Physics Unit29: Molecules and Solids - 51fly国际课程 (51fly.win)

?作业考试练习?国际高中通用物理?Physics Unit29: Molecules and Solids

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习题练习：Physics Unit29: Molecules and Solids

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作者: physics 发布日期: 2023-05-01 13:57 总分: 27分得分: _____________

答题人: 游客未登录开始时间: 23年05月01日 13:57 切换到: 整卷模式

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Covalent bonding is caus86yrkrj/y 4 i+-uhs lred by

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Ionic bonding is caused byta8b76rhg(xqc(b sp1a;d s v:a3h qj;

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

The bond energy for a hydrogen moleculi8hgj56 uifz7 e is

A. $2.5 \; eV$

B. $3.5 \; eV$

C. $4.5 \; eV$

D. $5.5 \; eV$

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

Van der Waals bonding is causeddbdku/- 8xzt7h94t9l w ce8lr by

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distribution around neutral molecules.

D. atoms bonding to hydrogen molecules.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of the following is the strongest bond?jd+;b2 wyh6 q.7nhp-eupvt* 7ar)ios ;p:vze

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of the following is the wea ymd/r bj2 ltrl.fmdor77rcl6:)h 0. dkest bond?

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a diatomic quantum mechanical rotator, the energy diffe i brtxj,:mj1 y8;oy2ni2ls 0crence between adjacent ener xcyb;j10imn iy2tos,j lr82:gy levels

A. increases as L increases.

B. decreases as L increases.

C. is constant for all L.

D. varies randomly as L increases.

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanical rotator in the L = 1d58fzjy1k ;z+ew r: lat0q yp-:khb*o .k -edr quantum state has energy E. 5 -taz hwy1:d;y kk-r+dkr*.8q epfozj l0be:The same rotator in the L = 2 quantum state will have energy

A. 2E.

B. 3E.

C. 6E.

D. none of the given answers

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单选题 ( 1.0 分) 切至整卷模式搜藏此题

In its lowest quantum state, the energy of a diatomic harmonic osci bz+am d57s qaii6:t6kcn,,z sllator is

A. (1/4)hf.

B. (1/2)hf.

C. hf.

D. (3/2)hf.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a diatomic quantum mechanical vibrator, thl.cbqm;t *+.qskwqi 4n 5pmd 2e energy difference between adjacent quantum sta nt*mkw2bcq q+ldi5;m4qs.p .tes

A. increases as v increases.

B. decreases as v increases.

C. is constant for all values of v.

D. varies randomly as v increases.

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In its lowest quantum state, a diatomic quantum mechanica+ dz+4tf+ y+sytwl9mml rotator has a rotational enerwd++9 +mltfy+yt szm4gy of

A. zero.

B. $h/2 \pi I$.

C. $h/\pi I$.

D. none of the given answers

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanical m f9sv s7zv88,sq4b6n j1veq+s +qy etvibrator in its ground state has energy E. This same vibrator in its third state6vq,zf 1sbv798nvtsm 8sqe+esyq+j4 has energy

A. E.

B. 3E.

C. 5E.

D. 7E.

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Metallic bonding is cafj5i:)k-q iwkfne nk 9l/84zmused by

A. the sharing of electrons by all atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a good conductor, the hig*mn 8 .(hdv,kt ahlbg7)x4d yaagv 28nhest energy band containing electrons is

A. only partially filled.

B. completely filled.

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a good insulator, th6uiok:/ h,tfiv:o9.- nndgzde highest energy band containing electrons, called the valence band, isdkhv o fz d:,9.-/:6onitignu

A. only partially filled.

B. completely filled.

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An n-type semiconductor isp do jw:1f(8-mdn/zcs6,jh uq produced by

A. doping the host crystal with donor impurities.

B. doping the host crystal with accepter impurities.

C. pure crystals of germanium.

D. none of the given answers

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A p-type semiconductor is producedyggxs:; bzf(): :1;e lbnb arz by

A. doping the host crystal with donor impurities.

B. doping the host crystal with accepter impurities.

C. pure crystals of germanium.

D. none of the given answers

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a p-type semiconduct7kq ( hvd+ g0n+r0wbywor, a hole is

A. a donor atom.

B. an extra electron supplied by a donor atom.

C. a missing atom in the crystalline structure.

D. a region where an electron is missing.

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19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a voltage is applied across a p-type semiconducty9mmu u.o1 a75l e+fyyz 4i4teor, the holes

A. are destroyed.

B. move toward the positive electrode.

C. move toward the negative electrode.

D. do not move.

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20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

If a battery is connected twr -*r 8,ov kldwgdr2cn/5 ys9o a diode with the positive terminal to the p side and the negative terminal to the n side, then diode is gy-r*, d/ rd8cs5 lvkwo9rn2wsaid to be

A. forward biased.

B. reversed biased.

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21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A simple junction transistor consists of three sem *r1fsr8evr (oiconductor sections consisting rerv or (sf18*of

A. pnp semiconductors.

B. npn semiconductors.

C. either pnp or npn semiconductors.

D. none of the given answers

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22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanical oscillator)+/ilzkrca m + has a moment of inertia of $7.73 \times 10^{-45} \; kg \cdot m^{2}$. What is the rotational energy in the quantum state characterized by L = 2?

A. $2.27 \times 10^{-5} \; eV$

B. $2.72 \times 10^{-5} \; eV$

C. $7.22 \times 10^{-5} \; eV$

D. $8.71 \times 10^{-5} \; eV$

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23#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule hasv23ww j*ebfufxezlt4m 2ux pq2 )-n.- $2.6 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 1 quantum state?

A. $3.4 \times 10^{-6} \; eV$

B. $5.3 \times 10^{-6} \; eV$

C. $7.8 \times 10^{-6} \; eV$

D. $8.7 \times 10^{-6} \; eV$

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24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule haujytzp8wfd)m-( y)t, s $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state?

A. $9.0 \times 10^{-5} \; eV$

B. $6.0 \times 10^{-5} \; eV$

C. $3.0 \times 10^{-5} \; eV$

D. $0 \; eV$

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25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Estimate the rotational energy (in eV) for a diatomic hydrogk2g 6)-ff urzw7fck:cen molecule in the L = 2 quantum state. (The equilibrium separ -u7k)cz2w6f:c f rkgfation for the H2 molecule is 0.075 nm.)

A. $0.011 \; eV$

B. $0.022 \; eV$

C. $0.033 \; eV$

D. $0.044 \; eV$

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26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule is vibratinghx)emaojf2 xz;:c1 o5z r)4rv in the v = 1 quantum state with a frequency of ; h1)4 fz:x2cerj zm5r) vooxa$2.0 \times 10^{13} \; Hz$. What is the energy of vibration?

A. $0.041 \; eV$

B. $0.083 \; eV$

C. $0.12 \; eV$

D. $0.17 \; eV$

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27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The energy gap between the valence and co(ind8s im. ub/):hdkq nduction bands in a certain semiconductor is 1.25 eV. What is the 8dn ()h bi: kq.i/sdmuthreshold wavelength for optical absorption in this substance?

A. $599 \; nm$

B. $959 \; nm$

C. $873 \; nm$

D. $995 \; nm$

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总分:27分及格:16.2分时间:不限时

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