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BAHAGIAN PENGURUSAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KECEMERLANGAN

MODUL PERFECT SCORESEKOLAH BERASRAMA PENUH TAHUN 2011

PHYSICS

Panel Penyedia:NOR SAIDAH BT CHE HASSAN (Kolej Tunku Kursiah) - Ketua PN JENNYTA BT NOORBI (SMS Tuanku Munawir) HASLINA BT ISMAIL (SMS Hulu Selangor) PN KAMARIAH BT MOHD ARSYAD (MCKK) EN JAMALUDIN BIN ABD GHANI (SBPI Batu Rakit)

Physics Perfect Score_SBP_ 2011BPSBPSK

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Guidelines on how to carry out the PERFECT SCORE Workshop: 1. The workshop is divided into three slots of total of 5 hours. It is suggested that one section to be discussed in 1 hour. (Please refer to the table below) 2. Materials and equipments needed for this workshop : Perfect Score Module (7 sections - Section I VII) Transparency / A4 paper/test pad permanent and whiteboard marker pen overhead projector / visualize / direct projector whiteboard/ majong paper

Physics Perfect Score_SBP_ 2011BPSBPSK

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CONTENTS

NUM

SECTION

CONSTRUCT

Page

1

I

UNDERSTANDING

4 - 10

2

II

DECISION MAKING

11 - 18

3

III

CONCEPTUAL

19 - 24

4

IV

PROBLEM SOLVING (QUALITATIVE)

25 - 31

5

V

PROBLEM SOLVING (QUANTITATIVE)

32 - 39

6

VI

EXPERIMENT (PAPER 3 SECTION A)

40 - 47

7

VII

DESIGN EXPERIMENT

48 -52

Physics Perfect Score_SBP_ 2011BPSBPSK

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SECTION I UNDERSTANDING(Paper 2 Section B and C )

Question 1 [Forces and Motion]

A 100 m runner try to suddenly stopped when he reached the finished line cause him fell on the ground. Explain the situation using the appropriate physics concept. [4 marks]

Question 2 [Forces and Motion] When the ball on left end of a Newtons cradle is pulled aside (Diagram 2.1) and allowed to fall, the ball on the far end is knocked away from the others with the same speed as the first ball (Diagram 2.2).

Explain, in term of momentum and energy transfer, why the ball on the opposite end is knocked away from the others. [4 marks]

Question 3 [Forces and Pressure]

Using the physics concepts explain why a boat is at different levels in the sea and in the river, although the boat carries the same load. [4 marks]

Physics Perfect Score_SBP_ 2011BPSBPSK

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Question 4 [Heat]

Using kinetic theory of gasses, explain the changes in volume, pressure and temperature of the ping pong ball after boiled water is poured onto it. [4 marks]

Question 5 [Heat]

Diagram 5 shows a radiator of a car

Explain how the radiator can be cool. Why water is used to cooling agent. [4 marks] Question 6 [Light]

Diagram 6 shows Ali standing at the side of a pond. Ali can see the image of the fish and the image of the dragon-fly in the water as shown by the ray diagram.

Diagram 6By using physics phenomenon explain how Ali can see the image of the fish and the image of the dragon-fly.. [4 marks]

Physics Perfect Score_SBP_ 2011BPSBPSK

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Question 7

[Light]

Diagram 7 shows the superior mirage which occurs over cold water surface and snow.

Cool water

Using physics concepts, explain why the observer can only see the image of the ship. [4 marks] . Question 8 [Light]

With the aid of ray diagram, explain how a man should shot a fish in water so that he hits the target . [4 marks]

Question 9 [Light]

Diagram 9 shows a simple overhead projector. An image is formed by the projector on the screen. With the aid of a ray diagram, show how the ray travel from the halogen lamp to form the image on the screen.

[ 4 marks ]

Physics Perfect Score_SBP_ 2011BPSBPSK

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Mirror

Question 10 [Waves] Diagram 10 shows the pattern of sea waves when approaching the beach.

Explain in terms of the wave phenomena, why the water waves follow the shape of the beach as it approaches the shore.

[4 marks]

Physics Perfect Score_SBP_ 2011BPSBPSK

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Question 11 [Waves] Explain why water wave is calmer at the bay then at the cape. [4 marks] Question 12 [Waves]

Explain how the sound wave is used to determine the depth of an ocean. [4 marks]

Question 13 [Waves] When two spherical dippers vibrates on a water surface, a wave pattern of interference is produced.

Explain why the water level in the ripple tank must be at constant depth during the experiment. [4 marks] Question 14 [Electricity] Explain the advantages of parallel circuit in a house wiring system [4 marks] Question 15 [Electricity] Diagram 14 shows the burning candle placed between a pair of parallel metal plates.

