Conservation of Energy in daily life

AI Thread Summary
Conservation of energy is evident in various daily life scenarios, particularly in energy conversions. Common examples include the transformation of potential energy to kinetic energy in a pendulum and the conversion of chemical energy to heat energy during combustion. Additionally, electric motors illustrate the conversion of electrical energy to kinetic and heat energy. Everyday activities like cooking and driving a car also demonstrate these principles. Overall, any situation involving energy conversion serves as a practical example of energy conservation.
Swagger
Messages
19
Reaction score
0
I am trying to come up with a good example of a common situation where conservation of energy applies. Anybody have any suggestions?

Thanks
 
Physics news on Phys.org
Any particular kinds of energy? The most common would be PE <--> KE, with an example being a pendulum. Another would be ChemE <--> Heat energy, with combustion being an example.
 
Electrical to kinetic (+ heat): electric motor.

Cooking.

Driving a car.

Pretty much every situation where you see an energy conversion (kinda by definition) is a good example of conservation...
 
Hi there, im studying nanoscience at the university in Basel. Today I looked at the topic of intertial and non-inertial reference frames and the existence of fictitious forces. I understand that you call forces real in physics if they appear in interplay. Meaning that a force is real when there is the "actio" partner to the "reactio" partner. If this condition is not satisfied the force is not real. I also understand that if you specifically look at non-inertial reference frames you can...
This has been discussed many times on PF, and will likely come up again, so the video might come handy. Previous threads: https://www.physicsforums.com/threads/is-a-treadmill-incline-just-a-marketing-gimmick.937725/ https://www.physicsforums.com/threads/work-done-running-on-an-inclined-treadmill.927825/ https://www.physicsforums.com/threads/how-do-we-calculate-the-energy-we-used-to-do-something.1052162/
I have recently been really interested in the derivation of Hamiltons Principle. On my research I found that with the term ##m \cdot \frac{d}{dt} (\frac{dr}{dt} \cdot \delta r) = 0## (1) one may derivate ##\delta \int (T - V) dt = 0## (2). The derivation itself I understood quiet good, but what I don't understand is where the equation (1) came from, because in my research it was just given and not derived from anywhere. Does anybody know where (1) comes from or why from it the...
Back
Top