PhysicsWork And Energy Quiz July 19, 2022July 21, 2022 - by hafsaaftab5096 2 Created on July 19, 2022 By hafsaaftab5096 Work And Energy Quiz 1 / 21 Work done will be maximum if the angle between the force F and displacement d is 90° 180° 0° 2 / 21 A field in which the work is done in a moving a body along a closed path is zero is called Electric field Conservative field Electromagnetic field 3 / 21 When a force is parallel to the direction of motion of the body, then work done on the body is Zero Infinity Maximum 4 / 21 When a force is parallel to the direction of motion of the body, then work done on the body is Zero Minimum Maximum 5 / 21 Which of the following types of force can do no work on the particle on which it acts? Frictional force Gravitational force Centripetal force 6 / 21 If a body a mass of 2 kg is raised vertically through 2m, then the work done will be 38.2 J 39.2 J 392.1 J 7 / 21 An elevator weighing 3.5 x 10-6 N is raised to a height of 1000 m in the absence of friction, the work done is 3.5 x 103 J 3.5 x 104 J 3.5 x 109 J 8 / 21 The average power and instantaneous power become equal if work is done at Any rate At variable rate At a uniform rate 9 / 21 The relation between horsepower and watt is 1 hp = 546 watts 1 hp = 746 watts 1 hp = 946 watts 10 / 21 Proton-electron neutron and particles have the same momentum. Which of them have highest K.E? Proton Electron Neutron 11 / 21 The slope of the work time graph is equal to Power Displacement Energy 12 / 21 Work done by a variable force is determined by dividing Force into a small interval Displacement into a small interval Both force and displacement into small intervals 13 / 21 Work done on the body equals the Change in its K.E always Change in its P.E always Change in its K.E and change in its P.E 14 / 21 The escape velocity of a body in the gravitational field of the earth is independent of The angle at which it is thrown The gravitational field of earth Both its mass and the angle at which it is thrown 15 / 21 The tides raise the mater in the see roughly in a day Once Twice Eight times 16 / 21 The source of geothermal energy is The decay of radioactive elements in the earth Compression of material in the earth all 17 / 21 The highest value of escape velocity in the solar system is a planet Earth Moon Jupiter 18 / 21 Work done by the force of friction is Always negative Positive only for small frictional force Positive only for large frictional force 19 / 21 Gravitational P.E of a body has No general formula A formula mgh only both 20 / 21 If the velocity is doubled then Momentum increases 2 times and K.E increases 4 time Momentum increases 2 times and K.E increases constant Momentum increases 4 times and K.E increases 2 times 21 / 21 When the speed of a moving body is doubled then Its K.E is doubled Its momentum is doubled Its P.E is doubled Your score is The average score is 78% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Work And Energy Quiz Check out for more quizzes for mdcat 2022 preperation. Start studying now!
