8 MAY 1968
日二十月四年申戊靨夏
WAH KIU YAT PO
日八月五年八六九一层公年七十
英文中學會彦試題預習専欄
1968
C
題颈習等酒
物理科 (廿八)
ECHOT
Mualin
陸永炧•
Vapour
英文科
(廿八):
Physics (28))
Glass
Sheet
i. Solution ▼
18
Gilt Band
A
Thermomster 2
Thermounter 1
(a) It mans that mercury will expand 100,000 ori
9
of its volume when it undergoes a 50,000 temperature rise of one degree centigrecs.
(b) Determination of the latent heat of fusion of
100.
A copper calorikateř ́ena stirrer 18 weighed empty (m), and then about two-third full of veter ) warmed to à temperature about 6 degrass C, above room temperature. The temperature is then recorded..
Cover
Iam
Waru water
The roster
Stirrer
Calorimeter
Quter jacket
Some ether is dripped on the muslin, This evaporates rapidly and condenses some ether vapour in it. That is ether in A and gilt band on A are cooled. To avoid breathing directly on to A a thin sheet of clear glass is put in front of A. Keeping a close watch on the gilt band while eœntinue in dripping ather on muslin, At the first sight of dew being formed on the gilt band, the temperature (tp1) on the thermometer 1 is noted, Allowing the temperature.
to warm up again and thermonster 1 - røding`
) is recorded as soon as the mist evaporate.]
(+92)
The average to D1 D2 is calculated.
2
noom temperature (t) is taken down on thermometer 2.
Calculation
dew point
am temp.,
S.V.P. at dew point 3.V.P. at room temp.
Τε
A thermometer is then placed in water, and some small pieces of ice are carefully dried on a filter-paper before added into water; stirring continuously while adding ice. Sufficiant ice is added to bring the final temperature down to about é degrees C below room temperature. This final steady temperature is noted and the calorimeter and its contents
weighed (13),
Weighings
Calorimeter and starrer -
Gələrimeter » stirrer - vatër – My Blo Calorimeter + stirrer + water + 100 =
Tammerattire.
Warm water «
Mixture A
heat of ice, 1 cal/gm
Specific heat of copper - 0.1_cal/gm/°C
S.V.P.
S.V.P. at
Both
stainable from table)
Relative humidity
Volime of metal at` 5°C Volume of metal at 3500 Density of metal at 5°c • Density of metal at 350 - Lass in weight of it at 5°C Loss in weight of it at 35°C
By Archimedes Principle:
35 335
- 4.3 ga
Loss in weight - (Volume of m62} x (density of 14ädd)
ཝཾ་
Verbal phrases (cont s'aued)
49. make up: a.'compensate #bil pot powder and
paint on the face- d. become friendly agaia
d. complete fe. put together f.liavent 1,000- pose (in order to deceivė)
a. He suffered very much daring"taeˇriot„ViuektƏ *** 19. the governmentânave made jupikia, loss to a
great,extent,”
b. If a girl iajvery much;madeɣup.Iber|real]beaus
ty can hardly be seen.
C.They, had a quarrel but theyṬmade "strup¡soon. d. We cannot buy the book yet because we still
need three dollare to make up the required sumS ́e. I met my friend at a drug store when I wan waiting for the chemist to make,upɩthesare- scription for my son'a cold,
F. In order to run away from school for the af
ternoon, he had to make up an excuse.(The ex Duse was only *¿story, therajwas_noitruth.in It.)
50. make up"for:"compensate for
You are five minutes late: [we must burryštofsake)
up for the lost time.
51. make up one's minds decide)
He has made up his mind to be a doctor: 152.make up to: a. approach “b.atry, to pleaseɣia)
order to win favour
a. Being lost, we maseJupitolchespoliceman and
asked him to help us.
D. The olerk did everything'ne'could'to maks`up to his employer so that he might be promoted/ to a higher position,)
53.* carry on: continue
When. his father died,`we`CHTTLED`OOTRESTDALELNASSA 54.
carry out: execute; put into practicej Re.carried out the plan successfully.
He carried out my suggestions at once, T
55. take after:¡resemble
The boy takes after hisflatberg
of the old block.(
56.4 take back: return.
Kauno cIP).
took back the boqka-cotunS VE FOCALT's]
57. - take down; write down; transcribe f
All his speeches were taken down in shorthand 158.
taisellega,preceive #b.¡deceivatingpassive)
voice)
a. The old -indy oversthere takesĮLO'DORPGers: b.`l was taken in byļais, mandar a] and, gove ̧kin,
whatever I had.
take off: a. start ́s flight (bi renovelclock##) . deduct (from a price)
The piece took offitemininozëetister#caanfona, Scheduled time,
Take off your cost iffyga?{en)Faure
Can you take off,10 dollar»?miklą: « -%oofeni pansive.fo7,00,
(t2 = 0)°C
HONGKONG
Hass of veru vater
Hass
ure drop of warm water, calorimeter
ty) a
and stirrer - (ty
rise of the melted ice. given up by water » (m) - my)(tj - ta) cal. given up by calorinster and stirrer
* my x 0.2 x (ty - ty) cal,
Heat received by the melted ion
Total beat
beat loss to surrounding,
Total boat. received
0.1my)(*1
(mz - my)
cal.
