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Work, Power, Energy -General Science, Exam Preparation Video Lecture | IBPS PO Prelims & Mains Preparation - Bank Exams

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FAQs on Work, Power, Energy -General Science, Exam Preparation Video Lecture - IBPS PO Prelims & Mains Preparation - Bank Exams

1. What is work in the context of general science?
Ans. In general science, 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 direction of that force. Work can be calculated by multiplying the force applied to an object by the distance over which the force is applied.
2. What is power and how is it related to work and energy?
Ans. Power is the rate at which work is done or energy is transferred. It is the amount of work done per unit of time. Power can be calculated by dividing the amount of work done by the time taken to do the work. It is directly related to work and energy as the more work done in a given time, the higher the power.
3. What is the difference between work and energy?
Ans. Work and energy are related concepts but have different meanings. Work is the transfer of energy that occurs when a force is applied to an object and the object is displaced. It is a scalar quantity and is measured in joules (J). On the other hand, energy is the ability to do work. It can exist in many forms such as kinetic energy, potential energy, thermal energy, etc. Energy is a scalar quantity and is also measured in joules (J).
4. What are the different forms of energy?
Ans. There are several different forms of energy, including: - Kinetic energy: the energy possessed by an object due to its motion. - Potential energy: the energy possessed by an object due to its position or condition. - Thermal energy: the energy associated with the internal motion of atoms and molecules. - Chemical energy: the energy stored in chemical bonds. - Electrical energy: the energy associated with the flow of electric charge. - Nuclear energy: the energy stored in the nucleus of an atom.
5. How does the concept of work, power, and energy apply to everyday life?
Ans. The concepts of work, power, and energy are applicable to various aspects of everyday life. For example: - When we use a computer, electrical energy is converted into light energy (display) and sound energy (speakers), and our work is done by the computer. - When we use a vehicle, the chemical energy in the fuel is converted into kinetic energy to move the vehicle, and the power of the engine determines how quickly the work is done. - When we cook food, thermal energy is used to heat the food, and the work is done to cook the food. - When we turn on a light bulb, electrical energy is converted into light energy, and the power of the bulb determines the brightness of the light. These examples demonstrate how the concepts of work, power, and energy are present and relevant in our daily lives.
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