Pra Soklan Kemasukan f1 Pfs (Latest)

8/4/2019 Pra Soklan Kemasukan f1 Pfs (Latest)

http://slidepdf.com/reader/full/pra-soklan-kemasukan-f1-pfs-latest 1/7

UJIAN PRAKEMASUKAN PELAJAR-PELAJAR TINGKATAN 1 (2011)

PENANG FREE SCHOOL

SECTION A

1. A ship can float in the sea because

I its internal part is hollow

II it is overall less dense than seawater

III it is made from material less dense than seawater

A I only

B I and II only √

C II and III only

D I, II, and III

2.

The diagram above shows a model of a ventilation system of a house. R and S represent twoopenings in the house. What must be done to make the temperature in the house to drop to its

lowest level?

Opening R Opening R

A Close Close

B Close Open

C Open Close

√ D Open Open

HSP YEAR 5

3. When 50 ml of water and 50 ml of alcohol are mixed together, the total volume of the

mixture is less than 100 ml. This is because

A the mixture of water and alcohol forms a smaller compound.

B the water molecules are larger than alcohol molecules. C there are space between water molecules and alcohol molecules.

D The water reacts with alcohol.



4. Traditional houses in villages are often built with many windows and opening. Why?

A To provide fresh supply of air

B To provide a good view of the village

C To allow heat to flow efficientlyD To promote good neighbourhood relations

HSP YEAR 5

5. Diagram below shows two identical glasses, P and Q, which are stuck together.

Diagram 14

Glass Q is dipped into the hot water for a few minutes.

What makes the glasses able to separated easily?

A Glass Q contracts more than glass P

√ B Glass Q expands more than glass P √

C Glass Q and glass P expand at the same rateD Glass Q and glass P contract at different rate

HSP YEAR 5

6. Diagram below shows four wooden models, P, Q, R and S.

Which of the following shows the correct arrangement of the wooden models in descending

order of stability?

A P, R, Q, S

B Q, S, P, R C R, P, S, Q

D S, Q, R, P



HSP YEAR5

7. Which of the following devices use/s the principle of expansion and contraction of heat?

I Thermos flask

II Thermometer

III Thermostat

A I only

B I and II only

C II and III only √

D I, II, and III

HSP YEAR4

8.

Find the total area of solid P and Q

A 45 cm2

√ B 55 cm2

C 80 cm

2

D 82 cm

2



SECTION B

1. Diagram below shows a chicken egg that sinks in tap water but floats in concentrated

common salt solution.

State two reasons for the above observations.

(i) chicken egg is denser than tap water

(ii) chicken egg is less dense than the concentrated common salt solution

[ 2 marks ]

2. Give one reason for each of the following.

(i) Teapots are usually coated with a shiny silver layer.

To retain heat so that the tea will keep warm longer

[ 1 mark ]

(ii) Car radiators are painted black.

To radiate heat faster so that the engine will not get overheated

[ 1 mark ]



3. Ten marbles of the same size and shape are put into a measuring cylinder, as shown in the

diagram below. Calculate the volume of each marble.

(a) Number of marbles = 10

[ 1 mark ]

(b) Early reading of volume = 30 cm3

[ 1 mark ]

(c) Final reading of volume = 45 cm3

[ 1 mark ]

(d) Total volume of marbles = 15 cm3

[ 1 mark ]

(e) Volume of 1 marble = 15 cm3

10

= 1.5 cm3

[ 2 marks ]



4. Diagram below shows activities, which have been carried out by a student to determine the

volume of marbles.

(i) Write the initial reading and the final reading shown above.

Initial reading : 37 cm3

Final reading : 27 cm3

[ 2 marks ]

(ii) What are the volumes of 20 marbles?

37 cm3 - 27 cm3 = 10 cm3

[ 2 marks ]

(iii) From the result in 4 (ii), calculate the volume of one marble.

= 10 cm3

20

= 0.5 cm3

[ 2 marks ]



HSP YEAR4

5.

Balance P is used to measure the mass of object X.

The following information shows the value of object X.

Value of object X measured by balance P = 1 kg

(a) Name the measuring tools shown in Figure.

Lever balance

[ 1 mark ]

(b) What is the S.I. unit for mass?

kg

[ 1 mark ](c) What is the mass of object X?

1 kg

[ 1 mark ]

(d) What will the mass of object X be if it is measured on the Moon?

1 kg

[ 1 mark ]

(e) Explain your answer in (d)

The value of mass is always the same in all places[ 1 mark ]

Pra Soklan Kemasukan f1 Pfs (Latest)

Documents

Transcript of Pra Soklan Kemasukan f1 Pfs (Latest)