六期星
日三十月二十年六八九一屦公年五十七國民華中
育教版界新
展發市都面全頃公41海塡
【地新添山鞍馬
整完計設劃規人萬四納容心中市 標地內區成層32過低不宇樓場商
新
及料的核進發
歡樂今霄」現塲轉播賽况。 張翠台
財政司在克誠及其夫人將於十二月十九一的代表等。 葵青節是由葵涌及青衣區議會主辦,葵 紅梅記」及「李後主」各一塲。 日晚為業宵節八大主持開幕儀式,無綫電視 區的期間,其它具特色的節日還有雛鳳 攜芭繕及兒童合唱團等政區團體的安演。,各社區團體,葵府政務處及政府多個部門 萬人舞會,運動賽事及示範,太偶對,葵習 藝協進會,康樂體育聯會,青衣鄉事委員會
·嗚劇團於一月初在荃灣大會堂演出的「蝶影
鄭永浑說,統籌委會成員來自區內的文
收入場費的電影晚會,紅歌星大會串,聖誕一
(特)藝者籲八六,由李月十九日開: 爲居民提供多項免費文娛康樂及社區活動。 为行政獨立之後首次舉辦的大型活動,參予 在會上說,區節是葵青區自今年九月睨荃 始舉行,至明年一月廿四日止,爲期五遇, 期間,將奉行百多項活動,其中包括不 珫署工作的人員達一百人? 葵青第八六中央統籌委員會主席鄭永律
葵靑節下週五展開
爲期五週文娛康樂活動逾百項
開幕儀式無線直播
山市中心發展詳細就圍, 預計全面發展後,將容納
房屋委員會公佈一分席該 昨F向沙田區議會發展及 公頃,全部由填海而來 , 就衝區糰面積約念四十
統的
核心国低可一北市鎮公園 進入商業區的核心,商業 景美化廣塲及巴士總站
: 的核心與南北軸平行而慈
按面臨吐巍港,該處在
時表示市中心區的方向順 築上的主要特色爲商業區 ,由南向北伸展,穿過 統,由PQ主要進路開始 建議中的行人通道系
·沿南北精,主要風區
市中心的規劃及設計概念 拓展藏在說明馬鞍山|
流及青衣區文藝協進會,康樂體育聯會,區
政局,世區內社會賢達及各機構撥歎贊助等。 更有小型網賽事及海外青少年網球隊的示範, 經費支出約一百五十萬,由區議會,區域市
中葵油日,莛盛日及靑衣日。體背活動方面 委員會等全力支持及協助,安排各項活晰。: 內七個分區委員會,社區會堂及中心的管理·芬備日,南朝日,西葵涌日,北葵和日, 此外,亦將先後舉行七個分區日,即東
範
,
愛書區的居民,情緒示屭節的閉幕禮定明年一月廿四日晚上七
的景色 - 又可遠眺對岸偶 特爲他們安排的豐富節目。
料水、大埔、船灣淡水湖
從水平角度而言,ㄊㄧㄢ内情節的各項活動不但樂和一片歌聲中結束。 .
