育款国部頁一第張四第日二廿月一十年子壬盛夏 WAH KIU YAT PO
|港大取錄新生
明年採新辦法
- 第一年不分系,第1年始分系 何“假。
消入大學淞,在中薇費 及格之學生,而被取錄
: 但獲得大灣大學
:.新生要斗材下出
年開始有所改變,入大學第二年開始分析,融要大湖篙及格覆 【學對新生很甜,由下學無須选媱任何學米,寬料攻者,無別需要 (甄明诚)香褚大一诒大冤一年級攻覆者,「項:(一凡瑞创入交
REFERENCE LIBRARY
27-DEC1972
橋
HALL三期星
日七廿月二十年二七九一公年一十六國民華中
教
育
覽展業就年青屆一第
幕開日九廿定
行銀煢匯 辦舉組導指業就年青處工勞 帮在旨覽展次此式儀幕開持主弼沈理經總 業職擇選生學級年五學中之業就而出將行助
出展料資之業行同不種十二有
職第二。九時上時二,舒所限職工,前數職中旨職华;蔡然堂天
尖下午二時半在大衛
11月十九日由下午
圍:教育司拼负實人忙於處理各校學生家來之作品。 年將工作氣圍擴大,以偉前衛中学改坐进交前均可接受到一些良精花島 「橫版業 诬 聽学人數達一萬当千二百九十五名。自然組正準備務 [述,一九七一七二學年內,祖何義十二間中革作茧百五十次有 于此犸工作一段落後,誠袓便開始宮中學五年級學生編排有翼造繁之攝 及唯友界生就業。該組編製有環系短篇,已出版了拼三辉,在一九七一年 勞工處於一九六八年成立門青年就業指導組』,卽頂竾推瞹輔導年
對更多有關朶母之資料 開心人士,若干志麒麟棒冰時有满行有沓年就業導及接業之工作 *形成『梁餓北梁」感,民易陷於苦因後進,這個開於近年來已引起 少完全準術,向社會謀水工作,往往發出「漸凍人」與「人求事」的脫節 續卻造外,其触大部份都要批評此會找以職業,然而此等青年由於事前戲 : 所週知,碧貼毎年約有三、四区小學畢業學生,除少能有機會 務性工作及狹爾性工作等,而毎祖內所謖出內容又包括數十扰不同工作, 將分有五組,而她有一個統稱,含如辦公案工作,藝術及派表性工作,實 括遇有次識安米,淵胗,升職機會,工作條件等,會場攤位
節
的
缺
同工會。會上
在作,羅料作氮,約五上上日 實位包渚行從有時午七由 圖
引 腕 獲作起
至
加上铁生在中昂階段之, 生在入華感中晚裝與者 瓦校方之米。 | 大集感文科生 奥祺 成龍,與談生入學赞育 科津干著通要在人事試,上述科日中,起碼就宣明會柔貼并班述杯類主変以进咯异,惠
立可爽推射,謝氏昨,作莒料予点的彩色米 而且包括一樣
文理醫院十周年校務會說話劇「坐」之一
助轉
分來
·丽學,必須有良好中,
· 中大校外部錄有 可供研習明誦者借鏡
(日)發售,(二)體(國勝食會計學 文理書院十周年校慶 崇高,司馬師環畫,一上護者:次瓦川,約四十,韩磊硏空有關理科最新要求,並美理料破师诚
·大案·常、上什麽水準 冰希望据
技惠由佩
並由癌致英文鴦图够使來賓,家長及校友一
者:地理、經濟、公
之犬
外除
及雜風等科 一生,可握科及 逃大选拔入學試及花梨 見港大利所宣佈,可能
賽比型造體立
加參躍踴生學
件餘百二品作校六卅
燦明:
爵士操情这
CHOSERHEDULE (B).
