of 3.0 gbz, bx8s:mst:g,4tsdays has an initial activity of ,4g:smtb,stx b8 zg: s$0.24 \; Ci$. What is its activity after 6.0 days? (1.0 分)
参考答案:    
标记此题
69#
 
单选题搜藏此题  
  The radioactivity due to carbon-14 measured in a piece of a wooden casket fe*;p)3 5m wpydzjiyju9o 72 iqrom an ancient burial site was found to produce 20 counts per minute from a gyp7wm2 d;z*y95uo) e3iqj pjiiven 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 (1.0 分)
参考答案:    
标记此题
70#
 
单选题搜藏此题  
  How long would it takee* ck7 b8yci2hmq1d:dyv c.d 6 $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years? (1.0 分)
参考答案:    
标记此题
71#
 
单选题搜藏此题  
  How long will it take b1qymjywts0t 6/q9n (a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years? (1.0 分)
参考答案:    
  • 答题人:
    •
    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Practice共有 71 道题

    试卷内容到此结束!   © 2024 WebAssign版权所有

    Archiver|手机版|Jailroom|WebAssign

    2024-5-5 21:35 GMT+8 , Processed in 0.186191 second(s), 154 queries , Redis On.