Qss 5116 Scphy P1 Prelim 09
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QUEENSWAY SECONDARY SCHOOL PRELIMINARY EXAMINATION 2009 5116 SCIENCE (PHYSICS, CHEMISTRY) PAPER 1 Level:
SEC. 4 Express
Time: 1 hr Total Marks: 40
Name/Index No: ___________________________________ (
)
Class: ____________ INSTRUCTIONS TO CANDIDATES: DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. Read these notes carefully. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, registration number and class in the spaces at the top of this page and on the Answer Sheet. There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer sheet.
INFORMATION FOR CANDIDATES Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this question booklet. You may use a calculator. A copy of the Periodic Table is printed on page 15.
This Question Paper consists of 15 printed pages including the cover page. [Turn over] 1
1
A pupil uses a ticker-tape timer to investigate the movement of a trolley. Every second, the ticker-tape timer puts 50 dots on the tape. The tape pulled by the trolley is shown below. •
•
•
•
•
•
•
•
•
•
20 cm What is the speed of the trolley? A. C.
2
0.2 cm/s 91 cm/s
B. D.
0.4 cm/s 100 cm/s
The speed time graphs of car A and car B are shown below. When did the cars achieve the same speed? v/(m/s) 8
car A
4
car B
0 5
A. C.
3
10
4.0 s 8.0 s
B. D.
t/s
5.0 s 10.0 s
An experiment is carried out by an astronaut on the surface of the moon. A coin and a feather are dropped at the same instant from the same height. Which statement is right?
A. B. C. D.
The coin falls faster than the feather, but both take a longer time than if they were falling from the same height on Earth. The coin falls faster than the feather, but both take a shorter time than if they were falling from the same height on Earth. They fall together taking a longer time than the coin would in falling from the same height on Earth. They fall together taking a shorter time than the coin would in falling from the same height on Earth.
2
•
4
A sphere P of weight 2 N is suspended by a string as shown below. Find the tensions, T. T A. B. C. D.
1N 2N 3N 4N
P
2N
5
A uniform beam of 2 m is being fixed to a wall and loaded by the forces shown below. Given that the beam is at equilibrium, calculate the force F. 4N A. B. C. D.
2N 4N 7N 8N
1m mark F
6
Diagram shows an object of mass 1800 kg and base area of 9 m2. What is the pressure acting on the object? (Take g = 10 m/s2)
A. B. C. D.
200 N/m2 1800 N/m2 2000 N/m2 16200 N/m2
3
7
A ball is released from rest at one end of a smooth curved rail as shown in the diagram. Neglecting air resistance and friction, which of the following about the motion of the ball are correct? Z
X
8
(i) (ii) (iii) (iv)
The ball has a maximum kinetic energy at point X. Upon reaching point Y, the ball will roll back towards point X. The ball will reach point Z with a new maximum potential energy. The ball has a maximum potential energy at point Y.
A. B. C. D.
(ii) and (iii) only. (i), (ii) and (iv) only. (ii) and (iv) only. (i), (iii) and (iv) only.
A monkey of mass 20 kg climbs a vertical pole of height 3.0 m in 10 s. The power generated by the monkey is ________. (Take g = 10 m/s2)
A. B. C. D.
9
Y
30 W 60 W 80 W 90 W
When a piece of ice is in the process of melting to water, which of the following statement is true?
A. B. C. D.
The inter-molecular force weakens and the molecules move faster. The inter-molecular force weakens and the speed of molecules remains constant. The inter-molecular force becomes stronger and the molecules move faster. The inter-molecular force becomes stronger and the molecules move slower.
4
10
The table below gives the melting and boiling point of four substances. Which substance is a liquid at 300oC?
A. B. C. D.
11
melting point / oC
aluminium ethyl alcohol mercury pentane
660 -112 -39 -180
boiling point / oC 2470 78 357 37
The diagram below shows a wire gauze placed on a tripod. The gas from the Bunsen burner is turned on. Light the gas from above the wire gauze. Flame is seen only above but not below the wire gauze. What is the reason?
