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PRACTICE:Physics Unit30: Nuclear Physics and Radioactivity



 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 particles has the least ma;6lxbsjqk+w sh e):28cg/h 6fckjls (ss?

Correct Answer:    

Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom i 3zmxc4a2r5vsx5 *ny qs

Correct Answer:    

Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus coo(pp 4dak9-mbv zu,n7nsists of

Correct Answer:    

Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic number is dl*xu7+yt nf2np4 eb8getermined by the number of

Correct Answer:    

Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number is delr+h k 26mcocw.ch)i9apo. /ptermined 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 A, and its8f gz;rhdtz8v1uf /*xpa4u4k neutron number by N, which of thex /zt8kr1zupgd4 4 v;fu*af8h following is correct?

Correct Answer:    

Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an un f0j v* p6v;jxzix*x*astable nucleus, the atomic mass number of the nafx; *jv i v6z0x*xp*jucleus

Correct Answer:    

Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an a;9 7 rvnq84wcz/nfxmd3qhf f11pdq8qtom is

Correct Answer:    

Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size o270hwtd4/zipx it b/( q8rvnw f a stable nucleus because of

Correct Answer:    

Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with different numbk(dw;qkd8e /3fmt 7zeers of neutrons are referred tm3wd tkf;d/qz78ek( e o as

Correct Answer:    

Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nuclei w8 unsj5qrlcm 88 chq+:ith

Correct Answer:    

Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defined as lfe3ph6(uhj 6c- x2rg

Correct Answer:    

Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of its separatie zd2f .qyotopb 75/fv ;7mw t,+kf3ve protons and neutrons, the total mass of a stable nucleus is always7dfo mi/ v,.o7tpwkz tqf befv5y3;+2

Correct Answer:    

Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nucleyw2+mq8 eg60afuflrv.5z -/l (ogxvbus, energy is

Correct Answer:    

Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of a nucleus is contributed t*b-nlu-cbyqp7+jof3o e. uy) o

Correct Answer:    

Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucle*li 7wa :t1pteon is

Correct Answer:    

Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nuclbk.: qqx9ft,xeon

Correct Answer:    

Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following stlwcq nu/rdxc:w25s:rpz1 q24 atements concerning the nuclear force is false?

Correct Answer:    

Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, thl8ewbl8a/at k7a +2wfe nuclear force between adjacent protons in a nu/8kl a 78ltefba+ww2 acleus is

Correct Answer:    

Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penetrate pxz upm*c-,qpw*otx:8k pe,u5 bis:6

Correct Answer:    

Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetra/.mqzh *-i spvte

Correct Answer:    

Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetr p*z(+ik-dxyp ate

Correct Answer:    

Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also kn9uehqt0qe 9 ehsx /:o7own as

Correct Answer:    

Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also,4ch,g dy7ycf known as

Correct Answer:    

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 know s3gzpknzx n( 8 f7:shdz5w3sk3.sf1 nn as

Correct Answer:    

Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle will be attracted to 97lfcpn/hu a5sji qky7 hz ,l+bgn-88a

Correct Answer:    

Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an atomic mdya 48 ,k lnk+yld6;c 2bci-ecass equal to

Correct Answer:    

Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstable nucleus, the at) 5h6vnh5szzp te3z s/omic mass number of the 5zt /z 5z3seh6vns)ph nucleus

Correct Answer:    

Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitg)vyv)ecmob 9 uoz(. ,ted from an unstable nucleus, the atomic number of the)v)gu evy(m9zoo ,bc. nucleus

Correct Answer:    

Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Mz2z c c,8v t.zkjf 5:av3wejbe+2ak1ra) x 931.5 represents

Correct Answer:    

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 asgx1:w g88g dl;ylc b:a a gamma ray?

Correct Answer:    

Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emitted from an uns; dx4ar fcmd22t.v t9htable nucleus,

Correct Answer:    

Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has the most m: c r6frk:5ea+9xccxvass?

Correct Answer:    

Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of radioactive decay, what value 08kqd wjupur,6pp r, f4y:n+ais conserved in addition to e 8rfauwjp4up k,qy d+p0r ,:n6lectric charge, energy, and momentum?

Correct Answer:    

Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioactive3vx u:lis wy;4 substance as it decays?

