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中大校外大埔課程
lar廿七日。沙田工業外在二十本是老師願意供應的書,現烤和触 六日:屯門工業學院;一百五十地可供廠,另籌間找翁現時香店末。
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·香港中文大學被外 | ENG L 1 SH,小組,計算部本審閱工作
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1989 中學會考預習專欄
明德出版社 MILL & DALE PRESS
History (17)
3. Lui
The Causes of the Revolution of 1911 (1)-
Background History
Before I examine the causes of the 1911- Revolution, I would like to examine briefly the causes leading to the failure of the previous reforms and movements.
The Self-strengthening Movement failed to defend China.because
e.
the Qing Dynasty was half-heartedly in carrying out the reforms.
the
WAS
Points to consider 1. Although the movement
new political, economic and soical forces should not bel overlooked.
failure,
2. Thanks to the opening of China and the Self-Strengthening. Movement, al class, merchant-gentry.class, grew in China.
3. Unlike conservative scholar-gentry, they were more exposed to western ideas and values and thus they were! more receptive to western changes.
4. Besides, because of the founding of Tongwen Guan and the establishment of the translation bureaus, many western books were translated.
5. One of the most. translators was Yen Fu.
important
60. As a result, more and mare
intellectuals western ideas.
reformer's were not given 7. Although unconditional support from the Qing Dynasty, especially, from Dixi.
the tempo of the movement was tog slowi
most Chinese were conservative and confucian-minded that they did not. envisage the need to strengthen China. It could be reflected from. the pillars of the political, platforms of the Self-Strengthening 9 Pavement
The Qing officials maintained that the use of Chinese learning for the essential principles and Western for learning
practical applications.
1989 中學會考預習專欄
明德出版社
MILL & DALE PRESS
Physics (17)
Exercise 17 Wave Motions.
C. Y. Mak
(a) Plane waves are set up ba ripple tank by a vibrating dipper and are incident on a narrow slit PQ as shown in the following figure 1.
Figure
(i) Sketch the shape of the wave-fronts on the right of PQ..
(ii) If the dipper vibrates 50-
cycles per second and the distance between adjacent wave. crests is 0.01mfind the velocity of the wave.
y of the yo (b) Figure 2.shows an experiment to demonstrate the wave nature of light by using a ripple tank. A series of plane Naves approaching a reflector
(a)
Figure 2
circular
circular
ret lector
(1) Copy figure 2 into your
answer book, Sketch the pattern ·
of the reflected waves.
(ii) If the circular reflector:
represents a concave, mirrors: indicate the 'approximate position of the focus.
the
were
to
the
Self Strengthening
failure, was a founding of factories, e.g. Tianjin Steam machine factory and Navigation Company, facilitated the birth of Chinese capitalism.
Therefore, Chinese capitalism grew in size and influence.
Above all, the Chinese bourgeoisee and capitalists were alienated from the conservative Confucian China..
10. The birth of the above political forces helped to disintegrate the Qing Dynasty
3.
A
As shown in the figure, a sound wave generator which produces waves is placed in front of a slit XY of width 3 m Three dectors A, B and C are placed behind the opening and they have the same distance from the
but. open
different from perpendicular distances the slit X. Compare (with: brief explanation) the intensities. recieved by the detectors A, B and C if the frequency of the "wave produced by the generator
is
(1) 15400 HS
(11) 110 HZ
(Velocity of sound an air
330 ins
(b) Explain briefly why we can hear round the corner of a room but we cannot see things round a corner.
string. 4 m long carries stationary wave as shown in figure
Figure 4
(a) Copy figure 4 into your answer book and clearly mark the position of node and antinode.
(b) What is the wavelength of this
stationary wave?
(c) If the wave travels with a
velocity of 60 ms-1 along the
string, what is its frequency of vibration?
(d) What is the wavelength of the sound in air produced by the vibrating string?
