Physics Unit29: Molecules and Solids - 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 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: 匿名未登录开始时间: 23年05月01日 13:57 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Covalent bonding is cau) z chap(;:jcin7.p wr7 yq(ijsed 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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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Ionic bonding is caused ()pj8 yc gh+lftwuddg*au9+mxr f 5.2 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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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The bond energy for a hydrogene j66 y4y/ jxajr6uhliet c)g5 gx4)j lv2(fl( molecule is

A. $2.5 \; eV$

B. $3.5 \; eV$

C. $4.5 \; eV$

D. $5.5 \; eV$

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Van der Waals bonding is catecg 9xdxq50rv ppc ,3,i-ow: used 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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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of theo0a m/*ikw3yiild 07d following is the strongest bond?

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of the following is the we :1foqecz nfv8*x3a(qakest bond?

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a diatomic quantum mechanicalc vc5y-icgy*pw1yp e mug;y) 7uz51r1 rotator, the energy difference between adjacent energy leu1) cp;y grm1ce yigu5vy 15-c yzwp*7vels

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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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanical rotator in the L = 1 quantm /f;l5rxmwt;72vn5z2n d msvum state has energy E. The same rotator in the L = 2 rw tm/2s5 ;ml;x nz2vn5fmd7vquantum state will have energy

A. 2E.

B. 3E.

C. 6E.

D. none of the given answers

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9#

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 oscillatoksq9 uong .afbk4 -c0/r 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 mechazgtnvg nj*8 /5nical vibrator, the energy difference between adjacet8/gvnzgn*5j nt quantum states

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 mecha;u,o zcc:t hyj: u)g:hnical rotator has a rotational energt :;u:h,cyojzcgu) : hy 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 vibrator in its ground state has energy E. T88mg *mcgxay 0his same vibrator in its third st88 agmcg y0mx*ate 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 caused b1o435y* jam4yq elpsx y

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 highest energy bandxk ,ybahn ;/t )1scr/v 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, the highes d,)qd3(nrk0uzqd/l-v/vm;86upkvkt b n4u mt energy band containing electrons, called the valence band, imtq 84d,/ 63kkvnzp0vb/dvun d kqr( u;m)ul-s

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 is prodmgx* p+ba; ,;p0r/iwfcdq1;w up9kik9k9e st uced 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 prodys*d *.sodfg oioc.l 5 +tcj2j;;fof.0itc o1uced 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 semiconductor,2f ib40x. 1opmbafmo2 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 semiconb2l0ufkaw y5+ldv 8 d(ductor, 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 to a diode with the positive terminal to the u bt+hzh 7ho)2vihv3 +p side and the negative terminal to the n side, then diode is said tbz7h+ t)h +viuo2hv3h o 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 thrr7d; u 0lhpit-ee semiconductor sections consisting ot;p7i l-u rd0hf

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 has a moment of8rgevw.4 q/ kjwp)iyk*7: duugsnru e) 2:qq. 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 hampu483-mze l tw*c fn:s $2.6 \times 10^{-5} \; eV$ 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 ) q, wma1lbluc,,b/uohas $18 \times 10^{-5} \; eV$ 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 ex, dpx)-n:bhl3 )id zenergy (in eV) for a diatomic hydrogen molecule in the L = 2 quantum hpe:-idnd)zl b) 3x,xstate. (The equilibrium separation 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 vibrating in the v = 1 quanturm2 3pk5a/vn7pd ouyh5x0p s1s4;wjk m state with a frequency of pwk1o; my7s/hr4 asnd30u25 5pkj pxv$2.0 \times 10^{13} \; Hz$. 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 conduction bands in a cert s i,1+k-o8 pye7ry3 (tw2yh ajjv y0/:wwnefeain semiconductor is 1.25 eV. What is the threshold wavelength for optical absya+71s8 jyw fw,enetokh (0:pv we2jr i-y 3y/orption 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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