Conservation of Energy: Formula & Definition

In summary, the conservation of energy is a fundamental law of physics that states that energy cannot be created or destroyed, only transferred or converted from one form to another. In a closed system, the total amount of energy remains constant over time. This applies to everyday life in activities such as turning on a light switch or using a cell phone. Real-world examples include pendulum swings, water wheels, and roller coasters.
  • #1
marshall4
50
0
What is the formula for conservation of energy?
 
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  • #2
dE/dT = constant.

Or, if you prefer, the simpler

E = constant.

- Warren
 
  • #3
Or: Ein = Eout
 
  • #4
Oops, I meant dE/dt = 0, not constant. Of course, zero is a constant...

- Warren
 
  • #5
If energy can neither be created nor destroyed - than the logical formula would be that energy before would have to equal energy after.

But you must consider potential, kinetic, friction, heat loss ect...j


Nautica
 

1. What is the formula for conservation of energy?

The formula for conservation of energy is Etotal = Ekinetic + Epotential, where Etotal represents the total energy of a system, Ekinetic represents the kinetic energy of the system, and Epotential represents the potential energy of the system.

2. How is energy conserved in a closed system?

In a closed system, energy is conserved because it cannot be created or destroyed. This means that the total energy of the system remains constant, even as energy may change form or transfer between different objects within the system.

3. What is the definition of conservation of energy?

The conservation of energy is a fundamental law of physics that states that energy cannot be created or destroyed, only transferred or converted from one form to another. This means that the total amount of energy in a closed system will remain constant over time.

4. How does the conservation of energy apply to everyday life?

The conservation of energy applies to everyday life in many ways. For example, when we turn on a light switch, electrical energy is converted to light energy, but the total energy in the system remains constant. The same principle applies to many other everyday activities, such as driving a car or using a cell phone.

5. What are some real-world examples of the conservation of energy?

Some real-world examples of the conservation of energy include pendulum swings, water wheels, and roller coasters. In all of these examples, energy is transferred or converted between different forms, but the total amount of energy in the system remains the same.

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