(#2 – 0.981) (tj = $5)-
12
(a) Maam of Son introfuced. * 219.3 – 150 53
- 16.3 go Let x be the water equivalent of the
calorimeter & water in cooling from 25°C to 1500
by Los
to 15%
Heat lost by
(16.3 x 80)
(16.3 x 15)
(xx 10)+ (150 x 10) 16.3 x 95 - 10x - 1500
*** = 4.85).
ter equivalent of the calorimeter is
of water.
475
• (30 x 0.00006)]
4.75
* 1.00.8
Since density is inversely proportional to the volume of a given ma20:
Section C
= 1 30
coaf, of expn. of sol
4.75
ruined, because he had Calcers
tako svars succeed to
(001. tzkredka will you take oveVITIS - QEIVILISERV
Exercise XXIII;
j
put the proper verbal phrases_in the blanks/using-the-coro | feet forms of verbet
Phrases with MAKES -
1 Ispace to him, I
3.
Be
It's not easy to express.
sence yesterday. Kave. You stay?
the deer.
shat a writer mats to)"
a wonderful, story to explain bás ábe
your mind whether to go oṛ
We Look down on him because seo. Taank he has not
plished anything; his present position, is only the peo)
– suit of his
"BLIC LIBA
00041
6. (a) (i) state rour caracteristics of the image
formed by plane mirror. (1f) Define the principal focus of a conosve
mirror
(b) You are given an optical pin with stand, and a rizler. Describs and explain how you, dan de termine the fool length of a concave mirror. (c) Light is incident on the face AB of a 609 glass prism ABC, totally reflected at the face BC, and passes Ou
the face AG. What is the largest pos value of the angle of emerkenne?
15)
(Take for
(d) Two mirr
of radius Coaxially faces facin”
image for then at the BCEW
nësve, the other convex, sách
20 cm., are placed
with their polished sur
and an object is placed Find the position of the lection first at the DONYEK.
Phrases with FUTE
1. How can you manag
2. The man begged me to
J.
his. superiorsa
that noise all day long?.
his for the night,
but as I was alone then, I was afraid to take in a total strangèr...
your shoes"VILLE &
the damp fire, then we can leave this plans together. 4. This is a good description of the scene, but if you
a few more picturesque adjectivam.
it will be perfect.
5. The meeting was
will ever take place.
C. With GET:
sgain. I I doubt if it
L. The doctor said there was little hope far bin te
pdâsease this this time.. 2. Be are you pu
3. The child tried very hard to
1ân but did not succeed.
the biscuit.“
4. I
at the bus-stop an iront os the departe, ment store as usual when I went home last night. 5. Be
college by working whenever no tad washing dishes, cleaning cars for the rich and so fort D. Phrases with DO# .
1. This is a bad law and should be
2. I'll have my house c
this year.
3. If the prioes keep going up, we®21 hàve to
the few remaining luxuries.
Why should we spend time on that? That has nothing
E the question we are discussing.
Phrases with TAKE: -"
1. He's an insolent man; 'ne doesn't even care to
his hat when he sees his elders,
2. She is a very kind-hearted wmánj she usually
whatever “mimals the finda is, the neighbourhood and tricks
24(a) Conduction and convection
Conductions Boat is transferred from one
_neighbouring molecules by jostling
in turn, causes the energy of the t to it to increase. Thus molecules
((best) without leaving their
argy. {best) from one
ma) to another by the
„the fluid themselves,
of Relative Hund
ta
joined
7. (m) (1) compare the hu
eye, as an optical ins trument" with a CAME IN..
(11) Explain meaning of the "short-sightednes
of the
ve and its correction. (b) Explain, Che help of labelled ray dingin,
of an antrosiomical telescope.
the constr
suspended
on the
8. (a) Derine the
300 candle power, are
bove the ground and 40 ft. the intensity of illumination 1) Immediately beneath one of the,
between the lampa,
mplitude, frequepoy, and wave-
wave motion,
slocity of sound in air, asured in the
#equations, and
thm xế wolf as her own children,
3. He is a man of many hobbies; he
ing once for a while and has now
(a) in organ pipe has a length of 2
stamp-coli
dancingä
ECO,
Neglecting end-corrections, find the frequency of its fundamsatal and first overtone when it is (1) open, and -(14) elossa, taking the relocity of sound in air as 34,000 cm. per (d) The four strings of a violin are tuned to
D and G respectively, the E be the highest in pitch. Assuming the string,
material and the B-4
what minti stringa is all foi