Physics Unit31: Nuclear Energy and Radiation - 51fly国际课程 (51fly.win)

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?作业考试练习?国际高中通用物理?Physics Unit31: Nuclear Energy and Radiation

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习题练习：Physics Unit31: Nuclear Energy and Radiation

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作者: physics 总分: 38分得分: _____________

答题人: 游客未登录开始时间: 23年05月02日 09:09 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a target nucleus is bombarded by an appropriate beam offz uja.gywqo5 xs63sa0j;;b-; jm lv8 particles, it is possiblej m yz-s g6;.slq5jw;a8o; bvu03fxaj to produce

A. a less massive nucleus, but not a more massive one.

B. a more massive nucleus, but not a less massive one.

C. a nucleus with smaller atomic number, but not one with a greater atomic number.

D. a nucleus with greater atomic number, but not one with a smaller atomic number.

E. a nucleus with either greater or smaller atomic number.

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The mass of a proton ishyhe ;kh m9,y qkjl)dy* *g7v9 $1.6726 \times 10^{-27} \; kg$ and the mass of a neutron is $1.6749 \times 10^{-27} \; kg$. A proton captures a neutron forming a deuterium nucleus. One would expect the mass of this nucleus to be

A. equal to $(1.6726 + 1.6749) \times 10^{-27} \; kg$.

B. less than $(1.6726 + 1.6749) \times 10^{-27} \; kg$.

C. greater than $(1.6726 + 1.6749) \times 10^{-27} \; kg$.

D. any of these; it depends on the energy released during the capture.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a nuclear reaction, what vaf3ugqrj g3 )y)lue is conserved in addition to electric charge, energy, and gqjf3 3u))gy rmomentum?

A. atomic number

B. neutron number

C. nucleon number

D. none of the given answers

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A proton strikes an oxygen-18 nucleus producingxdd133c. vub t fluorine-18 and another particle. What other particle isu 3dvc1t .3xbd produced by this nuclear reaction?

A. a neutron

B. an $\alpha$ particle

C. an $b-$ particle

D. an $b+$ particle

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A nuclear reaction is said to be exot fm0e u2v9o(1 h*o3b8pj xpwixhermic if the total kinetic energy is

A. less after the reaction than before.

B. equal both before and after the reaction.

C. greater after the reaction than before.

D. zero after the reaction.

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A nuclear reaction is said to be endothermic if the total kinetic energy i1f-exek xy1+ib 5t/vns

A. less after the reaction than before.

B. equal both before and after the reaction.

C. greater after the reaction than before.

D. zero after the reaction.

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The process during which a heavy n4s1/ 0wjbzbz ve p9)ufjb-f )ducleus such as uranium splits into two intermediate-sized j/ ezfbb)1fjw0b-9v )pdsz 4unuclei after being struck by a neutron is referred to as

A. nuclear fission.

B. nuclear fusion.

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The process during which small nuclei combine to form largeel/ 39eqe(,ic/q p*zzhe 3ylhr/sg w3r ones is referred to as(qz qer*/3cewg9z lp3/y, he s/3h eli

A. nuclear fission.

B. nuclear fusion.

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How does the total mass of the products ofcv69o 3k92tnjt vg2y b a nuclear fission reaction compare to the mass oftbvk2 oc39g 6v j29nty the original elements?

A. greater

B. less

C. the same

D. varies according to the reaction

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

How does the mass of the products of (--+rgircdcm x ,nsn ;a nuclear fusion reaction compare to the mass of the original element ,m;x+gd rcs(-cni-n rs?

A. greater

B. less

C. the same

D. varies according to the reaction

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When light elements such as hydrogen undergo f o;f,a zlk89swii2cx4 usion,

A. there is a loss of mass.

B. there is an increase in mass.

C. there is no change in mass.

D. electric charge can be annihilated.

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The fuel for nuclear fiquasz0 :7qsh-yu-j3p ssion is

A. Hydrogen

B. Helium

C. Uranium

D. any radioactive material

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The fuel for nuclear fusion in the center of the S+qak5or*vg w u4h2 nni+e3;.mth7 s uzun is

A. Hydrogen

B. Helium

C. Uranium

D. any radioactive material

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The energy radiated by a star, such as the Sun, results h+mtf yo1f1x,v.sw);x g;qwf from

A. beta decay.

B. alpha decay.

C. fission reactions.

D. fusion reactions.

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the source of the energy .,w 2tu 4vrowethe Sun radiates to us?

