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

1#

When a target nucleus is bombarded by an appropre4 y )dr 7x(rz1d7gxb5b3sa 1p*prsvx iate beam of particles, it is possible to yvr3)rgbsax7e bdx(1xs1 rzp 5p*7d 4produce

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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The mass of a proton iscjx. t)hlfa lks 4wugb-(7bir:9n ,g ( $1.6726 \times 10^{-27} \; kg$ 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a nuclear reaction, what value is concemstu12fg chwgb+uq b3+9 lzf3f :30served in addition to electric charge, energy, and momentum1gh: t329bwqffc+gsb+z33 ufe cm lu 0?

A. atomic number

B. neutron number

C. nucleon number

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 fluorineutzw8n : xor4mp c *s)( )6t1wmqyl1ys-18 and another particle. y1) wyoxsc*( tq:s 6 um8rlzp m1ntw)4What other particle is produced by this nuclear reaction?

A. a neutron

B. an $\alpha$ particle

C. an $b-$ particle

D. an $b+$ particle

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 9l oujvr z fjkbl7(2jspetm8y+xvh5 2t9 b838the 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 gtz j-:1lx nn9cjinh5r-om60 tpj )4k 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 uraniu (b*/qfk69 ebbrm tf(3fl)apem splits into two intermediate-sized nuclei after being struck by a neutron is referred to as/f)fptqmeab69f*b ((e 3kbr l

A. nuclear fission.

B. nuclear fusion.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 lvj t6:nwd/db:/ea *tlarger ones is referred to a6djbtw n/d:/* ta:vles

A. nuclear fission.

B. nuclear fusion.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 fission reaction compare tog8rvi w;;0h/+ql;yfz 4qcqi o the mass of ty; ;zq /fiq+hq4vow8 rl;cgi0he original elements?

A. greater

B. less

C. the same

D. varies according to the reaction

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

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 reaction compare to the ma9g0tz tn )ulb4ix4;ez ,)jkyb ss of the originaxi4)g0ztunj9z ;e y k,b l)b4tl elements?

A. greater

B. less

C. the same

D. varies according to the reaction

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When light elements suchs4tni4 gz:lt3 as 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The fuel for nuclear )j0kc) 0s tri etc++qwfission is

A. Hydrogen

B. Helium

C. Uranium

D. any radioactive material

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The fuel for nuclear fusion in the centeryrl.p c/)ur (6kcnx-,zqlna+ed;x h 9 of the Sun is

A. Hydrogen

B. Helium

C. Uranium

D. any radioactive material

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 rq0q 1tpqq/ xxk(a2 qtk;w0m ;Sun, results from

A. beta decay.

B. alpha decay.

C. fission reactions.

D. fusion reactions.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the source of the energy the Su a(q 7:tasm :nv*1slqyn radiates to us?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the principle difference b.hx 9zo-z(kg vetween a hydrogen bomb and a uranium 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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. g py cx3(f3zgq13v4jxz,;hn t 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the meaning of the term "critical m+qvl4 xfd ,h(wass"?

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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A chain reaction can o g5 xeu)tl:iu 9dd3hn:ccur

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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The chief hazard of radiation daxj m3 kiifol * n-u//fguh54l7mage 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.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is necessary to stop)ki ) lslvvitr)).kt ) beta particles?

A. air alone

B. paper

C. metal foil

D. thick metal

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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 ( 1.0 分) 切至整卷模式搜藏此题

What is created in pair produ y.zt wo7c1srce ,7a-oction?

A. a proton and a positron

B. an electron and an antiproton

C. an electron and a positron

D. an electron and a photon

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

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 radin . )v1,znp1j te; sp+aih5ajxation dosage in humans exceptsp1t5pav+zhn1 x .eij,);n ja

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A unit that measures the effective dose of radiation in a human is jpppf9* 0i ki y*(zbayv,b0*mthe

A. curie.

B. RBE.

C. rad.

D. rem.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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,e-s mj7 x 2o-k; vb/onl2b fvvu 9ft(9ab:r8ha it can change into

