Please, fill out the information below to continue. NAME EMAIL PHONE NUMBER 1. Which of the following sets consist entirely of scalar quantities? pressure, work & electric potential momentum, velocity & density speed, momentum & distance impulse, mass & magnetic flux displacement, electric field & energy2. 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 Only I & III Only I, III & IV Only I, II & III 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 is 4J 3J 6J 5J4. 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 slantingly towards the right on the markings vertically downwards on the markings5. 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 10s 5s 4s 2s6. Which metal is commonly used for making an electromagnet? Iron Cobalt Copper Nickel 7. The physical quantity that has the same dimensions as impulse is? torque momentum energy surface tension pressure8. 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 25.7 cm³ 72.8 cm³9. A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point Q. What is the total displacement? 4km north 14km east 24km north 24km south 6km west10. 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 is11. Body floats in a fluid when it ________ displaces its own density of the fluid displaces its own weight of the fluid is no longer subjected to gravity displaces its own volume of the liquid (fluid)12. The velocity v of a particle in time t is given by the equation V = 10 + 2t². Find the instantaneous acceleration after 5 seconds. 60m/s² 15m/s² 5m/s² 10m/s² 20m/s²13. 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% 60% 50% 2%14. 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 136.87° 36.87° 90° 0° 53.13°15. Electrons were discovered by Charles Newton James Chadwick B. Sir Isaac Newton J. J. Thompson16. In an elastic collision:I. Energy is conserved. II. Energy is decreased III. Energy is increased IV. Linear momentum is conserved II and IV only I only III only II only17. Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? 35.0mm 35mm 35.00mm 35.01mm18. Which of the following quantities are scalar? I. electric potentialII. momentumIII. kinetic energyIV. torque II, III & IV only all of the above I & III only none of the above II & III only19. 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? 0.5mm 0.1mm 0.001mm 0.005mm 0.05mm20. Which of the following is a vector quantity? time current altitude current density mass21. An example of a scalar quantity is velocity momentum acceleration due to gravity electric charge weight22. 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? 175N 100N 210N 50N23. If a ball is moving at 18m/s in a direction inclined at 60° to the horizontal. The horizontal component of its velocity is 6√3m/s 9√3m/s 6m/s 18m/s 9m/s24. Which of the following instruments has a reading accuracy of 0.5mm? spring balance meter rule micrometer screw gauge protractor vernier callipers25. 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 south 20m/s west of south 15m/s north 25m/s east of north 25m/s west of north26. The equilibrant of two or more concurrent forces is equal in magnitude to the resultant but opposite in direction to the difference in magnitude of the forces in magnitude and direction to the resultant to the sum of the magnitude of the forces27. 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 8mm 20mm 4mm28. The heating element of an electric heater is made of ____ None of these Aluminum Nichrome Copper29. 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) 35°C 60°C 0°C 45°C30. 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? 50 0.02 0.5 0.1 5.031. 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 48.0m/s² 9.6m/s² 19.2m/s² 24.0m/s²32. Which of the following quantities has the same unit as the Watt? force x velocity force x acceleration force x distance force x time33. A man walks 8km north and then 5km in a direction 60° east of north. Find the distance from his starting point. 3.00km 13.00km 11.36km 14.36km34. The dimensions of surface tension are M/L/T M/L/T² MT² M/T²35. Ampere-hour is the unit of which among the following? Intensity of current Power Amount of charge Energy36. Which is the least possible error in using a rule graduated in cm? 3.5cm 0.5cm 0.2cm 2.0cm 1.0cm37. What is the relationship between mechanical advantage (MA), velocity ratio (VR) and efficiency in percentage? MA = E × VR E = MA/VR × 100% MA = 1/E × 100% VR = 1/(sinθ×MA)38. The external parts of an object can be measured accurately through the use of which scientific instrument? Vernier caliper Meter rule Micrometer screw guage None of the above39. A vector quantity can only be completely described when ________ and _______ are mentioned. distance and specified displacement magnitude and direction magnitude and motion moment and momentum40. Which among the following is the best conductor of electricity? Copper Lead Gold Silver41. Light from the laser is ________. Monochromatic Incoherent Composite Dispersed light 42. Primary colors of light are Black, blue and green Cyan, magenta and yellow Red, blue and green None of these colors43. The period of revolution round the sun is maximum by which among the following planets? Mercury Venus Mars Earth44. A single force which produces the same effect as a set of forces acting together at a point is known as the resultant equilibrant resistant component equilibrium45. 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°C46. Radio waves belong to the class of waves whose velocity is about 3 × 10^-8 m/s 3 × 10^8 m/s 3 × 10^6 m/s 34 m/s47. Which of the following pairs of physical quantities comprises vectors? electric field potential & electric field intensity energy & power force ratio & velocity ratio capacitance & inductance friction & momentum48. Which of the following is not a luminous object? A lit candle A star The moon The sun49. Which of the following physical quantities is NOT a vector? work magnetic induction velocity force electric field intensity50. A stroboscope works by making moving or rotating objects appear ripple in motion stationary dipper51. 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. 2.00m/s² 0.67m/s² 0.83m/s² 1.50m/s²52. 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 III only II and III only53. The direction of the path taken by light is called beam ray lines locus54. Which of the following is equivalent to Kgm/s? N/s Nms Ns J/s55. 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 944N/C 150N/C 18N/C56. The dimensions of viscosity are M/L M/L/T M/L/T² M/T²57. The ozone layer protects us from infrared radiation radio waves ultra violet rays visual radiation58. A piece of rubber 10cm long stretches 6mm when a load of 100N is hung from it. What is the strain? 60 6 0.006 0.06 0.659. 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 parallel a low resistance wire in series60. If an object is placed at a height of 10 m above the ground at a stationary point. It possess what type of energy? Mechanical energy Stationary energy Vibrational energy Potential energy61 out of 60Time is Up!