織,亦會加強對葵
涌及靑安區的歸與感。
、
七 樂行
地 用途已作有層次的安排做的事。 因及吐發再復後,而送爽樂節目推罽滅罪訊息 香環,攻通安全及分级直角逐,由元朗大球场,在另日舉行,以便帶白 則為政府,社盛用地。政民同樂日,招待區內豹 防罪的知識,警員招雜松長跑比賽。該爭獎事 候選人了解不深,政務 圍爲住宅發展,再外一冠 在元朗警署成手舉辦置 主要目的是高居民介紹了日本行一項藏馬拉,以致讓民對于新進的 ,以商業區爲中心,其外期日(十二月十四日、秦位遊戲及展覽,重要性將會於十二月十 副主席都在同一天進行 七三五九三查刺·新
行「紅歌星大會串一壓軸晚會,讓區節在紙, 會有約一百五十名運動 建議考慮將正副主席
,有關葵青師八六的詳情;可致電Ci
時卅分在葵涌興芳道连動馬舉行,當換將舉
*府或社區用地邊沿市黨公五千名兒童參加,透過
泡減。直至市鎮公園爲止。 面總面積約爲七萬五千平方米。.. ,故圖製訂馬山第一期發錢的二十萬人口時,市中心所需的商業樓
部有綜合表演、楚大示 醒元朗居民多的滅罪的1千米。没
起步,經元朗防洪,
政府擬推行耕寮屋計劃 鄉局支持唯指條件苛刻
·者亦是微的的邊界,在
一縱向方面而言,商業被心的高度最爲特出,建築高度將沿市中心區向海當日的節目內容 ·委員會爲進一步提大棠爲終點全海||
·局程 小編與新界政務
「著開台從玮研究(新) 第一至五
發屁用途”! 一個位于擬建的市鎭公園毗鄰可俯飴吐露港的地盤,巳指定作酒店
·有射擊練習
識實實現後,市中心將成爲馬鞍山的著名地標, 的住宅樓宇鹰强调縱向方面的錢案,因業婪商不良少于三十二周,建 為推廣市中心的優越及獨特形象,拓展處建議于两平台上面興建
·特訊 跖部公佈
預留內部輕鐵系統用地
料十年後興建
爲监局所定的申請條件 上支持是項計劃,體認 改。
·[特〕新界鄉議局修改會章問題,
·檢討篮園包括:( 涌及大裔長葉的「耕竂上同意,但認爲該局大係,但彼此任期有差距, 局與新界政務署昨日在新界政務署對於鄉議局|層,廿七個鄉事委員 五均進行射犁黯習 屋計劃」,鄉議局基本選程序,宜加以檢討修,以致在選舉後人事有十六日(星期一) 離席會議上行論了在東閔增設委員名額,原則 會及區域市政局互有關,上午八時卅分至下午五 修章事同意交專責組與政務署研究 夏村、香山臺炮區射擊 (二)由于新界都練習,下個由週一至週
·十五日,星期一
將形有
時上時上
市鎮公園外設渡輪碼頭供使用
報日僑
WAH KIU YAT PO
(三)現時鄉議局 上午八時卅分至下午五
4 情况有很大轉變,上午八時卅分至下午五 局宜研究是否符合實時。
年内動用億元
時九時八
批出售商。便鐵路預留地,不過,
一年批地計劃,各商業! 讓,將以前預留作建造。 由米來三個年度內陸續 地收窄,並改爲興建。
潾洗的建築材料。... 發展進度委員會在本年 点俩的政府團體,要在沙田新市旗總人口 高琦。《本報記者攝) 住宅及住宅發展地盤將一內部鐵路系統的执] 滅罪行委員會將於七星 另外雙方亦對論了 公用类笞均藏于大厦內 遊憩用地。她的主要路段。(新)五百至一千二百對白倒 條件規定所有建築物的 外溫內將關設三個鄰舍 接馬藍山及西爾康樂塲三十至八千隻家禽,或 ,外應採用不爱人工交通及運鑿方面,元朗警民同樂日,郑酸局認爲上述條件
發展,而懷而不應超泡在吐露港邊緣的市就公 公園附近有藍輪碼頭, 根據現行的暫訂五六月接納了一項檢討建 ̇五千名兒童參加彤,如 統運
一居屋發飂。除了鄰近上一間中學。 口數目。 州二層,爲英觀及實用固,另一個位於市中心可供公眾使用,藍圖範五十萬,或二百二十至 起見,拓展處萊器批拉 和鄰近住宅區之間,此國內亦有單市懲系統運 四百頭肉豬或奶緒,或 其餘各幅用地上住宅樓三面區內建兹有兩盤大型業的商滿下面將設一個牛才具中消資格,補 留作私人機構參與計劃當話機樓、兩間小學及中口期才達到預期人就。 「展密度第一類住宅用地有文館、運塲貓、建。而目前沙田區籍人 述酒店媿是一幅外,其筵用地方面,藍市中心上绣地盤建正求申請人需符合下列。但 首屆藝術節記者會,左二起:猥譯會 , 谷州即荃灣第七區)于富等。 《港)元朗區撲出較爲靈活的條件。