(velocity of sound in air
330. ins-1)
As shown in Figure 5, 5, and S, are
的認
期五地將今業到
-期星日三廿月一(九八九一三年八十七國民華中
(20)
組小立設會委本課文中
事酬薪員閲審本課論討 供提望校各與卷問發已目書考參六中
校各放發月五四核審已本書作工期首
CONT
盛大
3. Kacz
發出問
委員已
- ENE
11. Besides, because of the Taiping
Rebellion
and
the & Self Strengthening Movement,
regional political
because power grew centrifugal tendency grew since the!
unable Qing Cours was
to stop western imperial encroachment.
12. All the above factors helped to
undermine the Qing Court.
The fate of the Qing Dynasty could be saved if the Hundred Days' reformers were a success.
However, the failure of the movement posed a lot of problems and we should not overlook the following significant points.
1. Empress Cizi were more anti-foreign
tnah before because
a. Western powers intervened in Saving the life of Emperor Guangxu: b.
the ··Hundred
Reformers Day modeled on the western political system
2. The anti-foreign attitude
Empress Part paved the way for tragedy of the Boxer Upp
3. It was. because Cixi
believed that the xenophobic (anti- foreign). boxers could expel, foreigners from China.
The failure of the Hundred Day Reforms convinced the Chinese, that reform from above seemed impossible.
5. Thus, more and more Chinese joined the revolutionary society, e.g. the Revive China Society, the Xing Zhong. Hui.
6. Also, more Chinese believed that
China could be saved
(a). As he walks along, he hears sound of maximum intensity at 0. The next position of maximum intensity is at P. Explain briefly.
(b) If the distance between 0 and P is 5 m, find the wavelength of the sound waves emitted by scurces S4 and S2.
(c) If the frequency of the sound waves emitted by the sources is 300 Hz, what is the speed of sound in air?
5. (a) Figure.
€
shows 3 water traveling from A to Cinm a ripple tank.
20 cm
Figure 6
RK.
三期工作
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4
行
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KEKH
主要是会作
EUR
institutional changes.
The Causes of Boxer Uprising
1.
The hardships of peasants after the advent of western imperialism into China and the growing social and religious conflicts. sirce the Treaty of Tianjin of 1858 led to the rise of anti-foreign sentiments and the people's hatred of the missionaries and their converts.
2. The natural disasters, such
floods and droughts. made. situation much worse.
as
the!
Also, the slogans of the: Boxers: were welcomed by Empress Cixi, when] they had changed their anti-Nanchu stand,
4. By 1900, che Boxers changed the slogan, from "Down with the Qing, destroy the foreigners" to "support destroy the
the Qing and
foreigners.
The rise of this superstitious movement reflected Cixis ignorance and stupidity.
Jung 1000, believing that could expel the Express Lixi. declared 333 foreign powers.
The Boxer Uprising led to the invasion of the nations and the fleeing of Empress Dowager Guangxu to Xian.
***2-323 KDE-961- HR ABES-4X4#D 月期間,將舉辦七個 工業學院:三月三日。 葉及工業的專題講座、 勞工處出現在至三座院:三月一抖。想找的内容包括有閼各行
在兩訓練中心及五工業學院舉辦
華僑教育
勞工處就業教育輔導日 對象爲中學三年級至五年級學生 協助學童認識各種行業
N-BARNEKEN
3.
2. Others
only
4.
5.
6.
B.
believed
that China could be saved by revolution from since the Boxer Protocol af the further damage. authority of the Qing Court.
y of th
below reant
The Boxer indemnity became another: source of discontent of Chinese: peasants because they had to pay more taxes for it.
The firandial burden led to growing number of rebellions and unrests:
Provisional power grew since most Chinese were convinced that the central government was unable to cope with foreign aggression and. internal unrest.
For instance, in 1900, when Cixi ceclared war on foreign power's, 2: number of govertor-generals, e.g. Li kongzhang and Yuan Shikai declared neutrality with western powers.
the As a result,
south eastern provinces. were saved from the 20gression of western imperialism.. Obviously, political and economic -forces grew in size in some provinces.
