1965虍文中會試試題預習專欄
LWAH KID TAT
物理科
(廿五:
陳樹邦
物理科假想試題解
用上期所導的有線電橋公式
有
14
FIL
冷 3歐姆 0 40厘米
60厘米! X
·40
答,所測未知電阻之數伛馬夕歐姆
三)(0,法拉矛電解足律
先雞外
七間私立院校招生
入學資格擬定
體、師大、光紙、
可向各校直接報名 及德明七院校爲提高民、國文、英文、數 安。(9) 立珠海、廣大,香江、生物兩米,三組,,有志投考著,可向 (特凯、本港秋·文商科),丙(海岸价格粱合金手查三元 考試科目共六科:公上列上院校來取穿
科:報名費十五, 【丙組潸北起,生物 史、中外地際科 二科;艺紙考中外5 維易業物理,化護 學西科爲共同科目,
入學程,特舉行
會招生,並祖行銷, 孟氏會舉辦科展會
中一入工招員選指名
經 學作生會新
生
[四五年刺中英文中 取餘名額不超過櫨名 【同等學隧報考, 怡,以及鄭思澂谷推進北遜激役的講解由科 一休學一年者,得以 份瞭解去腋勵學生,並提出若于示範, 期醍肄業二年以上,會爲使各校科學教師有 腰品的各積製作事項 學畢萦戏中文高級中 ̧加之學校著爲踴躍,學沈福敎授淼館有關 C、外地公私立線整工作,目前正如願漠秘器協助,到會 該會於本願來做
精於九月十日至十|淮渙博士主持, 高級中學畢業會者及青基金會主辦第二屆 會而運行。上次座談 二百幾行,會各項並由盧朗天主任,馬
《韓餅】孟氏酸 文中學科學敎師座商 由 主席潘光诚博士特
週末續作教師座談
全歡提的
▲期百分之三十。可能無起見,將務秘書榮福
担任翻譯,過程照
| 起至六月二十五日止 南行參加
日期自五月二十五日,楊鐵假大會陰九閎 熱烈云。八成》:
一,報名地點,分在珠出的各英文中學科學 本報昨晚
大、光臣、縱爾及德 談會主席潘光前韓土 收到稿件
【海、廣大、香江、亞 教師座談會,屆時向
「明七院校辦理,考代主持,仍 香港大學
兩天舉行,地點在九品募姿。
維綁杜魯門八十一齦長之孫錢。阿仁香港學生譒忠洪與杜營門 外國學生,於五月六日前在該市之慕爾白旅館,參加紀美國 香港學生與美國前任總赫斯市埔爾斯大學中郧学之
「龍珠源書院,考試分 上那的淡會, 工科) 基北二日的參躞中科管案、生物科答案
·英印髙個:數學
「先生榭丽坐形。
【
(在電拒经電解所析出的物質质量
每所通過的電流(即電量)或正地
電量所析出之不同物質 质量比泡等忙两種物盾的化
O BATEKBE310000 329
(250 × 0.0 x8.93 ) = 0,000)+7
250×0.01x8.93
11.5 x 0.000 329
正交的平面
(二)當電流。
進行時
則在5電
感
磁力線
图中一奌-1 的
1.5 X
觉的钢合設需通電X秒鐘 測
4523.7 1
45d3]
好:龟热需在10分鐘内阶
符號表示碣塩射
方向。
電流方向打算所產生;碰幅方向開之閡
海
方向看如一螺旋旋轉方向,则電流之 才向正在此螺旋進行之方向
4.16
若電流在- 图形;像圈内进行則
20000
感应而產生之行陽的方向,屈
依在手螺旋法則其碰力像如下图所
4.18
× 5 × 10× 6o 4 Į
果肉
Tondo (10)
38.75
M
英中會攷生物科答案(稿) 蔡克己
ENGLISH SCHOOL CERTIFICATE EXAMINATION, 1965
KIULUGY
(SUGGESTED ANSWERS 4)
issinguish na fully as you can hetween the followingr
Plasmage (ectoplasm) and plasmaan
») active and passive immunity,
reflex action and voluntary action.
osmosjs and diffuaion
s)va hormone and an anzyme.
(endoplasm)
a) Plasmogel, is a thin clear outer zone of the cytoplan
* of the Amoeba, li 18 Jelly-like and appears to be of al-
firmer consistency than the rest of the cytoplasm. The plasmagol is within the plasmagel of the cell. It is more fluid and packed with granules of various
b). If we inject toxins or pathogente orgams spa of milder
forme into the blood of human being, the blood will / be induced to produce antitoxins or antibodies. When the same person is later subjected to the invasion of the same pathogenic organisms, it will be immune to the attack, This Le known as active Immunity. If antitoxins are directly injected into the blood and the blood is not called upon to do anything, the immunity gained is passive immunity.
