莫二集張尺第二日六初月十年戌庚瑟夏 WAH KIU YAT PO
郭日僑
三期星日四月一十年〇七九一曆公年九十五國民華中,育教僑華
1971 英文中學會考試題預習專欄
DRAUMALTÍM SUNLIGHT PRESS
物理科
PHYSICS
LESSON TWO
EXERCISE 1
Some of the following are preca
a beam balance
of using
The object to be weighed should always be placed in right-hand pan.
Before raising the beam, the small rider on the beam should be pushed to left end of the beam.p
When extra weights are added, the beam should be lowered first
Forceps should be used for handling weights. Hor objects should be cooled first before
Which of the following alternatives is
3, 4 and 5 only
23 and 4 only
E.
1, 3, 4 and All of thém
only
4 and 5 only
Archimedes' Principle Impl
body floats on a liquid,
the upthrust equals to the product of the volume of the body and the density of the Liquid.
the force required to immerse totally the floating body is
proportional to the fraction of the volume above the liquid surface. the weight of the body is the same as the weight of liquid it displaces
the depth of submergence is proportional to the ratio in densities between liquid and body.
the apparent loss is zero.
zero.
ich of the following alternatives is correct?
2,4 and 5 only
1, 3 and 5 only
4 and only
3 and 4 only
2 and 3 only
(3) Which of the following statements are not equivalent to Archimedes Principle?
The apparent loss, of a body when immer in a fluid is equal to the upthrust exerted by the fluid,
The volume of the fluid displaced when a body is immersed in the fluid is equal the volume of the body.
The upthrust is equal to the volume of fluid displaced.
The weight of a floating body is equal to
the upthrust.
The upthrust is equal to the weight of
fluid displaced.
2 and 3 only
B. 1, 2 and 3 only.
C. 2, 3 and 4 only
and 5 only
and 5 only
solid B of S.G. 1.5 is attached to another solid X. so that this combination just floats. liquid of S.G. 1.2. The solid X must have
A. a smaller mass than B
Bits density heavier than B.
a smaller volume than B.
its density lighter than B.
E. a larger mass than B.
(5) Boyle's Law gives the relation between pressure
and volume and includes the following factor
for a given mass of gas
for the same kind of gas
3. at constant temperature
for all kinds of gases
for all kinds of fluids. for all ki
Which of the following alternatives is correct?
A 3 and 4 only
D.. 1, 2 and 3 only
B. 1, 3 and 4 only E. 3 and 5 only
C. 1 and 4 only
(6) 3 coplanar forces are in equilibrium, they have
some of the following prope Les
they can be represented by parallelogram of forces
they can be represen by triangle of, forces.
they are concurrent
their resultant is zero"
the sum of moments of these forces about.
any point is zero
2 and 4 only
2, 4 and 5 only
3, 4 and 5 only
3, 4 and 5 only
2 and 3 only
(7) The force to lift up a body with uniform velocity
from ground is the same
the weight of the body
2. the attractional force between earth and
the body
the force required to push the body steadily along a smooth horizontal surfacer
the product of mass and acceleration due
to gravity.
the product of mass and
City
2, 3 and 4 only S. 1 and 4 only
2 and 5 only
2 and 4 only
only
A frictional force between a stationary solid and the horizontal plane on which it rests
increases as a norizontal applied force increases provided that the body remain at rest
is independent of the weight of the body when the body remains at rest is sometimes zero
is in a direction parallel and opposite to any force applied to the body
divided by the normal reaction is normal smaller than unity
of the following alternatives
correct?
P. 5 only
3:
and 5 only.
and 4 only
1, 2, 3 and 5 only TUMBALL of them
of a simple penauion(uepends
(4) The period of t
the emplirude of the pendulum the mass of the pendulum
3. the length of the string the nature of the string
the acceleration due to gravity
Which of the following alternative is correct
P. 3 and 4 only
Q.
2, 3 and 5 only 3 and 5 only
2 and 4 only 1, 3 and 5 only
(10) A body falls freely from the top of a clif
and during the last second it falls 11 of
36:
whole height. The height of the cliff is
$76 £t
436 ft
R
326 ft.
S. 256 ft 96 nt
We fall forward when a moving bus decel
B
stop, this can be explained by Law of conservation of, enérgy Law of conservation of momentum Newton's third law of the motion Newton's second law of motion Newton's first law of motion
An object is suspended from a spring balance
in a lift, the reading of the balance will be greater when the lift is moving
up steadily.
up with acceleration
up with retardation
down with acceleration. down with retardation
ich of the following alt
2 and 4 only),
B. and 5 only.
None of the 5 cases,
remains constant
E
and 5 only
1971 英文中學會考試題預習專欄
** SUNLIGHT PRESS
化學科
CHEMISTRY
LESSON TWO
4th Nov, 1970.
EXERCISE 1
Fill in the following blanks
Chemical Name ghd carbon dioxide
Formula
Common Name
2g Lime
1) Aqua regia 2) Baking soda ̈ ̧
3) Borax
4) Caustic potash
5) Caustic soda,
6) Common salt
2) Corrosive sublimate
8) Chile saltpeter-
9) Espom salt
10) Ether..
1) Flowers of sul
112) Glycerine
(13) Hypo
(14) Laughing Gas
(15) Lime water
(16) Lunar caustic (17) Litharge
--(1-8) Milk-of magnesia
(19) Muriatic acid
(20) Niler
(21) Plaster of Paris, (22) Quick silver (23) Red lead (24) Salt
(25) silica
peter
Slaked lime
(27) Sugar
(28) TNT.
(29) Washing soda
(30) White lead
Fill in the following blanks
Name
-[]): AlummiumT
Enatives is true?
(2) Banum
(3) Bromine
(4) Calcium
and 2 only
the reading al
4 long time, the reason
due to the presence of pendulum by the air
Op swinging
this
-(5) Carbon,
-(6) Chlorine
(7) Copper
on the
that he acceleration of pendulum cancels with the acceleration due to gravity due to the presence of air, resistance. that the tension of string will finally become zero
due to the attractiona) holding it
'force"
The distance covered by a body falling through aliquid in a given time depends on
the mass of the body
2. the acceleration due to gravity
the density of liquids
the volume of the body
5.the frictional force exerted by the
on the body
Which of the following alternatives is true?
3 and 5only
(8) Hydrogen
(9) Iodine:
(10) Lead (11) Magnesiumi
(12) Mercury (13) Nitrogen
(14) Phosphorus.
(15) Potassium:
(16) Silicon
(17) Silver
(18) Sodium
3 and 4 only.
3 and 5 only All of them
(19) Sulphur (20) Zinc
15) Newton's first law of motion implies that
there is nothing but a force capable of giving motion to a stationary body it is impossible. for a a force to act point without opposition.
force is of the nature of change of momentum when a given force is applied to a body. The mass of the body and its acceleration
in inverse proportion.
a thread of negligible mass may not pulled with a greater force at one end than is applied at the other
Which of the following alternatives is true?
A. 1 only
D. 1, 4 and 5 only
B. 2 and 3 only
1, and 4 only
2, 3 and 4
Symbol Atomic
16
Atomic number
In the tollowing exercises is a constant.) Boyles Law can be represented by
Pk
Vk
D
ΡΙ
E. TV K
arles Law can be represented by
PT K
V/TEK
PVT k -PV/T
The Gas Equation can be represented by
PV k
PV/T k
PVT = K
E. VT/P