23/04/2020Senior Class WAEC/NECO/UTME Mock Exams(Physics) 0Comments by Gate Academy Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. The external parts of an object can be measured accurately through the use of which scientific instrument?Vernier caliperMeter ruleMicrometer screw guageNone of the above2. In which of the following devices is the expansion of a solid a disadvantage?I. Simple pendulum II. Fire alarms III. Thermostat IV. Bimetallic thermometerII and III onlyIII onlyII, III, and IV onlyI only3. Fire in the diesel engine is produced by which of the following?Self starterSpark plugFriction Compression4. Which metal is commonly used for making an electromagnet?Nickel Cobalt Copper Iron5. 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.all of the aboveIII and IV onlyII and III onlyI and IV onlynone of the above6. 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 cm³36.2 cm³25.7 cm³72.8 cm³7. A man walks 8km north and then 5km in a direction 60° east of north. Find the distance from his starting point.14.36km13.00km3.00km11.36km8. 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?0.020.50.15.0509. Which of the following readings cannot be determined with a meter rule?2.05cm2.56cm2.50cm2.55cm2.00cm10. One of the following readings represents the measurement of the length of a metal rod using vernier callipers.5.0cm5.16cm5.160cm5.165cm5cm11. Which of the following is a set of vectors?force, mass and momentacceleration, velocity and momentmass, weight and densitymass, volume and density12. 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 N7.5 N8.6 N6.67 N13. 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 is19.2m/s²9.6m/s²48.0m/s²24.0m/s²14. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focusedVertically upwards on the markingsVertically downwards on the markingsSlantingly towards the right on the markingsSlantingly towards the left on the markings15. Which of the following quantities has the same unit as the Watt?force x velocityforce x distanceforce x accelerationforce x time16. 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 is0°36.87°136.87°53.13°90°17. 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 onlyIII and IV onlyall of the aboveI, II, and IV onlyII and III only18. If a ball is moving at 18m/s in a direction inclined at 60° to the horizontal. The horizontal component of its velocity is9√3m/s6m/s18m/s9m/s6√3m/s19. The equilibrant of two or more concurrent forces is equalto the difference in magnitude of the forcesto the sum of the magnitude of the forcesin magnitude to the resultant but opposite in directionin magnitude and direction to the resultant20. The period of revolution round the sun is maximum by which among the following planets?EarthMercury MarsVenus21. 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 is10mm8mm20mm4mm22. 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 is41.7°C20.0°C50.0°C30.0°C23. 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 OnlyI, II & III OnlyI & II OnlyI, III & IV Only24. Which of the following is equivalent to Kgm/s?NmsN/sNsJ/s25. 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.60m/s108m/s52.57m/s72m/s84m/s26. The general gas law can be written asPV = constantV/T = constantP/T = constantPV/T = constant27. When water is heated from 0°C to 100°C, the volume of waterdecreases graduallyfirst increases, then decreasesincreases graduallyfirst decreases, then increases28. Electrons were discovered bySir Isaac NewtonJames Chadwick B.J. J. ThompsonCharles Newton29. The resultant of two forces acting on an object is maximum when the angle between them is45°180°0°270°90°30. Radio waves belong to the class of waves whose velocity is about3 × 10^8 m/s34 m/s3 × 10^-8 m/s3 × 10^6 m/s31. Who discovered X-Rays?RoentgenMadam CurieJ. J. ThomsonEinstein32. 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 is160km/h N30°W117km/h N31°W117km/h N65°W54km/h N60°E40km/h N31°E33. Which of the following can be used to measure accurately to three decimal places in centimeters?meter rulevernier callipermicrometer screw gaugenone of the aboveruler34. Kilowatt – hour is a unit ofpowercurrentenergyelectric charge35. A stroboscope works by making moving or rotating objects appeardipperstationaryin motionripple36. 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?230km/h130km/h200km/h100km/h30km/h37. 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?175N100N210N50N38. A ball is thrown vertically upwards from the ground with an initial velocity of 20m/s. The time spent in air by the ball is5s10s4s2s39. Find the acceleration of a body of mass 20kg under forces of 3N and 10N acting horizontally in opposite directions0.15m/s²0.50m/s²2.86m/s²0.35m/s²40. The dimensions of viscosity areM/L/T²M/LM/T²M/L/T41. Light from the laser is ________.CompositeDispersed light Monochromatic Incoherent42. What is the inductance (L) of an inductor whose reactance is 1Ω at 50/π Hertz (H)?0.01 H10 H1 H100 H43. An example of a scalar quantity isacceleration due to gravityelectric chargeweightvelocitymomentum44. 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)45°C0°C35°C60°C45. Which among the following is the best conductor of electricity?CopperLeadSilverGold46. 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 I, II, III, IVIV, III, II, III, I, IV, IIII, III, II, IV47. Which of the following physical quantities is NOT a vector?electric field intensityforcemagnetic inductionvelocitywork48. 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 energyPotential energyVibrational energyMechanical energy49. 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 is5J6J4J3J50. 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°C66.7°C84.6°C75.0°C51. A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain?60.6600.060.00652. In an elastic collision:I. Energy is conserved. II. Energy is decreased III. Energy is increased IV. Linear momentum is conservedIII onlyII and IV onlyI onlyII only53. The international agreed system of units (S.I) for physical measurements are?kg, cm, scm, g, skg, m, slb, ft, sg, m, s54. The direction of the path taken by light is calledlinesraylocusbeam55. Body floats in a fluid when it ________displaces its own density of the fluiddisplaces its own volume of the liquid (fluid)displaces its own weight of the fluidis no longer subjected to gravity56. Primary colors of light areCyan, magenta and yellowRed, blue and greenBlack, blue and greenNone of these colors57. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule?35.0mm35.00mm35mm35.01mm58. In order to remove the error of parallax when taking measurements with a meter rule, the eye should be focusedvertically upwards on the markingsvertically downwards on the markingsslantingly towards the left on the markingsslantingly towards the right on the markings59. Persistence of vision is the principle behind?SpectroscopeCameraCinemaPeriscope60. A single force which produces the same effect as a set of forces acting together at a point is known as theequilibriumequilibrantresistantresultantcomponent61 out of 60Time is Up!