1 Which of the following base quantity and its SI unit is true? | | Base quantity | SI unit | | :-- | :---------------------------- | :-------------- | | A | Mass | g | | B | Time | s | | C | Length | cm | | D | Temperature | °C | star A Mass, g B Time, s C Length, cm D Temperature, °C T4 Chapter 1.1 Physical Quantities
2 Diagram 1 shows an arrangement of apparatus to investigate the relationship between the length of a simple pendulum and the period of oscillation. Which pair of variables are correct? | | Manipulated variable | Responding variable | Constant variable | |:--|:-------------------------------------------------|:-----------------------------------|:---------------------------------| | A | Length of pendulum | Period of oscillation | Mass of bob | | B | Period of oscillation | Mass of bob | Length of pendulum | | C | Length of pendulum | Mass of bob | Period of oscillation | | D | Mass of bob | Period of oscillation | Length of pendulum | star A Length of pendulum, Period of oscillation, Mass of bob B Period of oscillation, Mass of bob, Length of pendulum C Length of pendulum, Mass of bob, Period of oscillation D Mass of bob, Period of oscillation, Length of pendulum T4 Chapter 1.2 Scientific Investigation
3 Diagram 2 shows a car moving with a velocity of 20 m s⁻¹. The car slowing down when approaching a red traffic light. The car travelled for 50 m before its stop completely. What is the acceleration of the car? star A 4.0 m s⁻² B 8.0 m s⁻² C - 4.0 m s⁻² D - 8.0 m s⁻² T4 Chapter 2.1 Linear Motion
4 Diagram 3 shows the graph of changes in displacement, s with time, t of an object. Which velocity-time graph represents the same motion as the object? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 2.2 Linear Motion Graphs
5 A trolley X of mass 6 kg and a velocity of 3 m s⁻¹ collides elastically with another trolley Y of mass 3 kg with a velocity of 2 m s⁻¹. If trolley X stops immediately after the collision, calculate the final velocity of trolley Y. star A 4 m s⁻¹ B 5 m s⁻¹ C 8 m s⁻¹ D 9 m s⁻¹ T4 Chapter 2.5 Momentum
6 Diagram 4 shows the force-time graph acting on an object. The impulse of the object at t = 1.0 s is, star A -240 N s B -120 N s C 600 N s D 1200 N s T4 Chapter 2.7 Impulse and Impulsive Force
7 Two objects, A and B, each with masses m_A and m_B, are placed at a distance, r from each other. If the gravitational force between the two objects is F, what will happen to the gravitational force if the mass of object A is doubled and the distance between the two objects is halved? star A The gravitational force becomes four times greater B The gravitational force becomes eight times greater C The gravitational force becomes twice as great D The gravitational force remains unchanged T4 Chapter 3.1 Newton's Universal Law of Gravitation
8 Kepler's Second Law states that star A the major axis is equal to the planet's average distance from the Sun. B the square of the orbital period of a planet is directly proportional to the cube of a major axis. C the orbit of a planet around the Sun is an ellipse, with the Sun at one the focus. D a line drawn from a planet to the Sun always sweeps over equal areas in equal intervals of time. T4 Chapter 3.2 Kepler's Laws
9 Diagram 5 shows the Measat satellite in an orbit with distance of 613 km above the Earth's surface. The radius of the Earth is 6.37 x 10^6 m and the mass of Earth is 5.98 x 10^24 kg. What is the linear speed, v of the satellite in orbit? star A 1.87 x 10^3 m s^-1 B 2.75 x 10^3 m s^-1 C 7.56 x 10^3 m s^-1 D 9.96 x 10^3 m s^-1 T4 Chapter 3.3 Man-made Satellites
10 Diagram 6 shows two copper blocks, L and M in thermal contact. The initial temperatures of L and M are 50 °C and 30 °C respectively. Which statement is correct when L and M are in the state of thermal equilibrium? star A Temperature of L is higher than temperature of M B Quantity of heat in L and M is the same. C Rate of net heat transfer between L and M is zero. D Rate of change in temperature of L is bigger than Rate of change in temperature of M. T4 Chapter 4.1 Thermal Equilibrium
11 Diagram 7 shows four type of liquid, P, Q, R and S of same mass filled in the same type of container. All the containers are placed under the sunlight for one hour and caused the different temperature increases, \Delta\theta. Which arrangement of specific heat capacity is correct? star A C_P < C_R < C_S B C_Q < C_P < C_S C C_Q < C_S < C_P D C_S < C_R < C_P T4 Chapter 4.2 Specific Heat Capacity
12 Diagram 8 shows a manometer connected to a gas tank. If the atmospheric pressure is 76 cm Hg, which statement is true about the pressure of gas in the tank? star A Equal to 76 cm Hg B Larger than 76 cm Hg C Smaller than 76 cm Hg D Equivalent to 0 cm Hg T5 Chapter 2.3 Gas Pressure
