1971-04-04 — Page 11

BRARY

- 1971

育教僑華頁三第張三第 甘九初月三年亥辛圈夏 WAH KIU TAT H

報日橋

育教

育 僑 僑華

1971 英文中學會考試題預習專欄

*THEM IN SUNLIGHT

PRESS

1971 英文中學會考試題預習專欄對

地理科

(廿三)

新光出版社主編 SUNLIGHT

物理科

PRESS

(# =)

PHYSICS

LESSON TWENTY THREE

CONVENTIONAL SECTION (Continued)

ANSWERS TO REVISION TEST A

-3-71

{*} [he Laws of Refraction and me réiractive index

Relation between them ja an

sin

(b) ang

GEOGRAPHY

LESSON TWENTY TWO

REGIONAL GEOGRAPHY

PART B CONVENTIONAL SECTION

ANSWERS TO EXERCISE 22 (China),

The Natural Resources and Industrial Development of China

China is endowed with large mineral resources OM MOST of these occur in the interio where transportation is difficum anu, mineral exploitation expensive. Coat and iron ore are present in the north white in the south non-ferrous metais such as woliram, icad- copper tin antimony are found However these mineral reservs has never been fully surveyed nor exploited Therefore, heavy industry. occupied only 29% of the national economy in early 1949: Buy Com late 1949 the government stresses on the redistribution of industrides centres, from the cous to the uiterios nu on the development or heavy industries prior light industries Premiery sering up or industries is found in the Hwango and Yangiza Dusk where" mənanı

radius of inner circle

radius of 'puter cicle

-31 @ not possiblý tó: gol: tha

Kogu vefaction amon angle of incidence de préster chan critical angel. The ray will be internally reflected

(c) Referring to the diagram, 0, 1 and I are

of object, intermediate and final images.

objective

By applying lens equation on eyepiece, positive) r is the object and is real: Laage and is virtual

the positrona

ung nasa warge population: ano at the same time forced labouris ensured by the government cheap labour is always available in both agriculture and industry Cooperatives and com munes. are organised in order to put maximum abów mineral and production, industries Besides man power: Coal 15 380 an im portant power resource Coat is the most importani, minerat founa in China and over 90% of its produced in North China. Our of the 90%, 70% is found in Shans and Shers The coal reserve in Shansi is 32 times more than that of Manchuria, which is the greatest pro ducing region of China Shensi is second to Shansi and Szechwan Honan and Hopes are important coal producing provinces Besides coal petroleum is also found m China Being double the power of coal petroleum is the best. feul Out in China can be obtained from oil of from of shale. Crude out, is found in northwest China and Kansu, Shens and Sinktang are, the most important producing provinces Starting from the Jade Gate of Kansu at western Chunun Mountain the une of oil runs to Urumchu along the Host Corridore the Farm Basin and Tsaidam Basin Oil shate is found in Fushun and Moumin Besides the above power resources. China as a very high-potentwuly hydro-electricity, for most of the avers, run -narrow gorges and the water volume fluctuation is high Among all over systēma" the Yanetze Kiang is most important. especially at the three gorges

日期星日四月四年一七九一瑟公年十六國民塞中

Give a sketch map of Japan indicating the distribution chief crops.

State briefly the structure of Japanese Industry..

With the aid of skeren map, give a brief discription on

the Location of Industries in Janan

Shenven

30-1

ing eng qqua190 once on objectiv

(20

+250-15

380

120 260

(real)

52057

780

80

317

463

463 cm

M2 x H2

The total sangnification

zagnification produced by objective agnification produced by eyepiece

463.

12 708-4

ame1078) M = (~67) (7)

20338-3

won reserve o nina is rather smati de compared wilT)" war reserve. Iron ore resource is scattered in small deposits of low grade bituminous About half of the output p found i Magenunan. munes and the other half is found in Yangtze, valley Fin is second in importance to iron and China produces 7% of the world's fin output It is found in Kochiu of Yunnan and differem pan of Kwangs. It is important in electrical engineering and in making different alloys. Besides Iron and tin, China has a big reserve of wolfram-which is found at Nanung China also supplies half of the world's need in Antimony which is found at Sinhua of Wunan Other minerals such as lead silver gold zinc and

Opper are scattering in south China

Cotton is found in the North. vñiña, ridin especially in the w valley Silk is found in Tai Lake area Chengtu and deitas of the Peart River Other vegetable raw material resources such as tobacco anu ugar are found in similar locality.

The Communists beneve that neavy industry is the rool of national development, se at present most of the government budger goes to industry (50%) while 15% is to communication and 10%,is for agriculture The main purpose is to produce as much machumenes and tools before producing any consummer's product Agricultural development is only 10. pronde food for the people and raw materials for nausines Most arvate ndustries beconte state-own

-North ChinLJ

Arch

Oraining ce

King brain

Southtenst Drainage schŠA

318%

[a] When un current flows in Ga

V

VAB = VAD

Similarly Vac Boc

(2)

Combining (1) and (2)

.R,

R

(b) The unknown resistance and standard resistance R are

connected in the gaps of the bridge (as shown). The tapping key is used to slide along the wire until no deflection is obtained in G. By Wheatstone bridge Principle

100% -

RLs obtained since is given anu can be measured. In order to obtain accurate result. (1) R and R should be interchanged in position and the process repeated. (1) A shunt is connected to G, first with the shunt on, a rough balance point is obtained, then without using the shunt, a aore exact reading is obtained.

(c) cisövrical energy supplied Heat gained by water and

calorimeter heat losses.

MadManenuria is the most important industrai centre for heavy industry due to its rich mineral resources and a good ner work, of rask way Machinery, automobile, oil refinery cement lumbering, iron and steel making are found there Industrial centres are Fushun Plardın, Fushun, and Shengyang Along the oil producing bell chemical industries are found with thermal plants and cracking plants at Yumen and Urumchu in Northwest Chuna Heavy industry is also important

at the Wuhan region where coal and tron are found.

Chengehau also

Light mdustries are found in big cities entsien nas its industries ranging from textile to tobacco making while Saan and Chengchau are good cation textile centres contains flour mills and tobacco factones. Shanghai is important in cotton, and silk industries and sugar refineries and tobacco industries are also important Industries in Szechwan are various in southeast China, handicraft and textile indistres are famous

Cotto

Tes

ejamate, and physical environment

of agrigulture of

EXERCISE 24 (Japan)

State the influence

(40) 102)

30 x 102

12 mins

(a) Transverse Waves, Frequency, wavelength and

Amplitude

(b) Refering to the diagramm

100

Since 25% of the energy supplied is was

Heat gained by water and calorimeter

75 1001

electrica

energy)

Heat gained by water (100) (40) kilo-cals, Reat gained by calorimeter (20) (0.1) (40) ki electrical energy3 kilojoules.

where t time required in (sec);

CIDO)(40) +/1 2010: [40}

*

Since

and

where

= end correction.

33000

= 60

MI

550

STIL

41.3 cm

and fa

15-

3.5

(c), Since frequency is inversely proportional to its length and directly proportional to the square root of its tension,

second prestane of

(for a string)

223T A

fength of string" must be reduced by 50%,