份:
土研習語文上所爾。中
DATENRE 2-(U) (11)RA - (III
戗串的校魔活動。作鳥,及考登獨幕劇等。選一九六九年開始,是 按美日一提出學生製作
求富弱學生晔外活動周尔基泰的應都得力1
司法
「衛華納者,第一年級 英分老,而非如文科等
加比賽作品之名文
限公司贊助,將於本月二 ∵:「立體造型」比美
A.「詩文選讀」(江花月夜, 滿,樂尉義、蘇文摺及「六)雨安阙。八七)五一綜合匯演,亦分則於
我們的心
「第11年始分料。」
坪洲惠平學校
·慶祝鹡熱
宮賦、七】曹阿辦戰 十一⻌明湖居臚乎。 桃淵行:乙 文 點燃共一千二百五十元現金步,及柯達「立刻自 面“婚獎之作品將於1月開展览。得獎者將獲 心里至患,六心阿房 長恨歌,阿房客。歌(二)將湖酒, 坐,七古從軍行,一賦」一語帶 江花月夜, H酸物利用,共科別 (水開冰、五(八清平钢(九)、詩歌部)長
約五十度,因 湧秀,及培正中摹射誦坐等三千多人,情况整 入行。榮发者的排除在內宇共招梅 劉狀文來賓:家長,校友及事」
1973英文中學會考試題預習專
化學科
Chemistry (10)
Solution for last week
2KC10
mol.wt.
245.gm
CF
2KC1 + 30p.m.
mol. vol.
3 x 22.4 1 a N.T.P. = 67.2
245 gm. of potassium chlorate. vield 67.2 1 at N.T.P. 12.25 gm. of potassium chlorate yield:1225.8.67..
3.36.
sulphur
Relative
Relative No.
=1.32 4.2-2.6
Divided by
32
of atoms
the smallest
c. The empirical formula is C The molecular formula is (CS2 ),
and its mol. wt, is therefore (1264) 76. However, its
molecular weight *density = 2 x 38
therefore 76x = 76
2 x Vapour
The molecular formula is CS.
3. Ain and oxygen
* The atmosphere is a mixture of gases whose approximate composit- ion is given in the following:
Average
: By weight
percentage
By volum
of
Nitrogen'
oxygen
75.51 15
78.03 20.99:
Inert gas
Carbon
0.04
dioxide
The inert gases are argon, beon, helium, xenon, knypton, They are called inert because they don't combine with any elements and form no chemical compounds. Water vapour is always found to be present in air, and its pro- portion varies a good time to time and from place to place, but they fluctuation is between 1 to 5%/ by weight.
Air is a mixture, not a compound 1) Fron the point of composition. a. Sall variations in the composi ition of the air occur in differm ent places and at different times. Though these variations are always slight, they are sufficient to
show that air cannot be a compound since the composition of a comp- ound is absolutely invariable. / b. Tap we contains dissolved air. Thi can be shown by heating
lash filted with
tap water
delivery tube leading to a gas
rted
On hea collected in
ater. The whole
with water. ven off are
jar. Any sig eam is absorbed by the water in the trough. The omposition of the gases so collected les nitrogen 639.9%, oxygen 33.2% and carbon dioxide 2.9% :volume.
Thus the composition of air\ dissolved in
iter and that from the atmosphere are quite different 2) Prom the point of properties) c. The propert
average property of nitrogen and oxygen and• not now. The properties are not completely different from those of oxygen and nitrogen as/ they would be if air was a com/? pound. The melting and boiling points and the density or air/ (are not fixed and haa definite
values.`
3) From the point of heat change d. If all the components of air mixed in the correct proportione air is formed, but without any explosion or heat change.