13 Diagram 9 shows a load hanging from a spring swinging in water. Which displacement-time graph describes the motion of the load? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 5.2 Damping and Resonance
14 Diagram 10 shows water waves propagating through a perspex block in a ripple tank. Which wavefront pattern can be observed when the waves pass through the perspex block? star A A Figure B B Figure C C Figure D D Figure T4 Chapter 5.4 Refraction of Waves
15 Diagram 11 shows an interference pattern of water waves from two coherent sources P and Q. Which point is the node? star A A B B C C D D T4 Chapter 5.6 Interference of Waves
16 Diagram 12 below shows an optical device to see distant objects using a prism. What is the physics concept used in this device? star A Reflection B Refraction C Diffraction D Total internal reflection T4 Chapter 6.2 Total Internal Reflection
17 Diagram 13 shows an incomplete ray diagram for a concave lens. Among position A, B, C and D, which position is the position of the image formed? star A A B B C C D D T4 Chapter 6.3 Image Formation by Lenses
18 The focal length of the objective lens and the eyepiece lens of a light microscope are f_o and f_m respectively. The distance between the two lenses is L. Which of the relationship between L, f_o and f_m is correct for the light microscope at normal adjustment? star A L = f_o + f_m B L < f_o + f_m C L > f_o + f_m D L = f_o / f_m T4 Chapter 6.5 Optical Instruments
19 If the focal length of the convex lens is f, where should the object be placed in front of a convex lens for it image is same as the object? star A Equal to 2f B More than 2f C Less than 2f D Between f and 2f T4 Chapter 6.3 Image Formation by Lenses
20 Diagram 14 shows a box of mass 5 kg being pulled with a force of F on a rough surface. The frictional force on the rough surface is 6 N. The box moves with an acceleration of 2.42 m s^-2. What is the force, F of the box? star A 24.75 N B 26.54 N C 45.26 N D 54.06 N T5 Chapter 1.2 Resolution of Forces
21 Diagram 15 shows a boy of weight 320 N sliding down an inclined plane with angle of inclination 30° at uniform velocity. W_x is the component of weight parallel to the inclined plane while F_f is the frictional force acting on the boy. Why does the boy slide down with uniform velocity? star A The frictional force is greater than the component of weight parallel to the inclined plane. B The frictional force is less than the component of weight parallel to the inclined plane. C The frictional force is equal to the component of weight parallel to the inclined plane. D There is no frictional force acting on the boy. T5 Chapter 1.3 Forces in Equilibrium
22 Table 1 shows the results of an experiment to investigate the relationship between load and extension when a spring is stretched. | Weight of load, F (N) | Extension, x (cm) | | 100 | 1.0 | | 150 | 1.5 | | 200 | 2.0 | | 250 | 2.5 | | 300 | 3.0 | The original length of the spring is l_0 = 10.0 cm. What is the constant variable? star A Weight of load, F B Weight of load C Extension, x D Diameter of the spring used T4 Chapter 1.2 Scientific Investigation T5 Chapter 1.4 Elasticity
23 Diagram 16 shows a simple mercury barometer. The physical quantity represent by h is star A vacuum. B gas pressure. C liquid pressure. D atmospheric pressure. T5 Chapter 2.2 Atmospheric Pressure
24 Diagram 17 shows a mercury manometer used to measure gas pressure in an air flow pipe. If atmospheric pressure is 76 cm Hg, what is the gas pressure in the pipe. Give answer in unit Pa. [Density of mercury, p = 13600 kg m^-3 and gravitational acceleration, g = 9.81 m s^-2] star A 6.8042 x 10^4 Pa B 1.3475 x 10^5 Pa C 6.8042 x 10^6 Pa D 1.3475 x 10^7 Pa T5 Chapter 2.3 Gas Pressure
25 Diagram 18 shows a bottle containing a balloon that is accelerating upwards towards the surface of the water surface. Which of the following statements is correct? star A The total of the buoyant force of the bottle and the balloon is equal to the total of the weight. B The total of the buoyant force of the bottle and the balloon is smaller than the total of the weight. C The total of the buoyant force of the bottle and the balloon is greater than the total of the weight. T5 Chapter 2.5 Archimedes' Principle
26 Diagram 19 shows the electric field lines for a pair of charged particles, L and M. What is the charge of L and M? | | L | M | |---|---|---| | A | Negative | Negative | | B | Positive | Positive | | C | Negative | Positive | | D | Positive | Negative | star A Negative, Negative B Positive, Positive C Negative, Positive D Positive, Negative T5 Chapter 3.1 Current and Potential Difference