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the principle difference between a hydrogen bomb and a ura2w 9*b;ted s2wli(ocmnium bomb?

A. A uranium bomb is an atomic bomb, and a hydrogen bomb is a nuclear bomb.

B. A uranium bomb utilizes a fission reaction whereas a hydrogen bomb utilizes a fusion reaction.

C. Both work on the same principle, but the hydrogen bomb has a higher yield.

D. A hydrogen bomb converts mass into energy, whereas a uranium bomb does not.

E. One results in radioactive fallout, and the other does not.

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

One sometimes hears reference to a "20-kiloton" bomb. What doesxp *tt9x1+vfzf,puhk d56u1cw, wn; m this mean?

A. It means 20,000 tons of nuclear explosive is used in the bomb.

B. It means that the number of "fissile" nuclei is equal to the number of trinitrotoluene molecules in 20,000 tons of TNT explosive.

C. It means that the total weight of the bomb (not just the uranium) is 20,000 tons.

D. It means that the energy released by the bomb is equal to the energy released when 20,000 tons of TNT is exploded.

E. This refers to the maximum pressure generated by the bomb when it explodes.

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the meaning of the term "criticarzg:4 shrx l;(l mass"?

A. This refers to the mass of the "critical" elements in a reactor, i.e., the uranium or plutonium.

B. This refers to the minimum amount of fissionable material required to sustain a chain reaction.

C. This is the amount of mass needed to make a power reactor economically feasible.

D. This is the material which is just on the verge of becoming radioactive.

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19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A chain reaction can 1x 3wwj7qs6mhzk gxa;v 6j3i9occur

A. in any uranium core.

B. when critical mass is reached.

C. in the center of the Sun.

D. when the coolant is too hot.

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20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The chief hazard of r2setz4.p qn/77vs j *,ubg u7w,mfpscadiation damage to living cells is

A. due to ionization.

B. due to heating.

C. due to the creation of chemical impurities.

D. the creation of new isotopes within the body.

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21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is necessary to s)bh rdbuq3j/.1 fvc2:7ietes top beta particles?

A. air alone

B. paper

C. metal foil

D. thick metal

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22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is created in p49sq f-uz-gdx wa,d8vf6a ;ga air production?

A. a proton and a positron

B. an electron and an antiproton

C. an electron and a positron

D. an electron and a photon

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23#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

All of the following are units used to describe pk./i1n rvo54 a4ft 7)hjgbcs+y*azhradiation dosage in humans except j1a.t*5 +kvgni7ah/sf4czro 4p hy)b

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24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A unit that measures 6bk gi mh;/2s *ow0s+ 5jsszq-r0ybla the effective dose of radiation in a human is the

A. curie.

B. RBE.

C. rad.

D. rem.

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25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When lead-207 (Z = 82) is bombarded with neutrons, it can change in16)igzv gfvkov-: k 3yto

A. lead-208.

B. lead-206.

C. tellurium-208 (Z = 81).

D. bismuth-208 (Z = 83).

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26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In the fission reactd8 mw 9bvd7i tja-tu3ub5: zr5ion $^{235}U \;+\; ^{1}n \rightarrow ^{141}Ba \;+\; ^{92}Kr \;+\; neutrons$, the number of neutrons produced is

A. zero.

B. 1.

C. 2.

D. 3.

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27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reactionj), m ;t (mtz8hj1zcoh: $^{16}_8 O \;+\; ^1_0 n \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

A. $^{12} C$

B. $^{13} C$

C. $^{14} C$

D. $^{15} C$

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28#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reaction:6 2vgr,baypt:v 9bma8 $^{16}_8 O \;+\; ^4_2 He \rightarrow \;\;\;\;\;\; \;+\; ^{19}_{10} Ne$

