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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-1 section-2

Each section contains 100 MCQs on Work, Energy and Power .
1
The energy contained in an object is 1500J and its mass is 15kg. Find the height of the object above the ground.
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Answer & Solution
Answer: Option A
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2
The kinetic energy of an object is 120J and its mass is 15 kg Find the velocity of the object-
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Answer & Solution
Answer: Option B
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3
A boy of 50 kg mass climbs 44 stairs in 10 seconds. If the height of each stair is 15cm then find his power?
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Answer: Option D
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4
In a hydro power, what is the energy that is converted into electrical energy?
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Answer: Option D
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5
A 2 kg object is moving at an acceleration of 4 m/s2. The total force applied to it is-
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Answer & Solution
Answer: Option D
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6
In a system when there is a collision between two nonelastic bodies, it consists of:
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Answer & Solution
Answer: Option B
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7
An object with a mass of 80 kg is moving with a velocity of 60 ms-1. What will be the momentum generated in the object?
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Answer & Solution
Answer: Option B
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8
Which one of the following is not a form of stored energy?
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Answer & Solution
Answer: Option C
Solution:
The correct answer is Option C: Electrical energy

Here's why:

* Stored energy means energy that is held within an object or system and can be released later.

* Nuclear energy: This is energy stored within the nucleus of an atom. Think of nuclear power plants.

* Potential energy: This is energy an object has because of its position or condition. A stretched rubber band or a book on a high shelf has potential energy.

* Chemical energy: This is energy stored in the bonds of molecules. Think of the energy in food or gasoline.

* Electrical energy: While we use electricity to *transfer* energy, it is generally considered as a form of kinetic energy (the energy of moving electric charges), not a form of *stored* energy. It is the flow of electrons.

Therefore, electrical energy is not typically classified as stored energy in the same way as the other options.
9
If a bullet is fired from the gun, comes backwards, what will be the kinetic energy of the gun?
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Answer & Solution
Answer: Option D
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10
The speed of a body of mass 100 kg is increases 5 ms-1 to 15 ms-1 in 5 s and a uniform acceleration is imposed on it. Calculate the force exerted on the body.
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Answer: Option D
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