04.25.24 EAS Laws of Conservation

• "is the capacity to do work"

• measured in Joules (J) (pronounced like jewels)

• comes in many different forms/types

• CANNOT be negative

​The higher you swing the most potential energy, when you swing down it is transformed to kinetic energy

Riding the Swings​

Chemical Potential Energy from the gasoline transforms to kinetic energy when the car moves ​

Car Engine ​

Energy Being transformed from one form to an another ​

Law of Conservation of Energy/ 1st Law of Thermodynamics​

• Energy​ can never be created nor destroyed but can be transformed into other forms

MUST REMEMBER!!​

1. Energy cannot be destroyed

2. Energy cannot be created

3. ​Energy can ONLY be transformed from one form to a another

The sum of the kinetic energy and potential energy is equal to mechanical energy​

ME= mechanical energy

KE= kinetic energy

PE= potential energy ​

​

ME= KE + PE

Energy= ​is the ability to change

Total energy of a closed system is conserved, which is known as mechanical energy​

Law of Conservation Energy ​

MECHANICAL ENERGY​

​Mechanical energy(total energy) remains the same even when it transforms from potential energy to kinetic energy.

Some text here about the topic of discussion

The 2nd law states that “whenever energy changes form, some of it is always converted to thermal waste energy (heat) & released" to the surroundings

Unusable energy = entropy; a measure of the disorder in a system.

What is HEAT?

The Heat Energy released from your car is WASTE energy (thermal), a product of every energy transformations.

(Energy in gas - some converts to mechanical energy and some to thermal energy)