9. Thus, it can be said that the problem of decentralization became. very acute by the turn of the 20th century,
10. Above all the Boxer Uprising paved the way for the late Qing Reform which, out of the intention of the officials of the Qing Dynasty, could not save the dynasty," but speeded up the downfall of it.
the late Qing In what ways did Reform lead to the downfall of toe Qing Dynasty would be examined next week. In fact, cardidates sitting for the examination should think about the question first.)
Engeror
by
Significance and consequence of Boxer Uprising and the. Boxer Protocol, 1901, 1. More and
and scholars officials believed that only far- reaching reform could save China.
the
more
(c) Apply
60= f(2)
f =-30 Hz
(Ans.)
(b) (i)
(d) The wavelength of sound in bir produced by the vibrating string velocity of sound in air Frequency of the vibrating string
330.
Scirkular reflector
780
= 11 m (Ans.)
2
(ii)As shown in the diagram, the reflected wayes seen to converge to
is the focus.
(a)
(i) The wavelength of the sound wave
produced by the. generator
=
330
15400
deep water
region
= 0.0214 m
The distance AB is 20 cm and the time taken for the vibrating starting at A to reach B is 0.5 seconds, find (i) the velocity of the wave in the region AB.
(ii) the wavelength of the wave in the region AB, and
(iii) the frequency of the wave in the region AB,
(b) Copy figure 6 into your answer.
book-
(1) Using the same axes of reference, show the shape of the water wave in region AB after 0.1 second.
(ii) The wave then entered into a deep water region: 8C and its velocity is increased to twice its original value. What is the new frequency and wavelength of the wave?
Solutions to exercise 17
two sources place 2 m apart. A mon
1(a) walks
from ·A· to
The (i) perpendicular distance between the sources and AB is 8 m.
15
Since 0.0214 m very small compared with the opening 3 m, therefore, the sound wave does not diffracted when passing through the opening. Hence, the intensity received by 6 is greater than that received by A and C.
(ii)The wavelength of the sound wave
produced by the generator:
330
1.10
= 3 m
Hence, the. wave produced by generator diffracted when passing through the opening and therefore the intensities received by A, B and C are equal..
(b) A person speaking in a room can be heard round a corner without being seen because the wavelengths of the sound waves are of the same: order as the width of the openings: such as door's or windows. Hence sound waves are diffracted when passing through the openings.
From
4. (a) Since 5 and 5, are equidistant 0, therefore path difference=0. hence maximum intensity is received at 0..
Constructive interference occurs when path difference-m where m is an integer and is the wavelerigth. As he walks to P, the path, difference is equal ly one wavelength and therefore maximum intensity is received..
(b) S&P = 492+47 = √80 = 8.944 in
S2 = 8446 - 100 -- 10 m. According to part (1)'
A= 10 m - 8:944 m
1.056 m
[Ans.)
(c) v=fX
(300)(1.056)
-1
316.8 ms
(Ans.)
.". speed of sound in sir is
316.8 ms1
5.
(a)
(i) the velocity of the wave in region
20cm
1
-1 AR =
= 40 cms = 0.4 ms 0.55
(Ans.j
(ii) the wavelength of the wave in
region AB 8 cm (=0.08 m)
On the other hand, the wavelengths (11) f = = = = 5. #z (Ans.)
of visible light waves are very short compared with the openings such as doors от windows, therefore, diffraction does not occur and we can not seen things round. a corner.
3. (a)
(b)(i)
vertical disefacement.
胆
36
脚
Figure 3
Figure
42
(ii) frequency † 50 Hz,
wavelength A=0,01 m velocity of the wave v
(ii) the frequency remains unchanged as the wave enters the region BC.
N represents node,
A denotes antinode
new frequency = 5 Hz
(Ans)
fX. 50(0.01)
0.5 ms
(b) The wavelength. stationary wave is, 2 m.
the
new velocity 2x0.4ms 0.8ms
0.8 new wavelength = = = 0.16 m
(Ans.)
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