A. $^1 p$

B. $^1 n$

C. $^2 H$

D. $^3 H$

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29#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reaw*pcnoi cb-8 )ction: $^{38}_{19} K \;+\; ^1_1 H \rightarrow \;\;\;\;\;\; \;+\; ^{38}_{20} Ca$

A. $^1 p$

B. $^1 n$

C. $^2 H$

D. $^3 H$

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30#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the followi avsj3 hp yl6dm.p/dwdwf2( *2ng nuclear reaction: $^3_1 H \;+\; ^3_1 H \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

A. 2($^1 p$)

B. 2($^1 n$)

C. $^2 H$

D. $^3 H$

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31#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear zovkk1*g e6n2cwq/6creaction: $^{27}_{13} Al (\alpha, n)$ produces

A. $^{28} P$

B. $^{29} P$

C. $^{30} P$

D. $^{31} P$

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32#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The Q value for a particular reaction is -2.4 MeV, and the ix yyc2o5dw j(0*j d4p5ec.hxreaction's threshold energy is 9.60 MeV. What is the ratioy.c 2o4w dpjhji05dcyx*e5x ( of the mass of the incident particle to the mass of the stationary target nucleus?

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33#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Find the Q value of the following reaction ): cqjy3qborui6*6q f3qpp h+: $^{14}_7 N \;+\; ^4_2 He \rightarrow ^{17}_8 O \;+\; ^1_1 H$
The isotopic mass for $^{14}_7 N$ is $14.003074 u$
The isotopic mass for $^4_2 He$ is $4.002603 u$
The isotopic mass for $^{17}_8 O$ is $16,999131 u$
The isotopic mass for $^1_1 H$ is $1.007825 u$

A. -0.001279 u

B. -0.002179 u

C. -0.007219 u

D. -.0.009721 u

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34#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Find the Q value of the following reaction: fxdb6brh .o7: $^{14}_7 N \;+\; ^4_2 He \rightarrow ^{17}_8 O \;+\; ^1_1 H$
The isotopic mass for $^{14}_7 N$ is $14.003074 u$
The isotopic mass for $^4_2 He$ is $4.002603 u$
The isotopic mass for $^{17}_8 O$ is $16,999131 u$
The isotopic mass for $^1_1 H$ is $1.007825 u$

A. $1.191 \; MeV$

B. $-1.191 \; MeV$

C. $1.279 \times 10^{-3} \; MeV$

D. $-1.279 \times 10^{-3} \; MeV$

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35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the Q value for the following reaj f-;2ldyj9vv ction? $^{7} Li \;+\; ^1 p \rightarrow ^4 He \;+\; ^4 He$
The isotopic mass for $^7 Li$ is $7.016005 u$
The isotopic mass for $^1 p$ is $1.007825 u$
The isotopic mass for $^4 He$ is $4.002603 u$

A. $13.57 \; MeV$

B. $15.37 \; MeV$

C. $17.35 \; MeV$

D. $17.53 \; MeV$

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36#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the energy of reaction of the pr::ffi8p ,+7a.i ;t 9 xmgiedk*6zxu .dzylcvr ocess $^9_4 Be \;(\alpha, n)\; ^{12}_6 C$?

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37#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the energy released (positive) or absorbed (nega,nmz, 3rp;tzglq h4)2-jdrcu tive) in the following re 4 ,z mpj-z 2dr;3ng,q)clhurtaction? $^3 H \;+\; ^3 H = ^4 He \;+\; 2(^1 n)$
The isotopic mass for $^3H$ is 3.016049 u
The isotopic mass for $^4He$ is 4.002603 u
The isotopic mass for $^1n$ is 1.008665 u

A. $0.0122 \; MeV$

B. $-0.0122 \; MeV$

C. $11.3 \; MeV$

D. $-11.3\; MeV$

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38#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An X-ray technician takes an average of ten X-rays per day and 80 fg5jcwej.xeerq4g3x6pn/+ s mu2 rreceives 2.5 mrad per X-ray. What is the total dose the technician receives in 250 worki4jfs e386wgp r ere5un2jg 0x/ +xcmq.ng days?

A. $2.50 \; rem$

B. $5.00 \; rem$

C. $6.25 \; rem$

D. $7.75 \; rem$

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