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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-7 section-3

Each section contains 100 MCQs on Work, Energy and Power .
61
A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is:
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Answer & Solution
Answer: Option A
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62
The momentum of a moving object depends on some factors. Which of the following statements is most appropriate?
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Answer & Solution
Answer: Option B
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63
Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10s. If the height of each step is 15 cm, then what is his power?
(Take g = 10m/s2)
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Answer & Solution
Answer: Option A
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64
The work done by the force is positive when-
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Answer & Solution
Answer: Option A
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65
If the momentum of an object is tripled, its kinetic energy-
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Answer & Solution
Answer: Option C
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66
All forces have:
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Answer & Solution
Answer: Option A
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67
What will be the average power required to lift an object of 80 kg to a height of 40 m in 50s? (g=10m/s2)
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Answer & Solution
Answer: Option B
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68
Consider the following statements.
A 4-wheel vehicle moving in a sharp circular path at high speed will
1. Overturn about its outer wheels
2. Overturn about its inner wheels
3. Skid outwards
4. Skid inwards
Which of these statements are correct?
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Answer & Solution
Answer: Option C
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69
What is the SI unit of energy?
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Answer: Option A
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70
Which of the following devices converts chemical energy into electrical energy?
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Answer & Solution
Answer: Option D
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