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习题练习:Physics Unit30: Nuclear Physics and Radioactivity



 作者: physics   总分: 71分  得分: _____________

答题人: 匿名未登录  开始时间: 23年05月01日 14:22  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the atomic partki5 bdw(3 ei5q *ni,lticles has the least mass?

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The mass of an atom i g-y4c2r sl+07vl 7n):piqtvxr0* ndiikje5is

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The hydrogen nucleus consistyn3u 2pzi*w 9lwd gb gx(,.5hbs of

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's atomic numbhg(wpg.h4.*1u3cf4ly w j(ap dc 0hyker is determined by the number of

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom's mass number is determined by the number ig(k+1y vuyw ;of

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an atom's atomic number is given by Z, its atomic mass by A, and its n-tge i*l7bczr(zs5wkh ;j csf/)/5 cs eutron number by N, which of the follz sslzr/;(-tb5 *s 7ei ccwk5/ghfcj)owing is correct?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a neutron is emitted from an unstable nucleus, the atomic v,-o7dr j(i *nucaad; mass number of the nu i; da d,n*av7uoj-c(rcleus

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The number of protons in 5gx cob ;kh0.403gdjaa7ud iaan atom is

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  There is a limit to the size of v. hd bw6kxb);x, pe0wxr86omeo/j0t a stable nucleus because of

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Atoms with the same atomidujct-adttguwv 87 m:;-2 5crc number but with different numbers of neutrons are referred 7vtw g5;crdu2t-u-admcj:t8to as

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Isotopes of an element have nucle(tzj. c;l.9 n1ipjyeg i with

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic mass unit isxw 5m; l8qbab9 defined as

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the masses of its separate protons and neutrons, the total y;ss(f n8eq.emass of a stable nucles (;efesq8ny .us is always

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When nucleons join to form a stablwam20srwqirv10 w ,n1e nucleus, energy is

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy of a y0j syh q im+9:*/wm.v5 73tjotxyjfunucleus is contributed to

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleguo* .d).fpp d2 yoy)kon is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The binding energy per nucleonqbii gs.tl *9x)* ty*j

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following statements conce1p iz52;+.wyakcxitoa2 wb 9 grning the nuclear force is false?

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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Compared to the electrostatic force, the nuclear force bh8gt/xe69eui1bwv0 t* omu30nox, tx etween adjacent protons in htx w60egmoux/08e1 x9it3vn*u,bto a nucleus is

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha rays can penetze:mca /t;uv 6rate

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Beta rays can penetrat2 ucjg)95a8jqmhomx9hi:ho /e

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Gamma rays can penetranu jfm i2x(4q:-xo4 ggte

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An a particle is also known14c7 n*d*. lihirab. pc,buar as

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b-$ particle is also known as

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A $b+$ particle is also known as

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gamma ray is also knowni n; w :en t,-b/akzkfv6 kck4s/u+p:t as

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An alpha particle will be attracted to mtkm.nm:j+fq ,k.a3ga

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Alpha particles have an atomic mass ewq9lo,(m9ezr 4 (/umr.kwahequal to

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted from an unstabli kfcaqb5e0oi r, 1a0;e nucleus, the atomic mass number oqef 5 akr ib0ai;o1,0cf the nucleus

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When an alpha particle is emitted from an unstable nuis47 l,/ sxbt1 p;e ux;cafid-cleus, the atomic number of the nuxi7;e -la1 i sdtx4;/subc,p fcleus

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The expression (MX - MY - Ma) x 9se tmo 5op/.r +hpz6y931.5 represents

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In beta decay

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b+$ decay

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During $b-$ decay

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the following is most nearly the same as ahu.5hm,un jm7p1i ;sf -w(evmv:g3 om gamma ray?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When a gamma ray is emitted from a, ;ywqip yw).in unstable nucleus,

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which particle has the mx5l,-pbovi -vg7u m 1hk( i-xgost mass?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In all three types of radio /m9smr94j9ln wfuo+/7wtn d pactive decay, what value is conserved in addition to electric charge, energy, and n twu9/+ /w4rdm9ns 9 ljopfm7momentum?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What happens to the half-life hy l,6co,jx mgj5f(r ;of a radioactive substance as it decays?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In radioactive dating, carbon-14 is often used. This nucleus emits+baz (-2q6 aknxbyw b7 a single beta particle when it decays. When thixn(w -ay+b6bkzqb7 a 2s happens, the resulting nucleus is

