Uncategorized Physics 2014 (Jamb) Posted on November 29, 2018December 3, 2018 Author goldensom Comment(0) 1. A quantity which requires magnitude and direction to be specified is temperature distance displacement mass 2. Which type of motion do the wheels of a moving car undergo? Random and translational motion Translational and rotational motion Vibratory and translational motion Rotational and oscillatory motion 3. A wheel and axle is used to raise a load whose weight is 800N when an effort of 250N is applied. If the radii of the wheel and axle are 800mm and 200mm respectively, the efficiency of the machine is 87% 90% 80% 85% 4. The small droplets of water that form on the grass in the early hours of the morning is haul fog mist dew 5. A force of 500N is applied to a steel wire of cross sectional area 0.2m^{2}, the tensile stress is 2.5 x 103Nm-2 1.0 x 103Nm-2 2.5 x 104Nm-2 1.0 x 102Nm-2 6. A machine whose efficiency is 75% is used to lift a load of 100N. Calculate the effort put into the machine if it has a velocity ratio of 4 334.33N 233.33N 343.32N 333.33N 7. A glass bottle of initial volume 2 x 10^{4}cm^{3} is heated from 20^{o}C to 50^{o}C. If the linear expansivity of glass is 9 x10^{-6}K^{-1}, the volume of the bottle at 50^{o}C is 20016.2cm^{3} 20013.5cm^{3} 20008.1cm^{3} 20005.4cm^{3} 8. One of the conditions necessary for an object to be in equilibrium when acted upon by a number parallel forces is that the vector sum of the forces is positive zero negative average 9. The energy in the nucleus of atoms produce heat which can be used to generate Potential energy Electrical energy Mechanical energy Kinetic energy 10. From the diagram below, the point that represents the elastic limit is N S T Q R 11. A car accelerates uniformly from rest at 3ms^{-2}, its velocity after traveling a distance of 24m is 72m/s 144m/s 12m/s 36m/s 12. An object of mass 20kg is released from a height of 10m above the ground level. The Kinetic energy of the object just before it hits the ground is 500J 200J 4,000J 2,000J 13. Calculate the escape velocity of a satelite launched from earth’s surface if the radius of the earth is 6.4 x 10^{6}m. [g = 10ms^{-2}] 25.3km/s 4.0km/s 11.3km/s 4.2km/s 14. Question Paper Type: L Which Question Paper Type of Physics is given to you? Type E Type S Type F Type L 15. From the diagram below, the region of zero acceleration is PQ NS SP MN 16. What is the equivalent of 20k in Celsius scale? 68oC 20oC 36oC -253oC 17. What is the least possible error encountered when taking measurement with a meter rule? 1.0mm 0.1mm 0.2mm 0.5mm 18. An object of weight 80N on earth is taken to a planet where the acceleration due to gravity is one third of its value on earth. The weight of the object on the planet is? [g = 10ms^{-2}] 27N 36N 12N 48N 19. What happens when three coplanar non-parallel forces are in equilibrium? They are represented in magnitude only They are represented in direction only Their lines of action meet at a point Their lines of action are parallel 20. I. Electrical potential II. Torque III. Kinetic energy IV. Momentum Which of the quantities listed above are vectors? II and III I and III II and IV I and II Loading … Question 1 of 20