) Reflex action is a rapid, automatic, involuntary
response to a atimulus, by an organ or system of - organs, which does not involve the brain for its initiation; voluntary action is a response involving] the intervention of conscious thought, reasoning anḍ]
the use of the forebrain. The same stimulus does
not always result in the same response.
Osmosis is a process in which solvent or water passes from a dilute solution to a more concentrated soiption! through a semi-permeable membrane; diffusion is a process" in which moleculée of substance pass from 4 region of higher concentration to that of the lower concentration.
A hormone is a quctless gland's secretion whilen cir- culates in the blood and assists in co-ordinating the activities of the body. An enzyme ta a complex organte catalyst of a protein nature which can be produced only by living cells. It alters the rate of of a chemical reaction but without itself undergoing any permanent change at the end of the reaction.
*) What do you understand by the term "sensitivity
(Urritability)" ↑
b) In what waya do plente respond to common external
#timuli?
Describe caFNINĘŁY Ond experiment py which one or a these responses could be demonstrated.
a) Sensitivity is the ability to detect any chanes ini
-the environment and to respond b)Plants respond to common external stimuli mainey zn the form growth movements. If the movementä bear a definite relationship to the directions of the stimuli they are known as tropic' movements or troy If the movements are independent of the directions of the stimuli they are known pastic movements. There are several types of tropic movemente.
If the resnonse is brought about by light it la nove as phototropium. For example plumule grows towards the source of light and radicle grows away, from the Source of light
電鈴樣還有如左 图所示,其主要都何
軟铁心一会具有
鍾;铁片A及
- 弹音片 5.
釘
营通路时,由 電流生碌感应 使两塊軟鉄心
斫鉄上半部分
用一硬纸制成了
當用一侨飲心 達掉入康图西 的,發覺微量電 統計上:推行 有轻微之擺動
但當碰跌停止時,電流計下到枝為零 又當特鉄過連抽出像图时,又察覺, 電流計、推针,恰巧在相仆之方向移動
則
電路上感应而生一電動A(In電動 势而生電流) H電流之方向,怜要抵 抗(即日止)前6;乃变性定律程 楞次定律!
一冬传以不同数目
的線圈,即成 走压器居在初级 Eife I ( primary cal.) 加一交流電動垫 時 由於電流
断对支,以使感
鍾繫 吸
铃現面
PA時,弹鴦PS即与螺旋!
脱 住内使電流中斷電流一中流則软 鉄心 性消失!投领产即得四季處 Te Th 22 ( Closed Circent)! 如此往传之及放,便後方断之鈴聲
支持,即在次级線图(Seendeni
£ 13 19 12 1/2 1/2 18. 2) (secondary cool))
線圈匝數有開、肥
南级绵图;電動孕初级缘图源软
If the response is brough about by gravity 11:18 as geotropian or geotropic movement. For example plumule grows upwards away from gravity and radia). grows downwarde towards gravity
If the response la brought about by water it is known as hydropism. For example roots grow towards water.
If the response is brought about by contact with som solid object it is known as thigmotropian, For example) tondril coils around any support in contact with it.
If the response Le brought about by chemical substances)
it La frown as chemotropism. Forexample pollen tube. penetrate the style and grows towards the micropyle
There are also several types of nastic movements. If the response is brought about by light it as:cnown as photonastic movéments. These movements are frequently referred to as "sleep" movemente, and are characteristi of certain kind of leaveaw.g. Leaves of Oxalds close up at night.
Sometimea nastic movement can be brought about by shock) For example the leaflets at Minosa pudica close up when
** Whakan.
Objecti- To demonstrate phototropism Apparatus:- Some Dat seedlings
and material
Hathadi-
Apot of soil on which the seedlings grow
A box blacked internally and with a window; on and aide.
Oat seedlings were grown in the dark, When they were nearly an inch above soil level the tip of some coleoptile were covered with silver-paper caps as control, while the remaining seedlings were untreated ALL seedlinga were then illuminated from one side in the box as shown in the diagram.
FOREVER SILVER CAP
BAT SEEDLING
·LIGHT.
toault:
Untreated seed- Lings had grown to- wards the light
Covered seedlings, show no reaparise.. Conclusions: -
Shoots of oat -edlinga ars positi vely piiatotropic. Covered neodlinge do not show any respons
because light cannot
Box BLACKENED reach the tips which
ATERNALLY
are the region of perception of stima.