23/04/2020 Senior Class WAEC/NECO/UTME Mock Exams(Physics) 0Comments by Gate Academy Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. Which of the following physical quantities is NOT a vector?electric field intensityvelocityworkforcemagnetic induction2. 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 & II OnlyI, II & III OnlyI & III OnlyI, III & IV Only3. 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 is3J5J6J4J4. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focusedslantingly towards the right on the markingsslantingly towards the left on the markingsvertically upwards on the markingsvertically downwards on the markings5. One of the following readings represents the measurement of the length of a metal rod using vernier callipers.5cm5.16cm5.160cm5.165cm5.0cm6. An example of a scalar quantity isacceleration due to gravityelectric chargemomentumweightvelocity7. When water is heated from 0°C to 100°C, the volume of waterdecreases graduallyfirst increases, then decreasesfirst decreases, then increasesincreases gradually8. The ozone layer protects us fromultra violet raysradio wavesinfrared radiationvisual radiation9. Which of the following instruments has a reading accuracy of 0.5mm?protractorspring balancevernier callipersmicrometer screw gaugemeter rule10. Kilowatt – hour is a unit ofpowerelectric chargeenergycurrent11. With an increase in pressure the melting point of water willremain unaffectedincreasedecrease first increase and then decrease12. What will be the maximum temperature if 100 gm ice at 0°C is put in 100 gm water at 80°C? (Latent heat of ice = 80 cal / gm)60°C45°C35°C0°C13. A ball is thrown vertically upwards from the ground with an initial velocity of 20m/s. The time spent in air by the ball is5s2s10s4s14. Ampere-hour is the unit of which among the following?Intensity of currentAmount of chargeEnergyPower 15. The equilibrant of two or more concurrent forces is equalto the sum of the magnitude of the forcesin magnitude to the resultant but opposite in directionin magnitude and direction to the resultantto the difference in magnitude of the forces16. Which of the following is equivalent to Kgm/s?N/sNsJ/sNms17. In which of the following devices is the expansion of a solid a disadvantage?I. Simple pendulum II. Fire alarms III. Thermostat IV. Bimetallic thermometerIII onlyI onlyII, III, and IV onlyII and III only18. What is the inductance (L) of an inductor whose reactance is 1Ω at 50/π Hertz (H)?1 H10 H0.01 H100 H19. Who discovered X-Rays?Madam CurieJ. J. ThomsonEinsteinRoentgen20. Which of the following sets consist entirely of scalar quantities?impulse, mass & magnetic fluxspeed, momentum & distancepressure, work & electric potentialdisplacement, electric field & energymomentum, velocity & density21. 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?0.10.50.02505.022. Electrons were discovered bySir Isaac NewtonJames Chadwick B.Charles NewtonJ. J. Thompson23. Which is the least possible error in using a rule graduated in cm?1.0cm2.0cm3.5cm0.2cm0.5cm24. A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point Q. What is the total displacement?4km north14km east6km west24km north24km south25. 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 is136.87°36.87°90°53.13°0°26. Radio waves belong to the class of waves whose velocity is about3 × 10^6 m/s3 × 10^8 m/s34 m/s3 × 10^-8 m/s27. An aircraft attempts to fly due north at 100km/h. If the wind blows against it from east to west at 60km/h, its resultant velocity is117km/h N31°W40km/h N31°E117km/h N65°W160km/h N30°W54km/h N60°E28. Fire in the diesel engine is produced by which of the following?Spark plugFriction Self starterCompression29. 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.6.56 N8.6 N6.67 N7.5 N30. 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.0.83m/s²1.50m/s²2.00m/s²0.67m/s²31. The direction of the path taken by light is calledlocusbeamlinesray32. The heating element of an electric heater is made of ____AluminumCopperNone of theseNichrome33. 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 is150N/C18N/C864N/C944N/C34. At what temperature are the temperatures on the Celsius and Fahrenheit scales equal? - 273° Celsius40° Celsius- 40° Celsius273° Celsius35. If a ball is moving at 18m/s in a direction inclined at 60° to the horizontal. The horizontal component of its velocity is9m/s18m/s6√3m/s9√3m/s6m/s36. Galvanometer can be converted into a voltmeter by usinga low resistance wire in parallela low resistance wire in seriesa high resistance wire in parallela high resistance wire in series37. 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 lasted10s5s45s25s15s38. 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?40%2%60%50%39. 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 onlyI and IV onlynone of the aboveIII and IV onlyall of the above40. Which among the following are primary colors?Red, Green, BlueYellow, Violet, BlueRed, Magenta, YellowBlue, Yellow, Green41. I. diameter of a small ball bearing.II. thickness of a piece of paper.III. diameter of a measuring cylinder.IV. length of a piece of wire.Which of the above can be measured using a micrometer screw gauge?I and II onlyI, II, and IV onlyIII and IV onlyall of the aboveII and III only42. The magnitude of the resultant of mutually perpendicular forces, F1 and F2 is 13N. If the magnitude of F1 is 5N, what is the magnitude of F2?12N18N65N8N2.6N43. The resultant force of a couple iszeroinfinityhalfone44. The Gas law was given byFaradayArrheniusBoyleOstwald45. Which of the following is a set of vectors?acceleration, velocity and momentforce, mass and momentmass, volume and densitymass, weight and density46. What is the relationship between mechanical advantage (MA), velocity ratio (VR) and efficiency in percentage?VR = 1/(sinθ×MA)E = MA/VR × 100%MA = 1/E × 100%MA = E × VR47. Which of the following readings cannot be determined with a meter rule?2.05cm2.50cm2.55cm2.56cm2.00cm48. The international agreed system of units (S.I) for physical measurements are?g, m, skg, m, scm, g, slb, ft, skg, cm, s49. The period of revolution round the sun is maximum by which among the following planets?EarthMercury VenusMars50. 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 is63.6°C84.6°C66.7°C75.0°C51. If an object is placed at a height of 10 m above the ground at a stationary point. It possess what type of energy?Potential energyMechanical energyStationary energyVibrational energy52. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focusedVertically downwards on the markingsSlantingly towards the right on the markingsSlantingly towards the left on the markingsVertically upwards on the markings53. Light from the laser is ________.CompositeIncoherentMonochromatic Dispersed light 54. The distance X, metres travelled by a particle in time, t seconds is described by the equation X = 10 + 12t².Find the average speed of the particle between the time interval, t = 2s and t = 5s.52.57m/s108m/s72m/s84m/s60m/s55. The general gas law can be written asP/T = constantPV/T = constantV/T = constantPV = constant56. 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 of25m/s east of north20m/s west of south15m/s north25m/s west of north25m/s east of south57. At what temperature will the density of water be maximum?- 4° C4° C0° C32° C58. The physical quantity that has the same dimensions as impulse is?momentumtorquesurface tensionenergypressure59. Which among the following is the best conductor of electricity?GoldLeadSilverCopper60. A vector of magnitude 5 units in the north direction is combined with another vector to give zero resultant. The other vector is5 units in the east direction10 units in the north direction5 units in the west direction10 units in the south direction5 units in the south direction61 out of 60Time is Up!