+

E.H.T [V.L.T]

Switch

Metal plates

Diagram 14

What will happen to the candle flame when the extra high voltage supply (E.H.T) is switch on? Explain your answers.

[4 marks]

Physics Perfect Score_SBP_ 2011BPSBPSK

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Question 16 [Electromagnetism] Explain the working principle of transformer [4 marks] Question 17 [Electromagnetism]

Diagram 10.3 shows a circuit breaker.

Explain how the circuit breaker works. [ 4 marks] Question 18 [Electromagnetism]

When a current carrying conductor is placed in a magnetic field the conductor will move. What causes the conductor to move? Explain your answer. [4 marks] Question 19 [Electronics] A semiconductor diode is made from combination of an n-type semiconductor and p- type semiconductor. Explain how an n-type semiconductor is produced. [4 marks]Physics Perfect Score_SBP_ 2011BPSBPSK

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Question 20 [Electronics]

Diagram 12.1 shows a circuit consisting of a diode and a bulb. Explain how the bulb will light up [4 marks] Question 21 [Radioactivity]

Explain how the GM tube is able to detect the radioactivity radiation [4 marks]

Physics Perfect Score_SBP_ 2011BPSBPSK

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SECTION II DECISION MAKING(Paper 2 Section A Question 8; Section C )

Question 1 [Force and Pressure] Table 1 shows the characteristics of four structures of ship P, Q, R, and S. Structure of ships U V W X Strength Of the metal used High Low High Low Table 1 As a researcher in a ship manufacturing company, you are assigned to study the structure used to make the ship to support heavy cargoes. You are given four choices of the structures P, Q, R and S. The table above shows the structures of the ship. Explain the suitable characteristics of the structure to be used to make the ship. Determine the most suitable structure to be used to make the ship to support heavy cargoes. Give reasons for your choice. [10 marks] Ship Base Cross section area Wide Wide Small Small Volume of the air space in the ship High High Low Low

Shape Streamlined Oval Circle Streamlined

Question 2 [Force and Pressure] Diagram 2 shows a hydrometer is used to determine the density of a liquid. These apparatus is an application of Archimedes Principle.

Diagram 2

Physics Perfect Score_SBP_ 2011BPSBPSK

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You are required to build a hydrometer that can be used to measure densities of concentrated acids. Table 2 shows the characteristics of 4 types of hydrometers L, M, N and O.

Hydrometer Type of material of hydrometerL M N O Based on the table 2; (i) Plastic Plastic Glass Glass

Diameter of stem/ cm0.5 2.0 0.5 2.0 Table 2

Density of shots/ kgm-31000 1300 9800 8000

Diameter of bottom bulb/ cm1.0 3.0 3.0 1.0

Explain the suitable characteristics of the hydrometer so that it can be used to measure different densities of acids.

(ii)

Decide which hydrometer is most suitable and give reasons. [10 marks]

Question 3 [Force and Pressure] Diagram 3 shows four racing motorcycles, P, Q, R and S, with different specifications. You are required to determine the most suitable motorcycle to move fast and safe when racing. Study the specifications of all the four motorcycles from the following aspects: Explain the suitability of the aspects. Justify your choice.

Racing bike A Type of brake : without ABS Mass : 205.0 kg

Racing bike B Type of brake : without ABS Mass : 220.0 kg

Physics Perfect Score_SBP_ 2011BPSBPSK

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Racing bike C Type of brake : ABS (Antilock Brake System) Mass : 208.0 kg

Racing bike D Type of brake : ABS (Antilock Brake System) Mass : 242.0 kg

Diagram 3 [10 marks]

Question 4 [Force and Pressure] Diagram 4 shows the parts of brake systems car. Brake pads Brake pedal

Brake fluid

Brake disc

Diagram 4

Physics Perfect Score_SBP_ 2011BPSBPSK

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Table 4 shows the specifications of components that can be used in brake systems , P,Q,R, S and T.

Specifications of components in a car brake system Brake system Specific heat capacity of brake disc -1 0 -1 J kg C 360 2400 890 2210 1460 Melting point of brake disc 0 C 930 1220 580 1940 2070 Compression of brake fluid The material use of brake pads ceramics steel ceramics ceramics steel

P Q R S T

Difficult Difficult Easy Difficult Easy

Table 4

Based on Table 4;You are required to determine the most suitable brake system and explain the suitability of the aspects in Table 4 [10 marks]

Question 5 [Heat] As a researcher you are assigned to investigate the characteristics of four types of liquid that are suitable to be used as a coolant for a car engine. Table 5 shows the characteristics of the liquids. characteristics Liquid J K L M Boiling o point / C 121 128 210 101 Specific heat -1 Capacity / J kg -1 C . 5500 4750 1195 3588

Viscosity High Low High Low Table