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PRACTICE：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于https://webassign.org，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
 Author: physics    Total Marks: 71 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 14:16  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the atomic partl d)dk/9 f4gwc2i ,cikicles has the least mass?

Correct Answer:    
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Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom 9du 3z/ u3qslmis

Correct Answer:    
Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus p ylve9yndn1+1e ,bu72 3acteconsists of

Correct Answer:    
Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is determined by3a1e wa sd2bdtc12)t:+hasd i the number of

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is de0+din 1um6 dwqrvf e+w5ce a.-termined by the number of

Correct Answer:    
Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its atomic mass by Aqdzbwcn *,u 1y o,l8ns30o7 mzyjf/6s, and its neutron number by N, which of the following is corrl8sb1z0j y7c, o/3n oyu ,z*6nfwmqsdect?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleus, the atomic mass n7v g.yv2 9zxt:udlj s5umber of th7lgz jvut:y2sx.d5 v 9e nucleus

Correct Answer:    
Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in t.i;sro ul6x, an atom is

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Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the sizefdh -5lit3 l x8.y ,zc hnyyb,vwo*59a of a stable nucleus because of

Correct Answer:    
Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomicx4 r1hp z6xoiso9),wz number but with different numbers of neutrons are referred to o ,i h1oz6wps x9)rx4zas

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have n2hb o2ly ,tsbzv.dz:2 uclei with

Correct Answer:    
Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defig337ybkmaw om o7 /1tened as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separate protons and neutrons, the total maslqd9 togr:p,r5 +yiyc,b2 *nvsu +m1ts of a stable nucleus is alw,9+*str iv,qonyrlm2 c 5p:ytd1gb+uays

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join t iu0quvipf +89 nog*4io form a stable nucleus, energy is

Correct Answer:    
Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contrf (w x6-optduw-+b,j bibuted to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per db: 0w v(bv5bu;b9in dnucleon is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleo p n8/bmm/sd. dq .tl7*pfd*vtn

Correct Answer:    
Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following sv0cuq a :pwe-8 rt*up2wdzql ,bihfvi77 2+z*tatements concerning the nuclear force is false?

Correct Answer:    
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Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, the nuci . /en.syt3i8y :qsgalear force between adjacent protons in :n satiy iq.8e 3g./sya nucleus is

Correct Answer:    
Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetratcjk3wk* +*huc e

Correct Answer:    
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Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrate- 0npbx v*jyp(j90 5 bjg crrj2tr0ug1

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetrat/:m g(ek thz a3f);wmee

Correct Answer:    
Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also knr5ae*y)a uc:a own as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also wszp gl5p gq)(8k/gxwfq69t( known as

Correct Answer:    
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Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A $b+$ particle is also known as

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also 5o xk(76dy do-im:g+br*k/wh hwhpg0 known as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will bd20y6vx, h;mae qct-rdk 4+k xe attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic ma* sz4) cwpuyu7ss equal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle isk,caol 9u p9a*h0 qk2p emitted from an unstable nucleus, the atomic mass number of the nuc q,u2ah*c po9kapk0l9leus

Correct Answer:    
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Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstable nucleus, thzdc g4 ;4pxda 1.gwk-ie atomic number of txc-wi4daz;1k dg pg4.he nucleus

Correct Answer:    
Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX -vfjvi7 5mh) a9 MY - Ma) x 931.5 represents

Correct Answer:    
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Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In beta decay

Correct Answer:    
Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b+$ decay

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b-$ decay

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearly the same as a gamma ray?xmb,m lk/0;f+ exq. 1sp9uf yc

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emibmrc*r.ujx* : tted from an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most ma6dwyjozosi s :s (*3d(ss?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what value fq;mdm,l(;al+r+ p dlis conserved in addition to electric charge, energy, and mo+(dlllda; r mq,;f m+pmentum?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a rl+hmq g a0vax/;yn4uz ls76(wadioactive substance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, cp.hzg( 0-) fxzd63 x0w,bgpn vin8yt farbon-14 is often used. This nucleus emits a single beta particle when it decays. When this happenzx i8p 6pdbxfw,(ygfz.-nn00vg3 ) ths, the resulting nucleus is

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector tbvfc;l ;, move6bz9 .ehat uses a magnetic field to curve charged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquid hydrogen ib,e jnqj 5bnx1, )o2gbs a

Correct Answer:    
Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by bubble chambbyor41n zg:zep*k-5k uvc ; i(ers because

Correct Answer:    
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Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic number 6 has zuosdf.gf6:,rz8x jr.xv+i1ul 3h+z how many protons?rh jz io3fzv+fxux68r1gd .zsl + ,u:.

