1970-03-18 — Page 22

頁二張六第 日一十月二年戌庚夏 WAH KIU YAT PO

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明星三日八十月三年〇七九一堡公年九十五國民莘中·育教僑選

九

A B C D E 5.

by $#

菠僑

橋

中學入學試試題預習專欄

A, has giveLL.

B. will giro -

英文科

智慧出版社主編

(=+)

Whenever he soos

him ten conts.

be C. is giving

D. gate E. giman

SECTION B

10英文中學會考試題預習專欄]

Answers to Previous Exerciser

IT. PA11 in the blanks with the

given in brackets.

tense of the verta.

SECTION

英文書院主編

SECTION

BIIY E

物理科

(+)

By

PHYSICS (20)

1.B 2.A 3.D 4.8. 5.A 6.P 7.5 8.0 9.7 10.s

"David, are you going to school now?" ""Yes," Mother, I'll take the bus at

the corner of the road."

"You're late. Hurry up 2 Run quaeKAY!" "AIL right, Mother. Good-bye!

III:

C

B

2 D

Answer and Explanation

(E) is correot

Heat supplied to a substance at its melting-or boiling point will not be accompanied by a rise of fall in temperature.

(A) is falso.

A high temperature does not mean that it conceală, high energy. (3) is false."

Temperature gradient determines the direction of [heat flow

Heat must flow from a body of higher to a body of lower temperature. (C) ie false,

Conduction is one of the three modes of heat transfer. (D) iz false.

Statement (5) is true because heat can arise if energy in some other form is transferred to the system. That is, the temperature of the system may rise if electrical energy is transferred to it.

(C) is correct.

SECTICK (multiple oboles)

Choose the right answer and draw a fira line.

sorosa tõe cożreat boxi

Alivyos

B. lived

ode': Mr. Lai G. bas lived.

D. will live E. is living

Since

2 - 32

ABCDE

for tan years.

summer wo C. go

1. are going, 3. were going

D. bava, gono · 3. had goDS

ABCDE

Australia for a holiday,

Then Siu Lai reached the bus stop, ha (1), (try) to catch the first bus, but he couldn't. Every bus (2)

(be) full of school children and be (3) (begin) to feel uneasy. At last he managed

(uma) his into the third bus that (4) the time he (5) - (enter) the school gate, he (6)

(be) nearly fifteen minutes lata.

"What's wrong with you, this morning, Siu Fai?” said the teacher as be iste the classroom. Wine English text (8)

If you (9) (start) ten minutes ago.

(stop) quietly

(vant)

be catch up with the others, you (10) not, waste) any time.

III. 1413 in the blanks with words such as 1, 79 your, they, ake, he, him, his or who,

Mr. Brown was driving to the Station, On the way be net ir. White (1)

Ir. Brown saksi (2) Ho

GAT. 30 (4)

"How is (5)

Was going there, to get into (3)

both went on and talked.

wife, Ky. Waitu?” he ash

da very well, thank (7)

Onsused Mr. Thite.

at's good. And how are Susan wad, David?"

(98.4 - 32) x

1 – 66.4 -

36.9

(C) in correct.

Warm-blooded animale have a constant body temperature. A alight variation from this, temperature indicates sickness,

(5) is correct.

Temperature gradient determines the direction of heat flow. There is no transfer of heat when the two bodies in contact have no differences in temperature.

(D) is correct.

Even pure water is unsuitable to be used

thermometrie liquid.

6. (1) is correct.

40°c - § (5 – 32)

P72 +32

-104

-40°0 --4

but a ris.

1 deg 0-

deg

280 of 40 deg C - 9 x 40/5 – 72°μ

7. (D) is correct.

Water has the greatest density at 4 deg. C. Further. couling aauses it to expand and rise to the surface of the lake. The surface of water will freeze to ice while the bottom is still 4 C

(E) is

lo [1 + 3 × 8+ 302 82 +x3o3] lo3 [1 + 300)] a2o2 and ∞ 383 can te

-1,[1 + 3x0]

32

(D) is correct.

neglected

The rod expands in length and in thickness too.

10. (C) is correct.

This is the definition of the specific heat of. subatance.

11. (E) is correct..

It is the definition of the water equivalent of the substance.

12. (A) is correct.

The water equivalent of the calorime ter

(mase of the calorimeter z its specific heat) go. of water.

0.2 go. of water

12 gm. of water.

"(6)

A. bold

B. um holding

BCDE

*(8)

Can you see what I C. hald

my han

D. will höld E, had hold

(10)

be

3. shall be

here

A B C D E

sinos xine D'alock.

3.

D

D. have been

E. hul bean

Examples Lucy made hazu

was arousing

A lot of people enjoy

Ha thought

is 111 in bad today."

AM BOTTY, Here is the station.”

cuplete these sentences by applying a reflexive pronoun. in each blank;

a pretty dress.

on Saturday of carndon,

are well. How is

Moda, Brown?”

a very olevas BEA,

ABCDE

3. Be careful not to

into troubla.

4. A car knocked bin down as tɔ

B. aroznā

C. has aroussa

D. in erosNADE

1. Will srosa

13. (C) is correct.

Watt is the unit of power. All the other units

are

(A) is

(B), (C), (D), and (2) are incorrect anewere, (D) is correct.

Since pressure is constant, applying Charlee Law,

➡ 2(273 + 50).

In Centigrade,

the temper

2 x 273 + 100-27; 373

(5) is correct.

Because 15°C 59°F

By Boyles Daw,

PV constant

30

(D) is correct,

In changing from the liquid state to the solid state, it gives out heat. Statement (A) in incorreat.

In changing from une solid state to liquid state, it requires latent heat. Statement (D) is correct.

18. (C) is oorrect.

Water boils at 100 C when the pressure le 76 cm of mereury.

(A) is false.

The amount of calories of heat required in changing one gram of water to ateam depends on the external pressure. (E) is false,

By definition, atatement (C) ia con

19. (3) 18 gorrect.

Heat gained by ice in changing from

Mrs. Krok told her naughty daughter to bet

5. The horné nas burt

10 x 540 x 2

540 z 5 calories

in the race.

Heat loss by water in changing from 80° C to. 0°C

540 80 calories

If all the ice melts, heat required

540 x 80 calories

It is clear that there is not enough heat to melt) all the ice. The temperature of the mixture should, therefore, remain zezo. degree Cantigrade.

CORRECT.

When ice melts, it changes from the solid state to, aliquid state, in which where the molecules: move more freely.

21) (4) 15 0orrect.

Heat required to raise the temperature to 100′′

10x (100 54) - 460 calories

(1000 - 460) calories rassined behind to convert boiling water to steam.

540 calories are sufficient to convert 1: gran or boiling water to steam,

22. (D) is correct,

It is the number of work units required to produce one unit of heat.

23. (C) de correot,

Water boils at a temperature when ita vapour. pressure equals the external pressure.

At a higher elevation, the external atomspunna ý prassure is reduced and so is the boiling point of water. Any combination consists of statement I is incorrect.

Adding heat to water at a more rapid rate. does not affect the boiling temperature at all. any combination including atatement. IV is incorrect. Dissolved salt tends to increase the boiling point of water. J

Heating water in a closed container increases the pressure on it; thus, increasing the temperature at which it will boil The combination of Statements II and IV is correct

24. (D) is correct.

Water may start freezing before zero degree Centigrade is raachad; (A) is fales. åt freezing point, water molecules do not cease their motion (B) is false. Sometimes water will not solidify at 0°c. It exists an water at a temperature balow 0.01 (C) is false. The only correct choice 10: (D).