Civil Engineering (CE) Exam > Civil Engineering (CE) Videos > Engineering Mechanics > Work, Energy & Power
Work, Energy & Power Video Lecture | Engineering Mechanics - Civil Engineering (CE)
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24 videos|59 docs|53 tests
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FAQs on Work, Energy & Power Video Lecture - Engineering Mechanics - Civil Engineering (CE)
| 1. What is work in the context of physics? |  |
Ans. In physics, work is defined as the transfer of energy that occurs when a force is applied to an object and the object is displaced in the same direction as the force. It is calculated by multiplying the force applied to an object by the distance over which the object is moved.
| 2. How is energy related to work? | |
Ans. Energy and work are closely related concepts. Work is the transfer of energy, and energy is the ability to do work. When work is done on an object, it gains or loses energy depending on the direction of the work. In other words, work is a measure of the change in energy of an object.
| 3. What are the different forms of energy? | |
Ans. There are several forms of energy. Some common examples include:
- Kinetic energy: the energy of motion.
- Potential energy: the energy an object possesses due to its position or condition.
- Thermal energy: the energy associated with the motion of particles within a substance.
- Chemical energy: the energy stored in the bonds between atoms in a substance.
- Electrical energy: the energy associated with the flow of electric charge.
- Nuclear energy: the energy stored in the nucleus of an atom.
| 4. How is power defined and calculated? | |
Ans. Power is defined as the rate at which work is done or energy is transferred. It is calculated by dividing the amount of work done or energy transferred by the time it takes to do the work or transfer the energy. The SI unit of power is the watt (W), which is equal to one joule per second.
| 5. What is the principle of conservation of energy? | |
Ans. The principle of conservation of energy states that energy cannot be created or destroyed, but it can only be transferred or transformed from one form to another. In other words, the total amount of energy in a closed system remains constant over time. This principle is based on the law of conservation of energy, which is a fundamental principle in physics.
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Dec 22, 2024 Last updated |
Video Description: Work, Energy & Power for Civil Engineering (CE) 2024 is part of Engineering Mechanics preparation.
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