1 Diagram 1 below show three physical quantities. | Displacement | Force | Momentum | Diagram 1 These physical quantities can be categorized as star A Base quantity B Scalar quantity C Vector quantity D Derived quantity
2 Diagram 2 shows the graph plotted by Siew Ling after conducting an experiment to study the relationship between length, l and period, T. Diagram 2 What type of graph did Siew Ling draw? star A A straight line graph that passes through the origin and has a positive gradient. B A straight line graph that passes through the origin and has a negative gradient. C A straight line graph that does not pass through the origin and has a positive gradient. D A straight line graph that does not pass through the origin and has a negative gradient.
3 The Principle of the Conservation of Momentum states that star A In a collision, the total momentum before the collision is always equal to the total momentum after the collision if no external force acts on the system. B In a collision, the total momentum before the collision is the sum of the total momentum after the collision if no external force acts on the system. C In a collision, the total momentum before the collision is greater than the total momentum after the collision if no external force acts on the system.
4 Diagram 3 shows two steel balls, P and Q, are dropped from top of a building to the ground. Assume the air resistance is negligible. Diagram 3 Which of the following velocity-time graph shows the correct motion of P and Q? star A A Figure B B Figure C C Figure D D Figure
5 Which of the following shows the effect of inertia? I A girl dries her wet hair by moving her head quickly. II A strong steel structure has been installed on the lorry between the driver's seat and the area used to carry the logs. III The hammer head is tightened by tapping the handle against the floor. star A I and II only B I and III only C II and III only D I, II and III
6 Diagram 4 shows the speed-time graph for a skydiver. He falls freely from an aircraft, then opens his parachute and lands safely on the ground. At which point does the parachute fully opens? Diagram 4 star A A B B C C D D
8 Diagram 6 below states a physics law. What law is explained by the above statement? star A Kepler's First Law B Kepler's Second Law C Kepler's Third Law
9 The orbital period of Earth is 1.0 year, while Jupiter's orbital period is 11.9 years. If the orbital radius of Earth is 1.5 x 10^11 m, calculate the orbital radius of Jupiter. star A 2.88 x 10^10 m B 7.82 x 10^11 m C 1.79 x 10^12 m D 6.16 x 10^12 m \frac{T_B^2}{r_B^3} = \frac{T_M^2}{r_M^3} r_M^3 = \frac{T_M^2 \times r_B^3}{T_B^2} = \frac{11.9^2 \times (1.5 \times 10^{11})^3}{1.0^2} = 4.7793 \times 10^{35} r_M = \sqrt[3]{4.7793 \times 10^{35}} = 7.82 \times 10^{11} m
10 Diagram 7 shows a clinical thermometer used to measure a patient's body temperature. Diagram 7 What is the physics concept applied in the thermometer? star A Specific heat capacity. B Thermal equilibrium. C Specific latent heat of fusion. D Specific latent heat of vaporisation.
11 A substance is heated at a uniform rate. It changes from a solid to a liquid, and then to a gas. Diagram 8 is a graph that shows how the temperature changes with time. Diagram 8 Which part of the graph shows latent heat of vaporisation? star A P B Q C R D S
12 Diagram 9 shows a container with a volume of 7.5 cm^3 and a pressure of 105 kPa. When the piston is pushed, the volume of the container becomes 4.3 cm^3. Diagram 9 What is the air pressure in the container after being compressed? star A 30 kPa B 60 kPa C 120 kPa D 183 kPa P_1V_1 = P_2V_2 P_2 = \frac{P_1V_1}{V_2} = \frac{105000 \times 7.5}{4.3} = 183140 \approx 183 kPa
14 Diagram 10 shows two identical tuning forks, X and Y, which are placed side by side. Tuning fork X is struck to make it vibrate. Tuning fork Y then vibrates too. Diagram 10 This effect is known as star A Pitch B Damping C Resonance D Oscillation
15 In a lecture hall, the sound from the loudspeaker is often heard as an echo. What is the best solution to the cause of this problem? star A Install thick fabric curtains. B Replace the wooden floor with tiled flooring. C Increase the brightness of the lighting in the lecture hall. D Use a loudspeaker with lower amplitude.