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector that uses a magnetic field to curve ctkt+a0s*0mobe 58zh oharged particles is a

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The type of detector tviazk ola5 3.l*83 j8jjut6c) :rzceyhat uses liquid hydrogen is a

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Cloud chambers have been replaced by bubble chambovnsr2a ) n24 rotxv5(ers because

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic mass number of 14 and atomic number 6 has how magsrgo9zmq6d e pitw1/ 2u:8 ,zny proton:9g6 8es qtprd,zou/12 gimzws?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomicqwpoe -3/e zt/ mass number of 14 and atomic number 6 has how many neutro-zw/ oteqe/p3 ns?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, respehj-2d/. clpiy ctively. How -cy2ihjp dl ./many nucleons are in one atom?

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 areep)wca nuj+efj8q8- hm,rd zp5t(z0 5 20 and 39, respectively. How many electro-te uc,fm jh(rea8qz 5ndpj)z p85w0+ns are in one atom?

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51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number for calcium 39 are 20 and 39, r1affzew k:*nor- 0(toespectively. How many protons are in one atom o w(*en1 -f0zo:tarfk?

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The atomic number and mass number fory/ht f rwbo:+. calcium 39 are 20 and 39, respectively. How many neutrons are in on/ o+hb wtyfr.:e atom?

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In a 93 Nb nucleus, the number of protons, neutrons, and eleckby5y40l.hg;:baqz mtrons is 41

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How many protons are there in th lw8;me jw1f -k68ay u8tcr,bze carbon-14 nucleus?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If an element of atomic number 15 has an isotope of maswp16ltz:zw z8s number 32,

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Calculate the binding energy oj4z75 d .kbo k5zz0qj7gpy2vsf $^4He$.

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How much energy is required to remove one (3gsm5 quzx 2fproton from $^9Be$?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic number 88 goes:o + ziwdurc90 through alpha decay. Its atomic number is nowu oci:0r9z dw+

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An atom has 98 protons and 249 nucleoyo)6y(42wphh3h g ylvns. If it undergoes alpha decay, what are thh (6pg4yl2yo h3y h)vwe number of protons and neutrons, respectively, in the daughter nucleus?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A carbon-14 nucleus decays to a nitrogen-14 nucl;y;fmvi 4nem;eus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-1fm;mi;y e4 ;vn4 has a mass of 14.003074 u?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An element with atomic numbejq(h)xh ;7y.w (n wyxyr 6 undergoes $b-$ decay. Its atomic number is now

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the half-life of a material is 45 years, how much will be left after/f fix2dlqatc-055jj 100 years?j- ali5 0ff dcx52tqj/

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the probability that an atom will wsiw w boem;e 13lx*df80, h9bg;5u x(vzm1sn decay this year if its half-life is 247 yea98gs3b0umm,eovs;w(w ;zixe b1lhx5 f1n w d* rs?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Thallium source was certcjww v9777vg2* wjvtu(o mk u8ified at $10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive sample has a half-life of 10 min. What fraction of the sampn7 hl8 i5r2dxvle is left after 40528ndrvlh 7 ix min?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The half-life of radioactive iodine-15wf else+2 f*j s75qcw37 is 8.0 days. How many iodine nuclei are necessary to prod7f 5fec+s seq*lw2jw 5uce an activity of $1.0 \; \mu Ci$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A radioactive substance with a half-life of 3.0 days has an initial activh:z pwp-x k .hayeq.kvw9n:-322wgfnity of :3e a2kk fx:2 y.- wn9.wz-gnvwhqhpp$0.24 \; Ci$. What is its activity after 6.0 days?

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The radioactivity due to carbon-14 measured in a piece of a wooden casket froeehq0hyk j, /ex 6p37zm an ancient buz3eh/hx67kp ejy,e 0qrial site was found to produce 20 counts per minute from a given sample, 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

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long would it tal 1 a u(z2.pdqrg+f 7hm(kgcg:ke $4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  How long will it take a ww:2 tt8d3mf zx8yjhs)69mdm$4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

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