- #1
seonjunyoo
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If the energy itself ignores loss resistance friction and the energy moves forward, can infinity go far at a constant speed?
I have a question about energy & ignoring friction losses
In summary, the question addresses the concept of energy in systems while disregarding friction losses, focusing on how energy is conserved and transformed in ideal conditions without the complications introduced by friction.
- #2
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seonjunyoo said:
- #3
Baluncore
Science Advisor
2023 Award
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If a mass is moving forwards with kinetic energy, and assuming there is no loss of energy to friction, then it will go on until the end of time, or until it hits something.seonjunyoo said:
- #4
sophiecentaur
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Try putting your question in another way. You have managed to confused us totally so far about what you actually want to know.seonjunyoo said:
- #5
Drakkith
Mentor
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Energy is not a physical thing. It's a property of other things. A block or a particle can move forward, and it can have energy, but not 'the energy itself'.seonjunyoo said:
If we assume a block of some sort is sliding across an infinite plane with zero resistance of any type and without any other force applied, then yes, it will continue to slide forever at a constant speed. Does that answer your question?seonjunyoo said:
- #6
gmax137
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Is this what you're after?seonjunyoo said:
Newton's First Law of Motion said:
FAQ: I have a question about energy & ignoring friction losses
1. What is energy in the context of physics?
Energy in physics is the capacity to do work or produce change. It exists in various forms, such as kinetic energy (energy of motion), potential energy (stored energy based on position), thermal energy, and others. Energy can be converted from one form to another but cannot be created or destroyed, according to the law of conservation of energy.
2. Why do we ignore friction losses when calculating energy?
Friction losses are often ignored in idealized calculations to simplify the analysis and focus on the primary energy transformations. In many theoretical models, such as those involving ideal machines or systems, the effects of friction are considered negligible. This allows for easier calculations and a clearer understanding of energy flow, although in real-world applications, friction must be accounted for to obtain accurate results.
3. How does ignoring friction affect energy calculations?
Ignoring friction can lead to overestimation of the efficiency and performance of a system. When friction is not considered, the calculated energy output may appear higher than what is achievable in practice. This can result in misleading conclusions about the energy requirements and operational capabilities of machines or systems.
4. In what scenarios is it acceptable to ignore friction losses?
It is acceptable to ignore friction losses in scenarios where the system operates at low speeds, where friction is minimal compared to the energy involved, or in theoretical studies that aim to understand fundamental principles. Examples include basic physics problems, introductory engineering calculations, or simulations where precision is not critical.
5. How can I account for friction losses in my energy calculations?
To account for friction losses, you can use empirical data or friction coefficients specific to the materials in contact. You can also apply formulas that quantify frictional forces and subtract these losses from the total energy output. Additionally, incorporating real-world testing and measurements into your calculations can help provide a more accurate representation of energy dynamics in your system.