Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. 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 2s 4s 5s 10s 2. When water is heated from 0°C to 100°C, the volume of water decreases gradually first increases, then decreases increases gradually first decreases, then increases 3. Electrons were discovered by Charles Newton J. J. Thompson James Chadwick B. Sir Isaac Newton 4. A single force which produces the same effect as a set of forces acting together at a point is known as the equilibrium equilibrant resultant component resistant 5. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35.0mm 35.01mm 35.00mm 35mm 6. A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain? 0.006 60 0.6 6 0.06 7. A stroboscope works by making moving or rotating objects appear dipper stationary ripple in motion 8. The equilibrant of two or more concurrent forces is equal to the sum of the magnitude of the forces in magnitude to the resultant but opposite in direction to the difference in magnitude of the forces in magnitude and direction to the resultant 9. The period of revolution round the sun is maximum by which among the following planets? Earth Venus Mercury Mars 10. An Eagle flying due north with a velocity of 15m/s sheds a feather in an air current blowing at 20m/s due east. The feather will move with a velocity of 25m/s east of north 25m/s east of south 20m/s west of south 25m/s west of north 15m/s north 11. Two points on a velocity time graph have co-ordinates (5s, 10m/s) and (20s, 20m/s). Calculate the mean acceleration between the two points. 1.50m/s² 0.83m/s² 0.67m/s² 2.00m/s² 12. Which of the following can be used to measure accurately to three decimal places in centimeters? meter rule micrometer screw gauge none of the above ruler vernier calliper 13. The physical quantity that has the same dimensions as impulse is? torque pressure momentum surface tension energy 14. The heating element of an electric heater is made of ____ None of these Nichrome Copper Aluminum 15. The resultant force of a couple is half zero infinity one 16. Which of the following instruments has a reading accuracy of 0.5mm? micrometer screw gauge vernier callipers meter rule spring balance protractor 17. Which of the following sets consist entirely of scalar quantities? speed, momentum & distance impulse, mass & magnetic flux momentum, velocity & density pressure, work & electric potential displacement, electric field & energy 18. 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% 2% 40% 50% 19. The Gas law was given by Boyle Arrhenius Ostwald Faraday 20. A body accelerates uniformly from rest at 6m/s² for 8 seconds and then decelerates uniformly to rest in the next 5 seconds. The magnitude of the deceleration is 24.0m/s² 19.2m/s² 9.6m/s² 48.0m/s² 21. Two cars moving in the same direction have speeds of 100km/h and 130km/h. What is the velocity of the faster car as measured by an observer in a slower car? 130km/h 230km/h 100km/h 30km/h 200km/h 22. Which among the following is the best conductor of electricity? Gold Lead Silver Copper 23. Boyle's law may be written as P1V1/T1 = P1V1/T2 P1T1 = P2T2 V1 = V2/T1T2 P1VI = P2V2 24. A vector quantity can only be completely described when ________ and _______ are mentioned. magnitude and direction distance and specified displacement moment and momentum magnitude and motion 25. Which of the following is equivalent to Kgm/s? Nms Ns J/s N/s 26. Find the acceleration of a body of mass 20kg under forces of 3N and 10N acting horizontally in opposite directions 2.86m/s² 0.15m/s² 0.50m/s² 0.35m/s² 27. Which of the following quantities has the same unit as the Watt? force x velocity force x time force x acceleration force x distance 28. Persistence of vision is the principle behind? Spectroscope Cinema Camera Periscope 29. Who discovered X-Rays? Einstein Roentgen Madam Curie J. J. Thomson 30. The direction of the path taken by light is called ray lines beam locus 31. Which of the following is not a luminous object? A lit candle The sun A star The moon 32. Which of the following is a fundamental unit? Joules Newton Ampere Watts 33. 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 I, II, III, IV I, III, II, IV IV, III, II, I 34. Which of the following pairs of physical quantities comprises vectors? energy & power friction & momentum electric field potential & electric field intensity capacitance & inductance force ratio & velocity ratio 35. 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 41.7°C 30.0°C 20.0°C 36. Kilowatt – hour is a unit of electric charge power energy current 37. 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 84.6°C 66.7°C 75.0°C 38. If an object is placed at a height of 10 m above the ground at a stationary point. It possess what type of energy? Vibrational energy Stationary energy Mechanical energy Potential energy 39. 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 III only I only II, III, and IV only II and III only 40. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused slantingly towards the right on the markings slantingly towards the left on the markings vertically downwards on the markings vertically upwards on the markings 41. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focused Vertically upwards on the markings Slantingly towards the left on the markings Vertically downwards on the markings Slantingly towards the right on the markings 42. Primary colors of light are None of these colors Cyan, magenta and yellow Red, blue and green Black, blue and green 43. In an elastic collision:I. Energy is conserved. II. Energy is decreased III. Energy is increased IV. Linear momentum is conserved III only II only II and IV only I only 44. The dimensions of surface tension are M/T² MT² M/L/T M/L/T² 45. The external parts of an object can be measured accurately through the use of which scientific instrument? None of the above Vernier caliper Meter rule Micrometer screw guage 46. A tugboat is travelling from Lagos to Morocco across the river Nile with a resultant velocity of 20 knots. If the river flows at 12 knots, the direction of motion of the boat relative to the direction of water flow is 53.13° 0° 36.87° 90° 136.87° 47. 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.? 36.2 cm³ 72.8 cm³ 24.3 cm³ 25.7 cm³ 48. 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 150N/C 18N/C 864N/C 944N/C 49. 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? 5.0 0.5 50 0.02 0.1 50. The international agreed system of units (S.I) for physical measurements are? kg, m, s lb, ft, s cm, g, s g, m, s kg, cm, s 51. 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 20mm 4mm 8mm 52. A man walks 8km north and then 5km in a direction 60° east of north. Find the distance from his starting point. 11.36km 13.00km 3.00km 14.36km 53. A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point Q. What is the total displacement? 24km north 14km east 6km west 4km north 24km south 54. Which of the following is a set of vectors? mass, volume and density acceleration, velocity and moment force, mass and moment mass, weight and density 55. 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 56. With an increase in pressure the melting point of water will increase first increase and then decrease decrease remain unaffected 57. 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? 72.8 cm³ 36.2 cm³ 25.7 cm³ 24.3 cm³ 58. Galvanometer can be converted into a voltmeter by using a low resistance wire in parallel a low resistance wire in series a high resistance wire in parallel a high resistance wire in series 59. Which of the following readings cannot be determined with a meter rule? 2.55cm 2.00cm 2.50cm 2.56cm 2.05cm 60. 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 4J 3J 6J 5J 1 out of 60 Time is Up! Time's up