的外型設計選强櫚使向地區遊憩用地,一個用主要交通交匯處,市區東龍區遠 荃灣城門谷改善文康市政設施 十種,或養母豬十五至
韩语, 新界政務署驳示可以考序 政務署建業應修改 。其中有兩個地基將至地區社區中心,其他有已有十六萬,預計到, 自乃是便具申請資格, 要积舞時間進行投票程高的,期蘭新界人口份,十八B(星期四 新界政務署原本擬于事前以杏面亚知摄名 元。
主席何冬街、大會主席邓永津、政務專員
游泳池塔斯·八八十八九年有 未來數年來將會有六項(IT)
[焉如參加正副主席 爱上超 |展開,總預錝翹費約一完,包括有益觀眾若合,第三十五區工塲區內 文康市政建設工程計劃,預算費用二千五百萬 第六區體育館(C型) 〔特訊2荃灣城門 四千人類米沿台,更衣 街街市改善工程,馬灣 工程有遷運動場蓋泳池體育館
̇別議員、執行委貧及正守 主池,習泳祖,訓拺熟食中心、公廳、泣圾
9: : 四 J 歷屆選舉行上午八時卅分至下午五 東灣泳選服務案。
莫二第張六第二日二十月一十年寅丙歷夏
行萬百葵荃
行舉日週本
畢行時小三里公12長全
司單
參迎合
合道運動場舉行,做
- 聯區百萬行j - 將於 十二月十四日(本
之公益金「荃灣
期日),在葵涌和宜 迎各界熱心人士屆時節與招
時早上九時正;由工商
「持剪綵開步儀式。
司何鸿娄及其夫人全 起步時間則由上
·百萬行將於當天
廠戶-社團組織等均已紛紛積極組隊參加, 破紀錄,葵涌及荃灣各區的工商機構、學校及 ::「荃灣獒靑聯區百萬行」主席田北悅透露 由於反應熱烈,相信本週日之步行人數定必打
·公里·市民預計可在三小時內行畢全程。 塘區,再返回和宜合道運動攝。路綫耙具十二 門道,進入城門郊野公園區,經風景獲美的水 記出發後,即可沿和宜合澹經梨木樹邨;上城 午八時至十時,步行人士在和宜合道運耐塲件
謝支持項善舉
,
葵青節 85
葵青與你同歡樂
彩者招待會
進行六項建設
區,預算合用二千萬元地方 遷移場垕遒運動塲至該 水景設施,園燈及休憩,垃圾收集站及車停 程計劃有三項:(一)遊樂場,中國式花園,,鄰舍遊憩用地、公園
· 九九至九○年度工七人足球摄,兒童探奇在第二十一區為產中心 五公頃,有四網球傷, 九二一九三年度 東塲,第三十五區工廠
「費區委員會文件顯示 根據區域市政局荃 池,嬉水池,跳水池等收集站及鄰舍遊遊用地
百米全天候跑道,可容得下財政年度有香草 肘地第二期工程(新) | 塲片輔助田徑設施;四區的其餘工程計劃如下 垃圾收集站及鄰舍遊| ,設施有標準草地足球此外,該區在荃灣 區內熟食中心、公厕、
五習萬元。 ... 程,預算四百五十萬元存决定,低地二1千11點)。 |項區域市政癌署苗粛工程——餘下工程,費用有及文化大樓(中央圖書 :下年度該區還有一有一項:分區遊運用地區遊憩用地-荃灣行政 荃工程,預算費用二千助設施。 期工程,聯仁街鄰舍遊 盤,提供茱務及河流改活動及舞霞室及其他賴|有曹公潭第二階段第二 地盤開拓及開後通道工,實為毛球形 食市场。 程,開拓灬個四公頃地 途的運動場,壁球塔,九———九二年度
在該區的民康市政建設 (三)體育館AC 用地(第二期工程〕元,包括有可供作排球三期工程,第二十湛熟 「度展開的有;分區遊裝盤,預用建築費二千萬期工程,蘇華街公園第 工程進度,下個財政年嘔),位于二〇二號地 有曹公潭第二階段第一 九一九二三年度莚用地,第三十五霉分
九〇|尤蜊年度
直徑
吃蔬
度計
香如:
午五
1987中學會考
試題預習專欄
物理(十二)
明璁出版社
"MILL & DALE PRESS
Revision Exercises
for
Cert. Exam. (1987)
PHYSICS (12).
