Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused Vertically downwards on the markings Vertically upwards on the markings Slantingly towards the right on the markings Slantingly towards the left on the markings 2. The physical quantity that has the same dimensions as impulse is? surface tension momentum pressure torque energy 3. Which of the following physical quantities is NOT a vector? electric field intensity velocity work force magnetic induction 4. Which of the following pairs of physical quantities comprises vectors? energy & power capacitance & inductance friction & momentum force ratio & velocity ratio electric field potential & electric field intensity 5. A vector of magnitude 5 units in the north direction is combined with another vector to give zero resultant. The other vector is 5 units in the west direction 5 units in the east direction 5 units in the south direction 10 units in the north direction 10 units in the south direction 6. A vector quantity can only be completely described when ________ and _______ are mentioned. distance and specified displacement moment and momentum magnitude and motion magnitude and direction 7. A machine gun with a mass of 5kg fires a 50g bullet at a speed of 100m/s. The recoil speed of the machine gun is 8. What is the relationship between mechanical advantage (MA), velocity ratio (VR) and efficiency in percentage? E = MA/VR × 100% MA = E × VR MA = 1/E × 100% VR = 1/(sinθ×MA) 9. Which is the least possible error in using a rule graduated in cm? 2.0cm 0.2cm 3.5cm 0.5cm 1.0cm 10. The equilibrant of two or more concurrent forces is equal in magnitude to the resultant but opposite in direction to the sum of the magnitude of the forces in magnitude and direction to the resultant to the difference in magnitude of the forces 11. A ball is thrown vertically upwards from the ground with an initial velocity of 20m/s. The time spent in air by the ball is 4s 10s 5s 2s 12. Which of the followings are the correct SI units of the quantities indicated?I. N (Force)II. N/m (Torque)III. Watt (Power)IV. Kgm/s² (Momentum) I, III & IV Only I & III Only I & II Only I, II & III Only 13. The external parts of an object can be measured accurately through the use of which scientific instrument? Meter rule Micrometer screw guage Vernier caliper None of the above 14. The period of revolution round the sun is maximum by which among the following planets? Mercury Venus Earth Mars 15. Which of the following is a fundamental unit? Joules Ampere Newton Watts 16. Which of the following readings cannot be determined with a meter rule? 2.55cm 2.56cm 2.50cm 2.05cm 2.00cm 17. The resultant force of a couple is one zero infinity half 18. The resultant of two forces acting on an object is maximum when the angle between them is 180° 270° 90° 0° 45° 19. A man walks 8km north and then 5km in a direction 60° east of north. Find the distance from his starting point. 14.36km 3.00km 11.36km 13.00km 20. Which of the following is not a luminous object? The sun The moon A lit candle A star 21. Which of the following is a set of vectors? mass, weight and density mass, volume and density acceleration, velocity and moment force, mass and moment 22. A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point Q. What is the total displacement? 24km south 4km north 6km west 14km east 24km north 23. In which of the following devices is the expansion of a solid a disadvantage?I. Simple pendulum II. Fire alarms III. Thermostat IV. Bimetallic thermometer II, III, and IV only I only II and III only III only 24. Which of the following instruments has a reading accuracy of 0.5mm? spring balance vernier callipers meter rule protractor micrometer screw gauge 25. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35.01mm 35.0mm 35mm 35.00mm 26. If a ball is moving at 18m/s in a direction inclined at 60° to the horizontal. The horizontal component of its velocity is 9m/s 6√3m/s 9√3m/s 6m/s 18m/s 27. A platinum resistance thermometer has resistances of 5.25Ω and 9.75Ω at 0°C and 100°C respectively. When the resistance is 8.25Ω, the temperature is 63.6°C 75.0°C 84.6°C 66.7°C 28. Ampere-hour is the unit of which among the following? Intensity of current Power Amount of charge Energy 29. Boyle's law may be written as P1VI = P2V2 V1 = V2/T1T2 P1V1/T1 = P1V1/T2 P1T1 = P2T2 30. Which metal is commonly used for making an electromagnet? Cobalt Copper Iron Nickel 31. A particle of weight 120N is placed on a plane inclined at an angle 30° to the horizontal. If the plane has an efficiency of 60%, what is the force required to push the weight uniformly up the plane? 100N 50N 175N 210N 32. A vernier scale was formed by dividing a length of 19mm into 20 equal parts. If this vernier is used with a main scale marked in mm, what is the smallest distance that can be measured? 