Energy And Power MCQ
Test your knowledge with important Energy And Power MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Energy And Power MCQs on Bissoy. Bissoy App
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What is the mass of a unit volume of substance called?
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Which of the following can not be created nor be destroyed?
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If a stationary force applied to an object, the object moved in the direction of force, is expressed as a result of force and displacement, it is called_
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An object of mass 50 kg is moving at a fixed velocity of 6 ms<sup>-1</sup>. Calculate the momentum of the object.
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Energy conservation means
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Potential energy is equal to-
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An object has a potential energy of 400J with a mass of 20kg and a gravity of 10 m/s<sup>2</sup>, what is the height of that object?
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In which of the following situations is the work done by negative force?
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If a person pulls the trolley up to the distance of 10 m with the force of 50 N, what will be the work done by him?
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An example of pulling is-
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A 4.0 kg object is moving horizontally with a speed of 5.0 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:
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Which one among the following happens when a swing rises to a certain height from its rest positions?
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In wind power, which form of energy is converted into electrical energy?
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An object of 20kg mass is moving at speed of 10m/s. What is the kinetic energy obtained by the object?
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The product of mass and velocity is called:
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When an object of 12kg is at a height of 5m from the ground, then the energy contained in it will be? (g = 9.8ms<sup>-2</sup>)
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A bullet of mass 12 g is fired from a rifle. The bullet takes 0.006 second to move through its barrel and leaves it with a velocity of 300 m/s. What is the force exerted on the bullet by the rifle?
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Which of the following does not affect the value of acceleration due to gravity?
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Which physical quantity is represented by the ratio of momentum and velocity of the body?
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A 40 kg girl quickly climbs up the stairs to 5m height in 4 sec, what will be the power developed by her?
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What does the kinetic energy equal?
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A constant force acts on an object of mass 5 kg for a period of 2 seconds. This increases the velocity of the object from 4 ms<sup>-1</sup> to 7 ms<sup>-1</sup>. Find the amount of force used.
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If the work done is negative, then what will be the angle between the force and displacement?
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Capacity of doing work is known as-
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When a body falls freely under gravity then the work done by gravity is
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What is wrong statement about kinetic energy?
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A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum
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. . . . . . . . particles have a greater kinetic energy-
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A force of 125 N is acting on an object, that object is moved up to 5 m in the direction of the force, what will be the work done by the force.
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An 8 kg iron ball and an 3 kg aluminium ball are dropped from a height of 20 meters. Which of the following quantity amount will be same in them above 10 m height from the ground?