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Work, Energy and Power MCQ question and answer with solution | Physics Gk MCQs

Learn Work, Energy and Power MCQ Questions and answers with easy and logical explanations in Physics Gk . Work, Energy and Power MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-9 section-4

Each section contains 100 MCQs on Work, Energy and Power .
81
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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Answer & Solution
Answer: Option A
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82
Which physical quantity is represented by the ratio of momentum and velocity of the body?
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Answer & Solution
Answer: Option C
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83
Which of the following does not affect the value of acceleration due to gravity?
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Answer & Solution
Answer: Option A
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84
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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Answer & Solution
Answer: Option D
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85
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-2)
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Answer & Solution
Answer: Option D
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86
The product of mass and velocity is called:
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Answer: Option B
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87
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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Answer: Option B
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88
In wind power, which form of energy is converted into electrical energy?
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Answer & Solution
Answer: Option A
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89
Which one among the following happens when a swing rises to a certain height from its rest positions?
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Answer & Solution
Answer: Option B
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90
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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Answer & Solution
Answer: Option A
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