16 Diagram 11 shows an application of electromagnetic waves in the medical field. Diagram 11 Which statement is correct about the wave used? | | Type of wave | Frequency | Total Energy | |:--|:-----------------------------|:------------------|:-------------------| | A | Transverse | High | Low | | B | Transverse | High | High | | C | Logitudinal | High | High | | D | Logitudinal | Low | Low | star A A B B C C D D
17 Diagram 12 shows an object in front of a convex lens. Diagram 12 What is the image distance? star A 15 cm B 30 cm C 45 cm D 60 cm \frac{1}{f} = \frac{1}{u} + \frac{1}{v} \frac{1}{v} = \frac{1}{f} - \frac{1}{u} = \frac{1}{15} - \frac{1}{20} = \frac{20 - 15}{300} = \frac{5}{300} v = \frac{300}{5} = 60 \text{ cm}
18 Diagram 13 shows a light ray emerging from a perspex block. Diagram 13 What is the critical angle of the perspex? star A 37.73° B 42.15° C 60.16° D 70.66° \frac{\sin r}{\sin i} = \frac{1}{\sin c} \frac{\sin 60}{\sin 35.5} = \frac{1}{\sin c} 1.49 = \frac{1}{\sin c} \sin c = \frac{1}{1.49} = 0.6711 c = \sin^{-1} 0.6711 = 42.15^\circ
19 Which of the optical instruments apply the concept of total internal of reflection? star A A Figure B B Figure C C Figure D D Figure
20 Diagram 14 shows an object placed 10 cm in front of a concave mirror. The focal length, f, of the concave mirror is 5 cm. Diagram 14 What are the characteristics of the image formed? star A Real, same size, inverted B Real, diminished, inverted C Virtual, same size, upright D Virtual, diminished, upright
21 All the following phenomena involve force equilibrium, except star A a car moving at a constant velocity B A ship is floating stationary on the surface of the sea. C A portrait hanging on the wall. D an aeroplane accelerating uniformly in the air
22 Diagram 15 shows a 6 kg load suspended from a smooth pulley. A force of 100 N is applied to lift the load. Diagram 15 What is the acceleration of the load? star A 6.86 ms^-2 B 58.81 ms^-2 C 6.67 ms^-2 D 26.48 ms^-2 F = T - W ma = T - mg a = \frac{T - mg}{m} = \frac{100 - 6(9.81)}{6} = 6.86 \text{ ms}^{-2}
23 Which situation will produce zero resultant force? star A A Figure B B Figure C C Figure D D Figure
24 Diagram 16 below shows a hydrometer being used to determine the density of a liquid. Diagram 16 Which physics principle is the hydrometer based on? star A Boyle's law B Pascal's principle C Archimedes's principle D Bernoulli's principle
25 Diagram 17 below shows a liquid flowing steadily through a tube. Diagram 17 Which of the following graphs shows the change in liquid pressure, P as it flows along the tube from O to X? star A A Figure B B Figure C C Figure D D Figure
26 Diagram 18 below shows a boat with a weight of 1200 N floating on a water. Diagram 18 All of the following are true except star A the buoyant force is equal to 1200 N. B the weight of the water displaced is 1200 N. C the volume of the boat is equal to the volume of the water displaced. D the density of the boat is not necessarily less than the density of the water.
27 Diagrams 19(a) and 19(b) show two dry cells arranged in different ways. Diagram 19(a) Diagram 19(b) Which of the following is correct if dry cell in Diagram 19(a) are arranged as in Diagram 19(b)? | | Electromotive force (e.m.f) | Internal resistance, r | |---|---|---| | A | Increases | Increases | | B | Increases | Decreases | | C | Decreases | Increases | | D | Decreases | Decreases | star A A B B C C D D
28 Diagram 20 shows a circuit containing two resistors and a bulb. The ammeter reading is 1.5 A when switch S is turned off. Diagram 20 Calculate the reading of ammeter when the switch S is on. star A 2.08 A B 3.33 A C 4.28 A D 5.33 A R = \frac{V}{I} = \frac{9}{1.5} = 6 \Omega rintangan mentol = 6 \Omega - 5 \Omega = 1 \Omega \frac{1}{R} = \frac{1}{5} + \frac{1}{10} R = 3.33 \Omega R = 3.33 + 1 = 4.33 \Omega I = \frac{V}{R} = \frac{9}{4.33} = 2.08 A
29 Diagram 21 shows the arrangement of apparatus to describe the behaviour of charge object in electric field. Metal coated polystyrene ball is touched to the positive plate. Diagram 21 The frequency of oscillation of the polystyrene ball increases when star A The length of nylon thread decreases. B The mass of polystyrene ball increases. C the distance between metal plates decreases. D The potential difference between metal plates decreases.