4. Fewton's Laws of
Hntion
Newton's First Lew of Motion:
A body will remain
in its state of rest or continue with:
uniform speed · straight line unless it is acted upon by JE siternal force,,
Note: When, there is no net
force acting on a body fi.e. the resultant force is zero), the body will continue its state i
of rest or of uniform motion in a straight line. When the
resultant forces is non-zero, then the velocity of the body will be changed (1'e the body will be
Newton's Second Law of Motion:
The rate of change of momentum of a bodys is proportional to the resultant, force on the body. 1.e. F. V-21
For:convenience, we船 choose a unit force. such that kul. Hence
Note: Momentum of a body
is the product of the dess and the velocity of the body
quantity Newton's Third Low-of- Motion:
To every action, there is an equal. but Copposite reaction.
As shown in the figure,
a block bangs from a spring balance supported from the ceiling of an: elevator
cable
¡sprtogi
Junce
(a) If the elevator has an
upward acceleration of
2
balance reads 100N, What is the true weight of the block.
(b) What sort of motion.
vill the elevator per- form if the balance reads 64N? AN
(e) What will the balancé
read if the elevator moves upwards with uniform speed?
(d) What will the balance
read if the elevator noves downwards with uniform speed?
(e) What will the balance
read if the elevator cable breaks ? (Take 610me,
Take the upward direction as positive.
Let Tateusion in the
a-acceleration of the elevator (-acceleration:
ss of the black
The resultant force acting on the block is
(a) When T
LOON..
a. 2.5ms 100-m(10) (2.5)
B(kg)
True weight of the block-80N (Ans.)
-64N
64-80-8(8):
(Ans.
The elevator moves. downwards with acceleration 2ms 2
(c) at the elevator moves
upwards with uniform speed, a0
T = mg - 8ON
(Aus) Hence the:
reading of the balance is SON..
(d) Again, a=0.
80N (Ans)
the reading 58 80N
(e) If the cable, breaks,
the elevator will fall down with acceleration. equal to the gravita- tional accelerationg,
Hence
T-mg:
(*).
TON (Ana.)
the reading
of the spring
balance is ON.
Example 2:
As showa in the figure, the pulleys are smooth and of neligible weights.
8kg
gmonth horizontal surface
Pind (a) the accelerations|- Apply Newton's 2nd Law to
of the blocka
the tension in
the string
connected to the Skg-black
(c) the tension in the string "connected to the
18kg-block..
Solution;
figures Ty and To are the
tensians in the strings. bet a beacceleration of the 18kg-block, beice: the acceleration of the 8kg-block 18 2a. Apply Newton's 2nd Lav to the 8kg-block
16a
Apply Newton's 2nd Law to the 18kg-block-
18g-T
Also,
18 a
18a
(a) Substitute (3) into
(2), we obtain
90-T - 90~(4) Substitute (1) into (4) 90-16a -98.
a= 3.68
(ADS) açcëlération of the
-18kg-block is 3.6ms acceleration of the 8kg-block-2x3.6
7.2ma
(Ans.)
16(36) 57.6N
27
11.52N
(Ans.)
Example 3:
Two blocks of messes 10kg and 5kg are placed in contact on a smooth horizontal surface.h horizontal force:F=15%18: applied to the 10kg-block. Find the forces between the blocks
Let R., Bo be the forces, between the blocks, a be the acceleration of the system.
(Pipal momentum of" B)
: time. iT
P Price per unit
the 5kg-block
(2)
(Initial musentum of B)
3.00
contact
Apply Newton's 3rd Law
(3)(5)-(3)( -4)
10.5
=54N
(Ang.)
From-(1), (2) and (3)
Therefore, the average force on B. 18 54 to the right:
2,001
Note: The average force on.
A and the average
5
(Aus.)
Thus, the forces between the blocks.exe the eanie megnitude (ive. (SN)) They are acting on different hlocks and are opposite în direction).
4.5 Conservation of
linear momentum
"If there is no external force acting on a system the total momentum of the system Is a constant,
Note: Moments are vectors;
Son applying this
principle, they are taken as positive are in a certain direction, and as neetive as they are opposite to this direction
Example 1;
Two trolleys a and B collide together directly. their velocities before and after collision being shown in the figures. (a) Find the velocity of A
after the collision. (b) If the trolleys remain
in contact for 0.58, find the average force (1) on A, and (B) ou Bduring the collision,
Solution: Take the direcw
tion to the
right as positive.
(a) Let y be the velocity
of A after collision. Initial momentum of the system
... (1) (24)4(3)(−4).