A. lead-208.

B. lead-206.

C. tellurium-208 (Z = 81).

D. bismuth-208 (Z = 83).

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In the fission reactinymk ,56bb4xz on $^{235}U \;+\; ^{1}n \rightarrow ^{141}Ba \;+\; ^{92}Kr \;+\; neutrons$, the number of neutrons produced is

A. zero.

B. 1.

C. 2.

D. 3.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear jjrv+ 7o8.kz5 -xu6(rjvewmf) *fd ggreaction: $^{16}_8 O \;+\; ^1_0 n \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

A. $^{12} C$

B. $^{13} C$

C. $^{14} C$

D. $^{15} C$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

28#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reaction8tv q6-x89 evo )msqlg: $^{16}_8 O \;+\; ^4_2 He \rightarrow \;\;\;\;\;\; \;+\; ^{19}_{10} Ne$

A. $^1 p$

B. $^1 n$

C. $^2 H$

D. $^3 H$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

29#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nu 8q5ozl;spz2 oclear reaction: $^{38}_{19} K \;+\; ^1_1 H \rightarrow \;\;\;\;\;\; \;+\; ^{38}_{20} Ca$

A. $^1 p$

B. $^1 n$

C. $^2 H$

D. $^3 H$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reactiowc6tm wr ;.z* *xxxu:pn: $^3_1 H \;+\; ^3_1 H \rightarrow \;\;\;\;\;\; \;+\; ^4_2 He$

A. 2($^1 p$)

B. 2($^1 n$)

C. $^2 H$

D. $^3 H$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

31#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Complete the following nuclear reaction992h;tqp wty v: $^{27}_{13} Al (\alpha, n)$ produces

A. $^{28} P$

B. $^{29} P$

C. $^{30} P$

D. $^{31} P$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

本习题练习题目来源于51fly国际课程 (https://51fly.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，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

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 -2i1 c*4uny;fwd.4 MeV, and the reaction's threshold energy is 9.6iu cf;*4ndyw10 MeV. What is the ratio of the mass of the incident particle to the mass of the stationary target nucleus?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

33#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Find the Q value of the fofp em1j9 d)mgt5 gt7izy77;p cllowing 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. -0.001279 u

B. -0.002179 u

C. -0.007219 u

D. -.0.009721 u

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

34#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Find the Q value of the following relm2 8 e+p(rx8ve4ufzqaction: $^{14}_7 N \;+\; ^4_2 He \rightarrow ^{17}_8 O \;+\; ^1_1 H$
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. $-1.279 \times 10^{-3} \; MeV$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

35#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the Q value for the f72ecv 7bmaqg 1n/u xfj5nbc6,ollowing 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. $17.53 \; MeV$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

36#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

What is the energy of 90xkm , t,miahreaction of the process $^9_4 Be \;(\alpha, n)\; ^{12}_6 C$?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 (negative) in the f,xx+ 6i6pf- yzrhb xk4ollowing reaction?r kxy64+ ,6xxp-fzi hb $^3 H \;+\; ^3 H = ^4 He \;+\; 2(^1 n)$
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. $-11.3\; MeV$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 uvrj/c:v o.8k r4kjv- receives 2.5 mrad per X-ray. What is the total dose the-/rkvu4c okj:.v vj8r technician receives in 250 working days?

A. $2.50 \; rem$

B. $5.00 \; rem$

C. $6.25 \; rem$

D. $7.75 \; rem$

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

账号		自动登录	找回密码
密码			立即注册

网页聊天 (离线可收发)

加微信咨询 (申请一对一课程辅导，加本站学习交流群）

电话咨询：

发帖咨询：

查看帮助：

未使用图片

本次作答已使用

1	2	3	4	5	6	7	8	9	10
11	12	13	14	15	16	17	18	19	20
21	22	23	24	25	26	27	28	29	30
31	32	33	34	35	36	37	38

1	2	3	4	5	6	7	8	9	10
11	12	13	14	15	16	17	18	19	20
21	22	23	24	25	26	27	28	29	30
31	32	33	34	35	36	37	38

1	2	3	4	5	6	7	8	9	10
11	12	13	14	15	16	17	18	19	20
21	22	23	24	25	26	27	28	29	30
31	32	33	34	35	36	37	38