UPSC Exam > UPSC Videos > Science & Technology for UPSC CSE > Fun Video: Work, Energy & Power
Fun Video: Work, Energy & Power Video Lecture | Science & Technology for UPSC CSE
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FAQs on Fun Video: Work, Energy & Power Video Lecture - Science & Technology for UPSC CSE
| 1. What is work in the context of physics? |  |
Ans. Work in physics is defined as the transfer of energy that occurs when a force is applied to an object and the object is displaced in the direction of the force. It is calculated by multiplying the force applied to the object by the distance over which the force is applied.
| 2. How is energy related to work? | |
Ans. Energy and work are closely related in physics. Work is the transfer of energy, and energy is the ability to do work. When work is done on an object, its energy changes. Likewise, when an object does work on another object, it transfers energy to that object.
| 3. What is the difference between potential energy and kinetic energy? | |
Ans. Potential energy and kinetic energy are two forms of energy. Potential energy is the energy possessed by an object due to its position or condition, such as gravitational potential energy or elastic potential energy. Kinetic energy, on the other hand, is the energy possessed by an object due to its motion. It depends on the mass and velocity of the object.
| 4. How is power defined in physics? | |
Ans. Power is 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 taken to do the work or transfer the energy. The unit of power is the watt (W), which is equal to one joule per second.
| 5. What are some real-life examples of work, energy, and power? | |
Ans. There are numerous examples of work, energy, and power in daily life. Some examples include lifting a heavy object (work), a moving car (kinetic energy), a stretched rubber band (elastic potential energy), a person climbing stairs (potential energy), and a light bulb producing light (power). These concepts are fundamental to understanding the physical world around us.
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Nov 24, 2024 Last updated |
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