12kgas
-1
Final momentum of the system.
=
(1)(v)+(3)(5)
(15) kgma
By conservation of
linear momentum
12= 4+15
Therefore, the
(Aus.)
velocity of ́A is
force on B. are
"uced on and reaction?
Therefore
erefore, thay are
aame:magiitude und
opposite in
direction.
"Individual
supply curve
of firA
500 1000 1500 2000 Quantity supplied
The Individual .... supply curve; clearly', shove that the Ligher the price of a
** (+− ) commodity, the greater
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Revision Exercises
for Cert. Exam. (1987)
ECONOMICS (13)
The definition of supplys
Supply refers to the total quantity of a commodity that will be made available to the market at a given price, over a given period of time
The supply of a commodity, depends mainly upon the business decision mede by the entrepreneur „žu the industry..
II.Supply Curve.
There is a tendency for a seller to put a greater quantity of goods and services into the market at a higher price than at
a lover price.
The following dingtom shows the schedule when a firm A supply greater quantity of the product as price becomes higher.
Price Per
Unit of a
Commodity
·Quantity: Supplied
Per Month
$3.00
2,000
2.90
1,800
2.80
1,600
2.70
1,400
2.60
1,200
3ms to the left.
2.50
1,000
F=1.54]
10kg)
15%
10k
(b)(i) The average force
2.40
on A
2.30
700
2.20
600
Figure (a)
Figure (b).
-rate of change of
momentum of a
2,10
500
2.00
400
(Final morentum of a)S
Figure (e)
Take the direction to the right as positive. R1s Ro
(Initial comentum of 3)
contact
_ (1)(-3)-(1) (24)
19-54N.
0.5
(Ans.)
the direction of the The negative sign indicates
force on A is to the left, are the pair of action and Therefore, the average reaction.
force on A is 54N to the left.
Apply Newton's 2nd Law to the 10kg-block
15-R
10a
(ii) The average force
on B
Putting the abovea table intu a diagrani; a upward sloping individual supply curve can be drawn. This curve represente the state of supply of Firm A at a particular
time. The vertical axis refers to the price and the. horizontal axis refers to the quantity supplied of that commodity.
quantity would be supplied by the firm.
The aggregation of the supply curve of all firms in the whole industry is called market supply curve the commodity, as shown in the figure helow. Its shape is similar to the shape of individual supply curve.
P Price per uni
Market supply
curve
Quantity supplied for
a commodity.
The Law of supply states that the higher the price of a
commodity, the greater will be the quantity: supplied in the market. The law is based on the
scarcity problem in the economy, implying that the producers are utilizing the limited resources to produce. in order to satisfy people wants: The
deefadooogam entrepreneur dependa on the cost and. benefit analysis the production process.
III. Change in supply
A change in quantity supplied meana: that the change of the quantity in a firm or in the market in respect of a range of price change &.
A change in supply means that a greater er smaller amount of goods and services is supplied in a firm or in a market without·· any changea in the price of the product,
A change in supply involve a shift in the supply curve.." bg! If the curve moves
towards the left (from ss to SS)
then there is an increase in supply.
as shown in Fig.
for a commodity Fig.a
If the curve noven backwards from 55 to SS, it is said that there is a decrease in supply, as showni in Fig. B- Price
quantity supplied for a commodity
IV.Factors leading to
change in supply
The chief, factors, arPeet真如路, supply are the price of the commodityaid the condition of supply. They can be summerized as follows: The cost of production, Vw The whole businesa
depends so muck on the control and calculation of the production cost- in the firm. The rise of the wages, rent interest and other costs of production will generally reduce the supply of a commodity coming on to the market. A full in his costs will have the opposite effect. The technique of pruïluction'.
The development it new method of produc- tion and the invention: of new technology can help to promote the production efficiency. The introduction of new machinery may make the extension of
output possible and hence increase in supply. Effects of taxation
Taxation of. comiudities can directly influence tlie price of the commodity. It will certainly raise the cust of production. and lead to rise in price. Therefore, the imposition of Apxation wilKENS generally result in the decrease of sinvly.
Natural influences Land- political influence a
Polițical disturbance way: discrupt either the actual output itse, £ or the distribution. system. For example, war, strikes, fire and civil unrest hinder: the normal netivítřes of production.