1968-04-17 — Page 15

1:18 AFK 1968

CITY HALL

AEXTON

廿十二月三年申戊夏

MAN KIU YAT PO

二期鼻

1958

日七十月四年八六九一层公竿七十五罩是都中

46. Solution (C)

罗僑

南試題到習售酒

(1)

The circuit is connected as following:

英文科

(廿五)

何玉柱

Kaina

XXVI

Exercise XXI

**%$# >;=6# $%$#$%$# BEG# KLE# $4%$#$%$# $%$# #v£# 548##$!

Correct the following sentences:

0968

英文中學會試題預習専欄

物理科

(廿五)

·陸永熾、

PHYSICS (25)

45. Solution

ww Rheostat

2.

1. When be was student, he is never come st The boys they are often dirty than girls.

3.

This book is more better thab that

Bulb

Adjust the rheostata to ensure a current

(4) Lengte law of Electromamatic Induction'

The direction of the induced current le always such as to copose the change producing 12.

(b)

$

Thrusting into

the solenoid

N

of 0.5 ampere flowing through the bulb to maintain its proper brightness.

(11) The bulb with a water proof connectio 10 inversed into water. Current of 0.5 amp.

is allowed to pay in the current for a certain time and the tempurature recorded. The circuis la then disconnected and the amount of water thus warmed in masured by the masuring cylinder.

The result of the experiment is listed); Mass of water

Temperature of water (change) - é Mechanical equivalent of heat - J Current in the circuit Specific heat of water

Power of bulb

joule/cal.

aup.

--

- P

watia

p

་

You really want to ***

I am interested in be cas pass or got.

English is difficulty, but in LAS other hand, it is very useful,

He is a good people though ne SODESLBes make

trouble.

We would have help them if they told us their trouble. but they just did dat want to let us to know.

He work very hard to earn als 2 life.

My foot is very pain; I fell over yesterday and twisted it. -

11.

12.

13.

His face is like a monkey.

This book in very familiar vita moj His mistake is similar as me

14. That type of flower is sa sane as CRAS. 15. Surprisine. the tourists attered a cry of

Joyful.

Beet

5.

te

6.

7.

+009

8.

9.

10.

6

(Induced current maken neer end

a North pole)

No current is indta càd as the magnet is at, rest.

Rapid withdrawal

3

(a)

(1)

(15)

(Induced current makes the nes

end a South pola)

12 volt, 24 watt bulb should be

to a and b,

irections;

(iii) It should be connected na

)b)

(1)

Time

current

Heat

ined by wa

Heat fort by bulb

Assuming that there is no noat los

●urrounding,

The power of the culo is, therefore,

PL - LOJ

P = 6J/t

8 volts

www

MOTOR

LOAD

joules joules

to the

ID this and like

the following issues, It should” to point out some phrasal verbs which are) quite commonly used.

1. Come across:

2.

meet accidentally; happen to

I came across my uncle who was supposed to be

in Europe.

"

came by: obtaini get into possession How did you come by this book? I have looked

everywhere and still cannot find it.

3. oome to: a. have or get (a conclusion)

revivelafter fainting)

4.

2. The meeting went on for hours, still they'

hadn't come to anything.

h. As everyone was discussing how to help to onconscious man, he came to himself, come into sight; be visible

soon as a patch of grey came into sight, they all cheered mɛ thay knew that meant. land.

backton one's word: not keep onet promiss car trust him; he never goes back on his/ words. 6 go by: pass

Be likes to watch the girls go by in the

streat.

7. go in for: take(or have), as one'☎"object"

nobby, etc.

all soon go ia for (wait for}

big granination,

After collecting stamps for a while, the bay

now bas gone In for tennia,

"go off: explode

When very small, I was given by my brother a

fire-cracker, just when I held it In my hand, it went off I was so frightened that I deve play fire-crackers any more.

MBRIE

(11) Adjust the rheostats to ensure that the. reading in the voltmeter is á volts.

The time the load is raised for 1 ü taken, t sec, The voltmeter and ammeter Goodings, measure the nower duplied to the us (IV) waste.

The energ

(IVt) joules.

Besides RÖDER

astor

a stop

watch is essential for the time measurement.

QUESTIONS FOR NEXT WEEK

47. (*) A cylinder of soft iron is suspended from

a spring balance so that its lower end is justé inside the top of a coil of wire o t many turns. Draw a diagram showing the magnetie field Lines to describe the nation when there is a current in the coil.

(b) Desaribe how you might use this apparatus så. an amanat:@x".

(a) Would the apparatus continue to work effectively if the direction of electron motion in the coil was regularly alternating ? (d) A galvanometer has a full moale deflection. of 0,1 så and a resistance of 100 ohms. Show (1) how the mater is converted as a voltmeter to measure potential differences up to 10 volts. and (11) now it is used to measure currents ap to. I.0 ampere?

48. (*) What is meant by the resistivity or

#necific resistance of a material 7

(b) A céll of e,mif, lel volt and internal resistance 1 ohm is connected to a wire of > ohne resistance- -- What is the aurrent in the aircuit? If the wire is 2 metres in length and 0,4 mm. in diameter, what in the remiasiv1LY

fine materiai?

(6) //What are the factors: that detemines the amount of heat produced in a pookator carrying

ourrent ↑

An electric neuting

of 95 onme when connected

volts. Two of the win thereby, reducing the

go over: review; study carefully

Let's go over history first and then see if we

can answer the questions.

10.

go out; be extinguished

My children refuse to go to bed until all

lights go out.

11.

go up: a. enter a university i D. go to town(esp. big ones); c. rise

a.Many of us would like but are unalbe to go.

up to colleges.

b. Finally the runour went up to Paris,

c. The price of everything is going up rapi0-

ly.

go through: examine carefully

12.

Please go through the accounts. I'm not sur

whether I have made any mistake.

13.

go with: match

This hand-bag goes with this pair of shoes per

fectly.

14.

go without mot nävei suffer the lack of I could not sur bread anywhere so I g

guess have to go without it,

15. look aften: take care of

When I go away, my sister looks after my babitɛ 16. look down upon(pn):"despise; not respect

If you do not study hard, peɔple will look dow

upon you.

17.

look into: investigate

Before the lawyer tok up the case, ne, first

looked into it to see if his client had cold, hin the truth.

18. Look out! De careful waten

Look out there's a cliff. 19. look round: examine or consider

before taking action

I don't want to buy anything yet.

looking round to see if I need say

20. look up: find by turning over pages

21.

22.

23.

If you find any, new words in the book, you

look them up in a dictionary,

look forward to: anticipated expect joy and hope.

We all look forward to a happy cuamera

(Note: to is a preposition; it ́s vd

than 'e noun. Te used after it, thes be a gerund.

*.g.

We look forward to having good aults in the C. S

E)

look up to (the opposite of "look down! look on: be a spectator

I did not take partibil daly locked an

terest..

anuen-looker.

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