27 Diagram 20 shows a simple circuit with a bulb. The bulb lights up brightly when the switch is closed. Which statements is false about the bulb? I The heating filament of the bulb is made of copper. II The heating filament is in coiled shape. III The heating filament is made of high resistivity material. IV The high thickness of the heating filament produces brighter light. star A I and II B I and IV C II and III D III and IV T5 Chapter 3.2 Resistance
28 Diagram 21 shows a circuit with a dry cell that has internal resistance. What is the change of the ammeter and the voltmeter reading when the rheostat is adjusted to reduce the resistance? | | Ammeter reading | Voltmeter reading | | A | Decreases | Decreases | | B | Decreases | Increases | | C | Increases | Decreases | | D | Increases | Increases | star A Decreases, Decreases B Decreases, Increases C Increases, Decreases D Increases, Increases T5 Chapter 3.3 Electromotive Force (e.m.f.) and Internal Resistance
29 Diagram 22 shows an electric kettle labelled 240 V, 1000 W is connected to a power supply 240 V. What is the electric energy produced by the electric kettle in 1 second? star A 0.24 J B 4.17 J C 240 J D 1000 J T5 Chapter 3.4 Electrical Energy and Power
30 Diagram 23 shows a left-hand gesture which represents the Fleming Left Hand rule. Z respresents the direction of star A Induced current B Magnetic field C Motion D Current T5 Chapter 4.1 Force on a Current-carrying Conductor in a Magnetic Field
31 Diagram 24 shows a bar magnet in front of a solenoid. Which of the actions will produce south pole at Q? star A The magnet is pulled away from the solenoid. B The magnet is pushed towards the solenoid. C The magnet is at rest in the solenoid. D The polarity of the bar magnet is reversed and is pushed towards the solenoid. T5 Chapter 4.2 Electromagnetic Induction
32 Diagram 25 shows a simple transformer with an alternating current, a.c supply. The bulb lights up with normal brightness. What happens when the a.u. input supply is replaced with a dry cell with higher voltage? star A The bulb does not light. B The brightness of the bulb does not change. C The brightness of the bulb increases. D The brightness of the bulb decreases. T5 Chapter 4.3 Transformers
33 Diagram 26 shows the thermionic emission process in a vacuum tube. What will happen to the electrons when Extra High Tension, E.H.T power supply is switched on? star A Electrons move towards the heating filament at high speed. B Electrons move towards the cathode at high speed. C Electrons move towards the anode at high speed. D Electrons remain on the surface of the heating filament. T5 Chapter 5.1 Electron
34 Diagram 27 shows the display of CRO from the process of converting an alternating current to direct current. What are the electronic devices needed for the process? star A diode and capacitor B diode and transistor C transistor and capacitor D resistor and capacitor T5 Chapter 5.2 Semiconductor Diode
35 Diagram 28 shows a transistor circuit with a thermistor and a bulb. What will happen to the resistance of the thermistor and the bulb when the temperature of the surrounding is at room temperature? | | Resistance of thermistor | Bulb | |---|---|---| | A | Low | Lights up | | B | Low | Does not lights up | | C | High | Lights up | | D | High | Does not lights up | star A Low, Lights up B Low, Does not lights up C High, Lights up D High, Does not lights up T5 Chapter 5.3 Transistor
36 Diagram 29 shows the radioactive decay series of nucleus R to nucleus V. How many alpha particles and beta particles are emitted in this process? | | Number of alpha particles | Number of beta particles | |---|---|---| | A | 2 | 2 | | B | 2 | 1 | | C | 1 | 2 | | D | 1 | 1 | star A 2, 2 B 2, 1 C 1, 2 D 1, 1 T5 Chapter 6.1 Radioactive Decay
37 What is the nuclear reaction that produces energy on the surface of the Sun? star A Nuclear fusion B Radioactive decay C Nuclear fission D Chain reaction T5 Chapter 6.2 Nuclear Energy
38 The energy of a photon is E and the wavelength is, \lambda. What is the energy of a photon when the wavelength, \lambda is doubled? star A \frac{1}{4}E B \frac{1}{2}E C E D 2E T5 Chapter 7.1 Quantum Theory of Light
39 What is the meaning of threshold frequency? star A The highest frequency of an electromagnetic wave. B The maximum frequency that can be heard by the human ear. C The minimum frequency required to produce a sound wave. D The minimum frequency for a light photon to produce photoelectric effect. T5 Chapter 7.2 Photoelectric Effect
40 What is the maximum velocity of the photoelectron emitted out when a ray with energy 1.213 x 10^-18 J is irradiated on the surface of a platinum metal having a work function of 6.35 eV? [ 1 eV = 1.6 x 10^-19 J, mass of electron = 9.11x 10^-31 kg ] star A 6.58 x 10^5 ms^-1 B 7.73 x 10^5 ms^-1 C 8.21 x 10^5 ms^-1 D 9.94 x 10^5 ms^-1 T5 Chapter 7.3 Einstein's Photoelectric Theory