A. B. C. D.
12
substance
The wire gauze is not hot enough There is no gas below the wire gauze Wire gauze is a good conductor of heat Wire gauze is a poor conductor of heat
The diagram shows a ray of light moving from a plastic block into air.
air plastic S
If the critical angle, s, is 43.2°, what is the refractive index of plastic ? A. C.
1.40 1.46
B. D.
1.41 1.50
5
13
The ray diagram shows the formation of a real image by a converging lens.
What is the focal length of the lens? A. C.
14
3 cm 7 cm
B. D.
4 cm 12 cm
The diagram shows how the displacement of a wave in a ripple tank varies with distance from the dipper. The dipper makes 6 vibrations per second.
distance from source/cm
What is the velocity of the wave? A.
15
B.
40 cm/s
C.
120 cm/s
D.
240 cm/s
A sonic ‘tape measure’ is used to measure the length of the room. It measures a time interval of 0.060 s between transmitting a sound pulse and receiving the echo. The speed of sound in air is 330 ms-1. How far is the reflecting wall from the tape measure ? A.
16
12 cm/s
5.5 m
B.
9.9 m
C.
11 m
D.
20 m
A charge of 600 C passes around an electric circuit in 2 minutes. What is the average current? A.
1200 A
B.
300 A
C. 6
5A
D.
0.2 A
17
A circuit consists of a battery connected as shown below. The p.d.s across the resistors are V1, V2, V3 and V4.
V3 R1
R2
R3
R4 V1
V2 V4
What is the p.d supplied by the battery? A. B. C. D.
18
V1 + V2 V1 + V2 + V3 V1 + V2 + V3 + V4 V1 + V2 – V3 – V4
Which piece of copper wire has the least resistance? A.
B.
C.
D.
7
19
The current in a power tool, and working normally, is 2 A. How much current is in each of the three wires connecting the tools to the 'mains'?
Live A. B. C. D.
20
2A 2A 2A 2A
Neutral
Earth
0 0 2A 2A
0 2A 0 2A
Diagram 1 below shows the magnetic field near a bar magnet and an object XY. In diagram 2, XY has been turned around.
What is XY?
A. B. C. D.
A copper rod A magnet with the north pole at X A magnet with the north pole at Y A rod of soft iron
8
SEC. 4 Express
Time: 1 hr Total Marks: 40
Name/Index No: ___________________________________ (
)
Class: ____________ INSTRUCTIONS TO CANDIDATES: DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. Read these notes carefully. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, registration number and class in the spaces at the top of this page and on the Answer Sheet. There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer sheet.
INFORMATION FOR CANDIDATES Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this question booklet. You may use a calculator. A copy of the Periodic Table is printed on page 15.
This Question Paper consists of 15 printed pages including the cover page. [Turn over] 1
1
A pupil uses a ticker-tape timer to investigate the movement of a trolley. Every second, the ticker-tape timer puts 50 dots on the tape. The tape pulled by the trolley is shown below. •
•
•
•
•
•
•
•
•
•
20 cm What is the speed of the trolley? A. C.
2
0.2 cm/s 91 cm/s
B. D.
0.4 cm/s 100 cm/s
The speed time graphs of car A and car B are shown below. When did the cars achieve the same speed? v/(m/s) 8
car A
4
car B
0 5
A. C.
3
10
4.0 s 8.0 s
B. D.
t/s
5.0 s 10.0 s
An experiment is carried out by an astronaut on the surface of the moon. A coin and a feather are dropped at the same instant from the same height. Which statement is right?
A. B. C. D.
The coin falls faster than the feather, but both take a longer time than if they were falling from the same height on Earth. The coin falls faster than the feather, but both take a shorter time than if they were falling from the same height on Earth. They fall together taking a longer time than the coin would in falling from the same height on Earth. They fall together taking a shorter time than the coin would in falling from the same height on Earth.
2
•
4
A sphere P of weight 2 N is suspended by a string as shown below. Find the tensions, T. T A. B. C. D.
1N 2N 3N 4N
P
2N
5
A uniform beam of 2 m is being fixed to a wall and loaded by the forces shown below. Given that the beam is at equilibrium, calculate the force F. 4N A. B. C. D.
