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Conservation of Energy Video Lecture | Crash Course for PAT
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FAQs on Conservation of Energy Video Lecture - Crash Course for PAT
| 1. What is the law of conservation of energy? |  |
Ans. The law of conservation of energy states that energy cannot be created or destroyed, but it can be transformed from one form to another or transferred between objects or systems. This means that the total amount of energy in a closed system remains constant.
| 2. How is the conservation of energy applied in everyday life? | |
Ans. The conservation of energy is applied in various ways in everyday life. For example, when we turn on a light bulb, electrical energy is converted into light and heat energy. Similarly, when we ride a bicycle, the chemical energy from our body is converted into mechanical energy to move the bicycle. These are just a few examples of how energy is conserved and transformed in our daily activities.
| 3. Can energy be completely lost or disappear? | |
Ans. According to the law of conservation of energy, energy cannot be completely lost or disappear. It can only be transformed from one form to another. For example, when a ball is dropped from a height, its potential energy is converted into kinetic energy as it falls. Even though the ball eventually comes to a stop, the energy is not lost but rather transformed into other forms such as heat and sound energy.
| 4. How does the conservation of energy relate to renewable energy sources? | |
Ans. The conservation of energy is closely related to renewable energy sources. Renewable energy sources such as solar, wind, and hydroelectric power harness natural resources to generate energy. By utilizing these sources, we can reduce our dependency on non-renewable energy sources like fossil fuels, which are not only finite but also have negative environmental impacts. The conservation of energy emphasizes the importance of using energy resources efficiently and sustainably.
| 5. What are some examples of energy transformations? | |
Ans. Energy transformations occur in various forms in our daily lives. Some examples include:
- When a car engine burns fuel, chemical energy is transformed into mechanical energy to move the vehicle.
- When a person eats food, the chemical energy in the food is transformed into kinetic energy for bodily movements.
- When a solar panel absorbs sunlight, light energy is transformed into electrical energy.
- When a wind turbine catches wind, kinetic energy from the wind is transformed into electrical energy.
These are just a few examples of the countless energy transformations happening around us.
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Dec 27, 2024 Last updated |
Video Description: Conservation of Energy for PAT 2024 is part of Crash Course for PAT preparation.
The notes and questions for Conservation of Energy have been prepared according to the PAT exam syllabus.
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