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 of 1( qcgj3b9p9 x ajgyjpphv 8oe qe3-sxdo4- 4.particles, it is po hg39 .oq48( ecp4x x d1s3 eog-j9jqpavj-pbyssible 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 is zu6 e yrlc6hmos6v; */$1.6726 \times 10^{-27} \; kg$ 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 value i)t zc*4h(v a51: micsfrg/nl ys conserved in addition to electric charge, energy, ayv 1(cmz)n*stah4: gc5f lri/ nd momentum?

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 producing fluorine-18 and an 0zt-had s+bp5 v.b-tnother particle. What other particle isb-b5tzas+d0n-.vth p 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 exothermic if the total kinetic energ b: zsrvw1d+oii9z6 u7y 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 be56jwgsif- :xs endothermic 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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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The process during which a heavy nucleus such as uranium somb.fqtwrn7:u uq. udka 5s255: lic)plits into two intermediate-sizrfdc osa. :255mwquiutbq5)k u:.n7 led nuclei 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 larger ones is referfu6c z 2n51imzred to as2iu 6 zmnf1zc5

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 of a nuclear ficndv0 o6.ra8nl0 8fhlssion reaction compare to the mass of the original eln6ol h v0f 8nd8r0.aclements?

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 a nuclear fusion rm sjutv-2 3ovx9a (h1l hqs;*reaction compare to the mass of the original elhul1axsv* o hr9m-q3v;2s (tjements?

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 abh gc qipp 6+s-wv5q-6s hydrogen undergo fusion,

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 fissi*tzswrt.r1; jon 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 ofzlpl49 e my72nb1 t4.nh)b6hpg0b vvx the Sun 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 thmugm6 wqn jj:q6zd).zo0 m1u8e Sun, results 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 i8p sj: -rv6ppenergy the 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 ur3rj)u ; 8uy3c1a(wdefuvcr:y anium 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-kiloto:6nttu njk..s*4)66 jv f )nxojvyajkn" bomb. What does 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 term5 n e453t0j2a8k( 1 ccc nqx0zjyldq5nl(vpys "critical 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 cance/fld)3 yx) s()gouv occur

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 radiation damage to living-4to3q hojal 2ryhg581.y2qq(wmkt r 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 stop beta partb 2xn*uk y6s5gicles?

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 p/16hk clwb ow cj,6j/5wb;f/ mv:gparair 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 6 6vfi6 3ypexxunits used to describe radiation dosage in humans excepxpv e3x666fyi t

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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 the effective dosefup 1 h4k+sy3t 3/5n;fp cn,lzjj.xlp 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, mt 7s cne;4/c*pqi,tmit can change into

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 reactiohpy99gy 7og:ih3:c rn5 t3kwon $^{235}U \;+\; ^{1}n \rightarrow ^{141}Ba \;+\; ^{92}Kr \;+\; neutrons$, 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 reacti)sawx3s r/qubid:x 7bl sq ;-.on: $^{16}_8 O \;+\; ^1_0 n \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

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 nrh(kil rxi. ro()vd :/l5l.kuuclear reaction: $^{16}_8 O \;+\; ^4_2 He \rightarrow \;\;\;\;\;\; \;+\; ^{19}_{10} Ne$

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 nucleara;u tbu01ya.l9h/q bf reaction: $^{38}_{19} K \;+\; ^1_1 H \rightarrow \;\;\;\;\;\; \;+\; ^{38}_{20} Ca$

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 following nuclear reaction:(j b7w,3mulck $^3_1 H \;+\; ^3_1 H \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

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 j7eb hd:bf(5ho*g df4reaction: $^{27}_{13} Al (\alpha, n)$ 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 part 81wuczd l; xlc8,*a25nbttbficular reaction is -2.4 MeV, and the reaction's threshold energy is 9.60 MeV. What is the ratio of the mass of the incident particle to the mass of the stationary targelfdu8acc t5* 2w,1xz n t8;blbt 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 reactie1+xk a x h5mav d5mos ,17/mpnto-ptg58ow6hon: $^{14}_7 N \;+\; ^4_2 He \rightarrow ^{17}_8 O \;+\; ^1_1 H$
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 follk2 2ku:6xm s*7 ep8qjulyw ::vhv;g ayowing reaction: $^{14}_7 N \;+\; ^4_2 He \rightarrow ^{17}_8 O \;+\; ^1_1 H$
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 fols5pv z f9(8bcllowing reaction? $^{7} Li \;+\; ^1 p \rightarrow ^4 He \;+\; ^4 He$
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 *xxd/ :/ -pu6fiir jwqprocess $^9_4 Be \;(\alpha, n)\; ^{12}_6 C$?

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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 (posit e3nlmwv rd;:+ive) or absorbed (negative) in the following reactiondr3w + evnml;:? $^3 H \;+\; ^3 H = ^4 He \;+\; 2(^1 n)$
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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An X-ray technician takes an average of ten X-rays per day and receives 2.5 0yslowu:d 2.ahh;oib, xs*2cmradxh;sh2.wody0 la:c*b,2uosi per X-ray. What is the total dose the technician receives in 250 working days?

A. $2.50 \; rem$

B. $5.00 \; rem$

C. $6.25 \; rem$

D. $7.75 \; rem$

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