1=RUER
日六初月五年申戊
IMAH KIU YAT
育敎僑華
ijflata of heating)
英中會考物理科答案
,陸永熾。
Busfested "abawere
PHYSICS
CERTIFICATE OF EDUCATION EXAM, 1968
SECTION B
A
Headings taken in the experimenti Mage of calorimeter and stirrer Mass of calorimeter, stirrer and
water
therefore mass of watar
fantial temperature of water
Final temparati
across
water
Tjas taken
Specific heat of coppe
the roome ter
-1600Uend/min.
**10000 cal/aio)
[Mass of water added pe
·10000.g
40
250
日一月六年八六九一周公年七十五國民高中
Since. Sine - -
Sint
= sin. 11
5(a) The amount of heat involved in the ouange of
states of unit gras of a substanco is kaOVDAB latent beat, v
Latent heat of fusion of ice is the quantity of heat required to change unit mass of 16 foom ice to water without change of temperatura, the lower fixed point).
macros --
Temp.
20
=26°45'
RS
=&R tan 1:
5x0-504) =2·52
jjuired value of HS is 2.52 ft.
angle AUD 30
angle NOD is grester than the critical sugle. The ray 00 is totally anu, internally reflected. Bagle POC 30 deg. angle UC angle Auoj (veri, opp. angles). Therefore, the deviated aagle LUP (ỗ )-ya-twice the angle LÚC and is 60 deg
If the ray just emerges from face AC, The res
ractive index, u, equals j
(6)
Calorime të i
besting Coll
Telamp
-ofteàl/g′′/
deg.
Calculation o
Energy supplied
«VIL góð Lea
ototal thermal capăti
emperatura rian
salories:
(c)At B
bas its minimum voiuse at *-døg
Water at A is cooled and becomes deaser It sinks to B. This gaes on until water at B is degrees C.
ua further cooling,
expands instead of com saeta.
Water "particles ase
dense and rise up. The
Lemperature A remain constant at 4 deg.C AL A
Purther cooling
on the aurí
Water is a post condustar, Tempera in bicker the Dioce.
sin 40°
155
7(a)i)To form a real, inverteu
ii)To form a virtual; éréct and
the abject is placed at G.
juage, the object is placed. Mainished
at A
ularg
i pag
Tünn
density of wa
column respect
quantities
and the hé:
the object is placed 6 cm in front of! To obtain a real image of size 2 cm.)
ws. To obtain a
the lens
the obtain is put 2cm in front of virtual image of size 2 cm,
Tempr
Thermomete
memake
Tim
Heat received:
urm of Jud
80000: cat,
-10 akkalarng
#iduu. * JU
Total hout given by the guinea;
30000 cal
Pig -110,000
VOKONG PUBLI
Heat produced by the guinea
Home LaTAWA. and B. The two thermometera BED spaced from the hoster, as they are is filled with mercury) hest.
rate ap and down the "copps'
a good conductar, the graph indi-
in temperature.
moladu-las, naar the beater ârü They become lighter
and rias ap ater around: C. Heat is
star!
1) Energy give a
SECTION S
Refractive Indera
dig per minute -1100001
x60
Ն
Iva
IBX
"The refido save inder of wavas passingy
28 defined as From one median to uanther the rulla of the speeds of the waves (a) the two meulan
It is measured by the cutia of the 6 KUT of the angle of incidence to the side of tus augle of refractroli,
(C)
The
lens.
Thermome
)Power of the drill
tover spent in heating)
(6)
Beat
sved by the alloyl
Glea/sec)
0.2
Tins Lakeb
-16000-**
700
Objast for Bystens Image of The object
Eye
COMPOUND MICROSCOPE
Eye len
Final image
Object lens
Object
(未完轉入第四張第三度):