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 caused 7.rmnazu zn6j df b-*4by

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 caus5t ;v tuqia) odra8m14ed 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

The bond energy for a hydroge-jh6dl)ek )ns,w je z a4 c2cqc4 x8n9p/ruvp2n molecule 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 cdnlolm+6u c tif1cq(*y,, l+iaused 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 strongestjho tog*fh o,e (h-.wva70u)e 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

In general, which of the following is the weakest bnr. 5,fdkxa* oond?

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 eya21bhdsot4 j t: j*s9nergy difference between adjacent dj*1t2h:ysb9at j4osenergy 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 s8 33uz -ty xh8ho2lz q0)grj,ftaea )= 1 quantum state has energy E. The same rotator in the L = 2 quantum state will r0,)zsa2xfuotaj)ge 3q88zl -hh y3thave 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 oscilluur:w4ugrg.ji o:. y 8ator 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 vibldc-4x zx0)8grz o:ra rator, the energy difference between adjacent quantuczg-ldr:0x xzr ao)84m 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 mechanical rotator has a r k 8evs+8hozbk:ee(ky/r2 0l qotational energy oob8 eee(v:kq l8krk0+zy h2s/f

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 iccedgm6)f k r2 )kxf*1blg92hts ground state has energy E. This same vibrator in its thirdd cfkx*l hk2rmc)) 9b6 21ggfe state 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 caus *h(/ram4:awo 8lq8w tvpomieb,i /6jed 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 highest energy band containing electrons idmg x os gc5-egxj81g9.y,0itdst)f , s

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 highest energy band containin b c3rs 4nbfj9m0g cx5.w9h7keg electrons, called the valence band, is 09 mgnxr5w7.3sh94bckebjcf

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 semiconducto1d; poue+wrcuq386dxr is 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 semiconductk.u.qe)n5t-xvohn j-wp.x q0: 9cq o gor is 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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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a p-type semiconductor, a hu)x 5usel6*aop x l-8vole 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 applis3t1e 6kp,l oded across a p-type semiconductor, 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 diodek+c n0*d*,x6n rpyj hr with the positive terminal to the p side and the * ,dy6pnr0xj+*cnhrk negative terminal to the n side, then diode is said 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 semiconductor sectiony-g6( y1( djnims8x1/ynw pdfn,rbx1 s consisting(xny s m6fi8 j(1ybpx1 /n,dr-n1gy wd 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 mechang u 49ng3z9gtvical oscillator 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 ham9:v;rox( 4xaezmj2zp ch 2 s8s $2.6 \times 10^{-5} \; eV$ 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 h3m arzq47i)urg. 1xv- f(shxlas $18 \times 10^{-5} \; eV$ 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 ltqxws 4x k6;1ej5n1 j(in eV) for a diatomic hydrogen molecule in the L = 2 quantum state. (The equilibriumqnlxstjxe1 4;wj 61k5 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 quantum state with a)vea f2t:w2q.2-l/)m xtlguguz1bko frequency of gt beu-mq wu t)2)oz /22 xlgva.:1fkl$2.0 \times 10^{13} \; Hz$. 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 ckdgzoply;h a h;1*eymfui a 529t/b0:ertain semiconductor is 1.25 eV. What is the threshold wavelength for oyy0* 1e9f i;mo d5ua2 bhapgl:/t;zkhptical 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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