2N 4N 7N 8N
1m mark F
6
Diagram shows an object of mass 1800 kg and base area of 9 m2. What is the pressure acting on the object? (Take g = 10 m/s2)
A. B. C. D.
200 N/m2 1800 N/m2 2000 N/m2 16200 N/m2
3
7
A ball is released from rest at one end of a smooth curved rail as shown in the diagram. Neglecting air resistance and friction, which of the following about the motion of the ball are correct? Z
X
8
(i) (ii) (iii) (iv)
The ball has a maximum kinetic energy at point X. Upon reaching point Y, the ball will roll back towards point X. The ball will reach point Z with a new maximum potential energy. The ball has a maximum potential energy at point Y.
A. B. C. D.
(ii) and (iii) only. (i), (ii) and (iv) only. (ii) and (iv) only. (i), (iii) and (iv) only.
A monkey of mass 20 kg climbs a vertical pole of height 3.0 m in 10 s. The power generated by the monkey is ________. (Take g = 10 m/s2)
A. B. C. D.
9
Y
30 W 60 W 80 W 90 W
When a piece of ice is in the process of melting to water, which of the following statement is true?
A. B. C. D.
The inter-molecular force weakens and the molecules move faster. The inter-molecular force weakens and the speed of molecules remains constant. The inter-molecular force becomes stronger and the molecules move faster. The inter-molecular force becomes stronger and the molecules move slower.
4
10
The table below gives the melting and boiling point of four substances. Which substance is a liquid at 300oC?
A. B. C. D.
11
melting point / oC
aluminium ethyl alcohol mercury pentane
660 -112 -39 -180
boiling point / oC 2470 78 357 37
The diagram below shows a wire gauze placed on a tripod. The gas from the Bunsen burner is turned on. Light the gas from above the wire gauze. Flame is seen only above but not below the wire gauze. What is the reason?
A. B. C. D.
12
substance
The wire gauze is not hot enough There is no gas below the wire gauze Wire gauze is a good conductor of heat Wire gauze is a poor conductor of heat
The diagram shows a ray of light moving from a plastic block into air.
air plastic S
If the critical angle, s, is 43.2°, what is the refractive index of plastic ? A. C.
1.40 1.46
B. D.
1.41 1.50
5
13
The ray diagram shows the formation of a real image by a converging lens.
What is the focal length of the lens? A. C.
14
3 cm 7 cm
B. D.
4 cm 12 cm
The diagram shows how the displacement of a wave in a ripple tank varies with distance from the dipper. The dipper makes 6 vibrations per second.
distance from source/cm
What is the velocity of the wave? A.
15
B.
40 cm/s
C.
120 cm/s
D.
240 cm/s
A sonic ‘tape measure’ is used to measure the length of the room. It measures a time interval of 0.060 s between transmitting a sound pulse and receiving the echo. The speed of sound in air is 330 ms-1. How far is the reflecting wall from the tape measure ? A.
16
12 cm/s
5.5 m
B.
9.9 m
C.
11 m
D.
20 m
A charge of 600 C passes around an electric circuit in 2 minutes. What is the average current? A.
1200 A
B.
300 A
C. 6
5A
D.
0.2 A
17
A circuit consists of a battery connected as shown below. The p.d.s across the resistors are V1, V2, V3 and V4.
V3 R1
R2
R3
R4 V1
V2 V4
What is the p.d supplied by the battery? A. B. C. D.
18
V1 + V2 V1 + V2 + V3 V1 + V2 + V3 + V4 V1 + V2 – V3 – V4
Which piece of copper wire has the least resistance? A.
B.
C.
D.
7
19
The current in a power tool, and working normally, is 2 A. How much current is in each of the three wires connecting the tools to the 'mains'?
Live A. B. C. D.
20
2A 2A 2A 2A
Neutral
Earth
0 0 2A 2A
0 2A 0 2A
Diagram 1 below shows the magnetic field near a bar magnet and an object XY. In diagram 2, XY has been turned around.
What is XY?
A. B. C. D.
A copper rod A magnet with the north pole at X A magnet with the north pole at Y A rod of soft iron
8
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