4) From the way by which the com- "ponent parts are separated
e. The component parts of air cari be separated by the fractional distillation of liquid air, since this is a mixture of liquid nitro- gen and liquid oxygen with differ- ent boiling-pointsi
The heating and/or ourning of elements in the air:
phosphorus'
A piece of dry yellow phosphoru. is placed in an evaporating dish floating on water in a preumatic trough. An open ball-jar is placed over the basin as shown (Fig. 4-1 and a hot glass rod is pushed through the top to touch and imi the phosphorus.
yellow
Phayphorus
The phosphorus burns for a short while, emitting clouds of A. white smoke which dissolve in the water. When the apparatus has.p cooled down it is noted that.the. water level has riser to a level. approximately one-fifth of the t way up the ball jar.
It would appear that a portion," but not all of the air; is used: up during burning.
Carbon
carbon burns in air if heated in aufficient supply of air, forming carbon dioxide.
If the supply of air is limited cardon monoxide will be formed.
20+0
200)
Sul
Sulphur bums with a blue flame: in air, forming sulphur dioxide,
Sodium
Sodium burns with a yellow flame to form sodium:
peroxide
2Na +
Magnesium
Magnesium when heated, burns readily with a dazzling flame, forming white magnesium oxide
2 Mg + 02
>2Mgo
Zinc 4.
Zinc ie ignited if it is heated strongly in a blow-pipe" flame. It burns with a bluish flame forming Zinc oxide:
Copper
2zuo
Heated: copper becomes black on
the surface, due copper oxide
formation of
2Cu +0g
2010
Tron
Iron dowe not burn, bỤT IG DOA comes coated on the surface with a bluish-black oxide of iron, tri ferric tetrode
Lead
3F4 20
2
Fe3O4
After heated, lead melts and slowly becomes coated with yellow lead monoxide
2Pb+02
2pb0
Tin is not affected by air at ordinary temperature, but burns to atammic oxide, at about 1,500°d
Suo
1913英文中學會考試題預習專欄
物理科 (十)
·The rim.deforms ds shom in fig. 3.4.4. Despite the increase in length of the spokes, the strip. bend inwards, which compensate both for the outward expansion of the spokes and the reduced elasticity of the balance spri
893.44
(b) A short stout bimetallic strip.can be used as a safety de−: vice in gas-fired water heaters:
(c) Fire alarms can be operated by bimetallic stripsy which. on being heated, close electrical uicuits. 3.4.2. The force of contraction when hot metal:cools is also
utilized in riveting together the steel plates and girders used in constructional work.
3.5. Defects of expansion or solidi A very familiar example is the
buckling of the railway tracks in summer, To avoid this, the rail joints are slotted by bolt nol
as shoen in fig.3.5.1. So that, fr e movement at the joints is established. Another defect due
to expansion of solids is the a expansion of bridges and the roofs of buildings made of steel girders A common method to overcome the
difficulty is to have one end of the structure fixed while the other rests on rollers.
Rail Joints (Fig.3.5.1)
Exercise
1. At what temperature will the reading of a Fahrenheit thermome er be exactly double that of a Centigrade thermometer?
2. The ice and steam polite on an ungraduated thermometer is found.
to be 20 cm apart. Find the temp- erature in od if the Tength of the st mercury thread is 70 mm, above the ice point.MAS
3. A thermometer is found to in- dicate. -100 at the lower fixed
point and 101°C at the upper fixed. point. Find the thermometer read. ing if the true temperature is 6000 4. A metre scale made of steel is conectly graduated at:1500. Find the length from the 0-to 100-cm scale marks when the temperature is: 30°C.(d for steel ig
1.2 x 10 5/90).
5. A square metal plate, each side
1 m, long at 0°C has hole of radius 0.2
middle of it. At
circular in the temperatura
and what de the radius of the Hole
will the length
is wong,
at this temperature? (d of the meta1 = 0.00001250C)
6. A bimetallic strip of copper and iron 1 m. long at 000 is held horizonatlly with the iron upper- most. When heated from below, the temperature of copper ie:400°c and. that of iron de 30000. Find the difference in Tengths of the: Iron and the copper.
of copper = 0.000017/40 of 120 0.00001270)
的的時彍