Correct Answer:    

Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is7spv n9l3mhs+- ly hn) often used. This nucleus emits a single beta particle when it)n vn+hlpy 7s m-l3hs9 decays. When this happens, the resulting nucleus is

Correct Answer:    

Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses a magnetic field to mo ,y cmey x op2/) k;m;il*jl)h-:t9mioolk1curve 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 liqi; i* xxeyd .fz4j6ddbln6p7+uid hydrogen is a

Correct Answer:    

Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced by b nct:lgo9 6nsp( :zulhaw1a-ep0l 5q4ubble chambers because

Correct Answer:    

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 how manyf :xpl8;.wsh w vk- dloa4uet-ye59;c protons?y.klaw-4ep vhwdsec x f;9:t l8o5; u-

Correct Answer:    

Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomic number 6 has how many neutr )i 31*ge vp+oiw3jk *8d4wxet:x2ifqgea q d,ons?wivwpaj :q4xi*1k e833f eq doged+i tg,*x)2

Correct Answer:    

Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for ca838x i/l gloxjlcium 39 are 20 and 39, respectively. How many nucleons are in one /i83jxlg 8xl oatom?

Correct Answer:    

Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39b+ ;0qy w/fuy.h 4sdma, respectively. How man. +fy;h 0q wus4/bdymay electrons are in one atom?

Correct Answer:    

Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number:-vnh wa (lrhz4oik3 s.o75jl for calcium 39 are 20 and 39, respectively. Howli wohkvz3lh4 o.a5 n7-(jrs: many protons are in one atom?

Correct Answer:    

Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calciumaj0w 9w)vv0w-rqn.r v 39 are 20 and 39, respectively. How many neutrowvj nv0awvr-r.)0 w 9qns are in one atom?

Correct Answer:    

Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, the number of protons, neutrons, and electrons is q3lmt+.2anst -h (xm mf43iyu41

Correct Answer:    

Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there inei-1 qg u:g0fl the carbon-14 nucleus?

Correct Answer:    

Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an hp6 :gco kwx(ln70 ud:isotope of mass number 32,

Correct Answer:    

Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding energy ofq(4nybuybxj5u7 s ugm( mx a5 :a-arzh6v, -n2 $^4He$.

Correct Answer:    

Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required tm t)l7 :phx2*yn 2qqy4 -upjgko 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 alpxj e9+612yx n59y(m nygejbn cha decay. Its atomic number is noxyc (69nejy+ j9nb 2 gxm5ney1w

Correct Answer:    

Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons and 249 nucleons. If it undergoeww t2t6i ,:z,ix.u jqgo7z /whs alpha decay, what are th.izjuw to6ziq 7 w/g,wth2x:, e number of protons and neutrons, respectively, 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; l9 zs, ,unrfz3 t0:hdzooz;ah5k+c s by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14z,stzzon rkl;cs , hd fh35a:9+;o 0uz.003242 u and nitrogen-14 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 6 um:4p /nl cxv.kndergoes $b-$ decay. Its atomic number is now

Correct Answer:    

Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a material is 45 years, how much will be leh*c- lsigrof6k :24l0bb6gfxft after 100 yearb:*f6 gsi0 lhlf ok6cbg-2x 4rs?

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 year if its hay6hroa:x 7ij 7lf-life is 247 years? :x7hjri6 ya7o

Correct Answer:    

Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was cer/+cq; uwwejzygb 98-wtified 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 fraction86n.*aw 0dp p7skhkrq of the sample is left afh0qs 6p.k n7pd *8akwrter 40 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. How6tr6 rqz7/pl0w(- z 7s zjliiv many iodine nuclei are necessary to produce anv (-tzlzjls 0ir6/6wr i7 zqp7 activity 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 of 3.0 days has an initial ac0l*i(n ov q,ogu4 u5dbtivity of 0b ,4(q uvuo*logdn5 i$0.24 \; Ci$. 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-m3p r85 khzhv(14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the sam (5rh 83vhpkzme 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 take4tsg*g (;mzy x28i *8lzrfer4) vnyhl $4.0 \times 10^{20} \; atoms$ 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 take sce7 sx:m.kg9jnbszg6kuj* og42-a 5 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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