30 Diagram 22 shows the electricity tariff. | Unit of electricity | Cost per unit | |---|---| | First 200 units | RM0.22 | | Every subsequent unit | RM0.26 | Diagram 22 An air conditioner with a power rating of 2.0 kW is operated for 8 hours a day. Calculate the cost of using the air conditioner for the entire month of May in RM. star A RM3.52 B RM13.64 C RM109.12 D RM120.96 P = 2.0 kW t = 8 jam sehari Bilangan hari dalam bulan Mei = 31 hari bil unit = 2.0 \times 8 \times 31 = 496 unit 200 unit pertama = RM0.22 / unit Unit seterusnya = RM0.26 / unit kos = (200 \times RM 0.22) + (296 \times RM 0.26) = RM 120.96
31 Diagram 23 shows two wires penetrate the same cardboard. Diagram 23 Which of the following is the pattern for the magnetic field produced? star A A Figure B B Figure C C Figure D D Figure
32 Diagram 24 shows a current-carrying coil in a magnetic field. Diagram 24 State the direction of rotation of the coil when the switch is turned on. star A Stationary B Clockwise rotation C Anti-clockwise rotation D Clockwise rotation and anti-clockwise rotation alternately
33 When a bar magnet is pushed faster into a solenoid, the magnitude of the induced current produced increases. This is stated by the star A Lenz's Law B Faraday's Law C Fleming's right-hand rule D Maxwell's screw rule
34 What is meant by thermionic emission? star A A process involving the acceleration of eletrons from cathode to the anode B A process used to produce beams of high-velocity electrons C A process involving the emission of electrons from a hot metal surface D A process where light is produced when electrons strike the fluorescent screen.
35 Diagram 25 below shows a symbol for a type of transistor. Diagram 25 Which of the following are true about the terminals X, Y and Z? | | X | Y | Z | |---|---|---|---| | A | Collector | Emitter | Base | | B | Emitter | Base | Collector | | C | Base | Collector | Emitter | | D | Collector | Base | Emitter | star A A B B C C D D
36 Diagram 26 shows an equation that represents alpha decay. $^{214}_{n}Po \rightarrow ^{m}_{82}Pb + \alpha$ Diagram 26 What are the values of m and n? | | m | n | |:--|:--|:--| | A | 212 | 88 | | B | 210 | 80 | | C | 214 | 82 | | D | 210 | 84 | star A A B B C C D D 214 = m+4 m = 210 n = 82 + 2 n = 84
37 A radioactive element has an initial mass of 40 g and a half-life of 5 days. Which of the following statements is correct about the mass of the radioactive element? star A 5 days later, the mass is 20 g. B 5 days earlier, the mass is 80 g. C 10 days earlier, the mass is 80 g. D 10 days later, the mass is 20 g.
38 A chain reaction can occur in a reactor because during nuclear fission star A new neutron are produced. B the temperature is very high. C two fission fragments are produced. D a large amount of energy is released.
39 Einstein's photoelectric equation for a metal is hf = \frac{1}{2}mv^2 + W. \frac{1}{2}mv^2 represents star A the maximum kinetic energy of free electrons in the metal. B the minimum energy required to ionize one of those metal atoms. C the maximum kinetic energy of a photoelectron emitted from the metal surface. D the minimum energy of a photon that can emit a photoelectron from the surface of the metal.
40 When a photoelectric material is illuminated with blue light of wavelength, \lambda = 452 nm, a photoelectron with 0.75 eV is emitted. What is the threshold wavelength of the photoelectric material? [Given hc = 1.243 x 10^3 eV nm] star A 452.0 nm B 621.5 nm C 1205.3 nm D 1657.3 nm E = K_maks + W E = \frac{hc}{\lambda} = \frac{1.243 \times 10^3}{452} = 275 eV W = E - K_maks = 275 - 0.75 = 2.0eV \frac{hc}{\lambda_o} = 2.0 \lambda_o = \frac{hc}{2} = \frac{1.243 \times 10^3}{2} = 621.5 nm
41 Diagram 5 shows the distance measured from the center of the Earth and R is the radius of the Earth. If r is any distance measured from the centre of the Earth and g is the Earth's gravitational acceleration, what is the relationship between gravitational acceleration, g and the distance from the centre of the Earth, r in the form of a graph? star A Graph A B Graph B C Graph C D Graph D