0.005mm 0.5mm 0.001mm 0.1mm 0.05mm 33. Light from the laser is ________. Composite Dispersed light Monochromatic Incoherent 34. At what temperature will the density of water be maximum? 4° C - 4° C 32° C 0° C 35. What is the inductance (L) of an inductor whose reactance is 1Ω at 50/π Hertz (H)? 0.01 H 10 H 1 H 100 H 36. Who discovered X-Rays? Einstein J. J. Thomson Madam Curie Roentgen 37. If the volume of a gas is recorded as 76 cm³ at a temperature of 27°C with a pressure of 800 mmHg. What will be the volume of the gas at S.T.P.? 24.3 cm³ 36.2 cm³ 72.8 cm³ 25.7 cm³ 38. A machine has a V.R of 4. If it requires 800N to overcome a load of 1600N, what is the efficiency of the machine? 60% 50% 40% 2% 39. Fire in the diesel engine is produced by which of the following? Self starter Compression Friction Spark plug 40. Galvanometer can be converted into a voltmeter by using a high resistance wire in series a high resistance wire in parallel a low resistance wire in series a low resistance wire in parallel 41. With an increase in pressure the melting point of water will increase decrease remain unaffected first increase and then decrease 42. Which of the following quantities has the same unit as the Watt? force x velocity force x time force x acceleration force x distance 43. A boy drags a bag of rice along a smooth horizontal floor with a force of 2N applied at an angle of 60° to the floor. The work done after a distance of 3m is 5J 6J 4J 3J 44. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused vertically downwards on the markings slantingly towards the left on the markings vertically upwards on the markings slantingly towards the right on the markings 45. Find the acceleration of a body of mass 20kg under forces of 3N and 10N acting horizontally in opposite directions 0.35m/s² 0.50m/s² 0.15m/s² 2.86m/s² 46. At what temperature are the temperatures on the Celsius and Fahrenheit scales equal? - 273° Celsius 273° Celsius 40° Celsius - 40° Celsius 47. A charge 50μC has an electric field strength of 360N/C at a certain point. The electric field strength due to another charge 120μC kept at the same distance apart and in the same medium is 864N/C 150N/C 944N/C 18N/C 48. One of the following readings represents the measurement of the length of a metal rod using vernier callipers. 5.165cm 5cm 5.16cm 5.160cm 5.0cm 49. The lower fixed point corresponds to a length of 20mm on the stem of a thermometer while the upper fixed point corresponds to 160mm. The temperature corresponding to a length of 48mm is 50.0°C 20.0°C 41.7°C 30.0°C 50. When water is heated from 0°C to 100°C, the volume of water first increases, then decreases decreases gradually first decreases, then increases increases gradually 51. Which of the following statements are true about the spring balance and the chemical balance?I. a change in gravity changes the reading of a spring balance but not that of a chemical balance.II. both are used to measure the mass of an object.III. either of them may be used to measure the weight of an object.IV. the spring balance works on the principle of Hooke's law while the chemical balance works on the principle of moments. II and III only I and IV only none of the above III and IV only all of the above 52. If the tape of a ticker-timer shows dots equally spaced at 1cm apart and the vibrator makes 50 dots per second, what is the speed of the tape in m/s? 0.5 0.1 0.02 50 5.0 53. A stroboscope works by making moving or rotating objects appear in motion ripple stationary dipper 54. Which of the following sets consist entirely of scalar quantities? impulse, mass & magnetic flux momentum, velocity & density displacement, electric field & energy pressure, work & electric potential speed, momentum & distance 55. Which among the following order of decreasing wavelengths of electromagnetic waves is correct?I. Radio waves II. Infrared rays III. Visible Light IV. X-Rays II, I, IV, III IV, III, II, I I, II, III, IV I, III, II, IV 56. Calculate the gravitation force of attraction between two planets of 10^24 kg and 10^27 kg separated by a distance of 10^20 m. 8.6 N 6.67 N 7.5 N 6.56 N 57. If an object is placed at a height of 10 m above the ground at a stationary point. It possess what type of energy? Stationary energy Mechanical energy Potential energy Vibrational energy 58. The ice point and steam points on a thermometer corresponds to X and 80mm respectively. A temperature of 60°C corresponds to 52mm on the thermometer. The value of X is 10mm 4mm 8mm 20mm 59. The power source of a ticker-timer vibrates 40 times in one second. If the ticker-timer made 200 dots during an experiment, determine how long the experiment lasted 45s 25s 15s 10s 5s 60. The Gas law was given by Arrhenius Ostwald Faraday Boyle 1 out of 60 Time is Up! Time's up