青教僑華 頁三第張六第
三廿月十年申戊夏
WAH KIU YAT PO
日橋
四期 TMT 日二十月二十年八六九一曆公年七十五國民華中
(接第六張第二頁)
文中學會考試題預習
学題預腎
(d) I believed
Jalee
decision
wrong.
bad unfuat
物理科
英文科
劉士俊
Bat
(X)
陸永熾。
(e) e all
took.
TEST 6
drovel paid (
A taxls to the ferry,
Read the passage carefully s
Once upon a time the tortoise went to the village to get a bag of salk. He tied the bag to a long string because his hands were so short.
Then be put the string over his neck and began to go to his home, pulling the bag of salt.
asked -told
(f) Susgh as invitedí
Lunch,
called
accepted.
(K)
adbittad arranged: agreed.
to go with us last week,
won
R
Different weights are put on the hangers. The system is tapped gently to miminise resistance offered by friction on the pulleyai When equilibrium is mintained, the weights are recorded and two pencil-crosses are marked along each thread. This is done with the help of a.. mirror placed on the paper in brder to eliminate errors due to parallax.
A suitable scale is chosen to draw a force- ulagtan of P and H. The closed triangle is then made, and it is found that the line Joining the lead of R to the tail of P is equal in magnitude and direction to G.
4
The cord and the top of the frame form an equilateral triangle, so that each portion of the cord makes 309 with the vertical. The forces on the frame are, therefore, ita weight mg vertically downwards and two tension
in the cord at an angle 300 to the vertical.
Resolve the forces vertically:
2Tc09300
mg
5 x 32·
2.cos10°
92.4 pd.
2.89 lb.wt.
Ans. The tension is 2.89 lb.wt.
The problem may be solve by triangle of force
as in diagram. de
R - 2(Tcos30°):
y Newton's Third law of motion action and reaction on the nail is equal but oppositei.
Rng
2Tc0930-ig
T-2.89 1b.wt.
Questions for this week:
(2, (4) What is meant by centre of gravity?
12.
(b) Explain the terms afable, unstable and neutral
equilibrium.
(c) Explain how you would locate the G.G. or an
Arregular lamina,
(d) A thin uniform metai plate ABC1 19 2 Tt. square.
It is folded so that the side AB lies along the line joining the mid-points of AD and BC, and the folded part is pressed flat. Find the position of the centre of gravity of the folded. plate.
The boom in fig. (ay is uhiform and weighs" 500 lb.xt. Find the tension in the gug wire, end the horizontal and vertical components of the force exerted on the boom at the lower and
uy wire
The lizard was sitting outside nis nouse He saw the tortoise, and the tortoise was pulling slong Ffa bag of walk. The lizard waid nothing. but when the tortoise was not looking he went along. behind him, cut the string. took the
Balk and kept it.
When the cartolae Young TORE HIM MBIT FRO not coming along behind him he went to look for it, and he soon found the lizard who was holding the bagi Be said, "I have inat my bag of walk. Have you taken
holding my galt?" "No," said the lizard, "I was going along. the road when I say this bag of salt. You wers ant carrying it. I just picked it up. You didn't lose 1t, did you?” 20
Some Line at thrwards the teren199 was going along the road when he saw the lizard. The lizard was eating some white ants inside their next and bis tail was lying on the road. The tortoise, picked up the tail and pulled it off. "What are you doing?" carfed the lizard. "You have pulled off my tall. "I don't think so,” answered the tortoise, going the road when I eg thịm tail. It was just lying on the road and I picked it up.. It isn't yours 18 it?
Here are ten sentences soout the story. Some of thes are true and gore are untrue. Put a tick (,) against the ones that are true.
The tortoise went to the city to get a bax of salt.
(b) Since his hands were short, he tied it to a long
string. (
He was on the way home.
The lizard was inside the house.
The lizard took the bag by cutting the string, When the tortoise discovered that the bag was not bahind him, he went back to look for it, (~~) The lizard said that he had taken it from the tortoise. ()
(b) The lizard was eating some white ants outside
neat he met the tortoise again..
(1) Bis tall was lying on the road.
(1) The tortoise pulled the tall off. ( )
Fut a tick (v) against the word which best completen the meaning of each sentences
(*) The guard
WAVED: will wave has waved waved
16 Hoving.
(b) Listen!