Correct Answer:    
Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of by. (uzucrk(ce )q9 j714 and atomic number 6 has how many neutro.uuy( jbcekrc( 7) 9zqns?

Correct Answer:    
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Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, respective ,q7z:b 5b:egt gffrn.ly. How many nucleons are inbb.:, 7 g:tzf 5fenqrg one atom?

Correct Answer:    
Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number fo1a sicm0fb1a np lj9pu0*k,)h r calcium 39 are 20 and 39, respectively. How many ell11 ,s0a*p) j0bkfmui ph 9acnectrons are in one atom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and 3vfr(5phozq). j y.p,oc- k*p2jtqg+qn upq0mass number for calcium 39 are 20 and 39, respectively. How many protons aq0p*p,2 v +ztqo)oq (qjrhcpg n.u ykj5f 3-p.re in one atom?

Correct Answer:    
Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass numij2 pr: wi;z8a2l gj6zber for calcium 39 are 20 and 39, respectively. How many neutrons are in one a6rjj8 w2gl2zz ;pa ii:tom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the numb;c rtn 9(7nfkcer of protons, neutrons, and electrons is 41

Correct Answer:    
Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in the carbon-14 nucleus?h v)z(.m1 nysoek9fmv6j. 3hc

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic numberh1w 5a 6vg:m ajqggo)k-k(ci. 15 has an isotope of mass number 32,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding enerjd*tw( h9qt w 7(l9amu*enge+gy of $^4He$.

Correct Answer:    
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Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is require8 wm4eapw4p f.d to remove one proton from $^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 88 goes through alpha deiq bl 0m;h,4macay. Its atomic number is noi abhml40 ;q,mw

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 o8 u n wevm5zci2e,5v,nucleons. If it undergoes alpha decay, what are the number of protons and neutrons, respe o2newvi 8m5zvec5u,, ctively, in the daughter nucleus?

Correct Answer:    
Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays to a nitrogen-14 nucleus by bet,mh8 ep5zz )qpnfo j:*z,;ed0fuoy3da decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-1jfe,dyqh oo3zef,*pzd)5n: 0 8zp um;4 has a mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 6trs o 75)xqn 9a(49ffft uz9xi undergoes $b-$ decay. Its atomic number is now

Correct Answer:    
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Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a material is ;(qf(z5 gnwgh orc mf0 ufsjs7* +y7r045 years, how much will be left after 100 years? ;qj0 (fsgr7y0gzmfr c wn7+hf(u*so5

Correct Answer:    
Mark Problem
63#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

Correct Answer:    
Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that an atom will decay this ueont9l27q dc8*8j rwddu )v9year if its half-life is 247 ye ejd7tun q92o)wr8cvlud 9*8dars?

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source wasc 5/ :lp- s. uctd,hoeaf1jr:v*mwd *i certified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

Correct Answer:    
Mark Problem
66#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive sample has a half-life of 10 min. What fraction of the sample inm2m kgi-xu;efa16o6 ;u)khus left after mam n1 62x;f-u) ;kg uuehoik640 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioactive iodine-137 is 8.0 days. How many iodine nuclei are uvwzuj-3a1; q necessary to produce an activu-jv ua3q;1z wity of $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a half-life ofllgm6i+g;l - f 3.0 days has an initial activity of ll-g ilf+6; mg$0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due to carbon-14 measured in a piece of a wooden 8rq3+btz90tdop, zg 7l t,nehcasket from an ancient burial site was found to produce 20 counts per minute from a given sample+3 ,ng 9 qro0pt,z8zt7ltdhbe, 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

Correct Answer:    
Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it tak:xqwo)rr( 9naike bj: dg/n)( e $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

Correct Answer:    
Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it takp7 h2b+h8lux3pl1 e coe a $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

Correct Answer:    
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