(0) If it rains, I
study
(d) ram studylog { have studied! studied
e) Ky work
his flag when the train
18 Knocking! knocke knocked
at the door
ill knock
stay
shall star stayed
at home.
am staying
in this school for three years.
has heen finished :( will be finished had been finished could be finished
have begurit begin
Our vor
beginning
{1) When the bell rangs began
take
Was killed.
has killed
(e) My shee
by a volf last night.
was being kil has been killed!
shall take
took
nere this evenine.
have taken: (
an used
used.
(4) I
to my unclets Camr ever
was used
weekend.
use
Cone
(3) I
shell come{ dame
have cons.
(h) We have beater
overcome i gai
($): The
[moved
raised
(1) The mouse
their team txioa.
her handkerchief to her frien
looks at Tooke after looka for looks round
the patienta.
4. Look at the example below. Each sentence nae a
letter. The sentences are in the wrong order. The right order la P.A,C, so the letters R,A,C, are written in the answer space 1.2.1. prouideð! Examples
A. Bin Tobu var mivien and a furniture was often
bitten by them..
P. Mr. Smith's house had a lot of mice.
C. So Mr. Smith decided to have a cat to driva
them away.
A. He showed her bow to fix stamps.
B. He taught her many thinga:
C. He explained the best way of
from the piece of envelane.
4. People think it in a stupid animal...
atamn?
B. The poor donkey is often badly treated. C. Yet the donkey is not so stupid as it looks. D. When we want to call a man a fool, we say he
to a donkey, or an 898.
2
Mrs. Wộng This way, Doctor. I'm zlad volve COLE.
Dr. Chan, Tell, let's go and see him: Kre. Wong It'a David. • He's got a cold. but rather a bad one, I think.
D. Dr. Chen. Now, Mrs. Mong. That's the matter?
E. Mra. Tong Good morning, Doctor, I'm glad you'
2.
A. He put it under the hole, climbed to the top, and
then jumped.
AUA A
Soon it was on nis way to the police-station." The first time he fell back among the foxes.
In one corner, hidden behind a big fox, he found) a short folding ladder.
E. But he tried again and this time he climbed out
through the hole,
2.3.
A She saw the workers cutting the steel tubes and
fitting them together,
B. A few weeks ago Tom tock Susan to look round the
factory
C. The saddles and bells and rubber tyres are nat
made in this factory.
She was very interesten
E. Then
the bicycles were painted, and the wheeze saddles were put on,
These are brought from azner bakers and are saded before the bioycles are sent out to the shops.
2.
1000
(b) A singla force is to be applied to the bar in Fig. (b) to maintain it in equilibrium in position shown. The weight of the bar is neglected, What is the magnitude of the forcal, And where should it be applied?;
as soon as I have finished my work:
Put e tick (V) against the word which best completes) the meaning of each sentence
(a) My dog alwa
'shouts{.
hite barks
the strang
calls
fuay
(b) While I was idle at home, they wer
at work
сішову lazy. diligent
FIwanted to
c1090 take opan switch
ffthe
Flight
Below are five shore conversations. In each of them put a tick (1) against group of words which has Completes the meaning.
(a) She is a lovely girl, isn't she?
"Tea, she waR,”
"No, she wasn't."
"Yea, she was 80,"
"No, she was.”
(b) Let's take a walk after supper.
"All right. There do we go then?"
"Oh, it's good idea.4
"Then 'will we start."
"How far do we expect to go. Rave you had your lunch yet?
Yes, I did."
"No, I hadn't." "No, not yet."
"No, I haven't".
(a) How are you? /
"I'm very well." "How are you?”
"Thank you very much.' "I'm glad to see you..
(e) Shall I carry this basket "Thank you very much.*
"I am sorry to trouble you. what's all right.".
"You are very kind."
Anawera to TEST. 5
(a) shall be, (b) nad eaten, (0) has been printed, (d) writes, (e) was born, (f) belonge, (3) is interested, (b) be heated, (1) succeeded, () is. (2) married. (1) will come.
2. (a) (0) (1) (g) (n) (1)
3. (a) Kr. Wong's house, (b) the dog's lag, (c) the
children's toys, (d) the oats! ears.
Wings.
the fly'
lived, tired, there, notas, in, down, one, there. could.
5. () open. (0) Bour, (0) game, (d) solid, (f) bad,
(b)