1. The Nature
Of Energy

2. What is energy? A conserved substance like quantity
Let’s discuss this definition because your book and the internet might use this definition…..the ability to do work.

3. Energy
Here is where the problem lies….not the definition of energy so much as your current understanding of work.

4. Energy
We associate energy with storage modes……Let’s list some

5. Mechanical Energy Motion energy
Energy stored in motion or the lack of motion

6. Thermal Energy
Heat energy
Energy stored in moving atoms

7. Chemical Energy
Bonding energy
Energy stored in the bonds of molecules

8. Sound Energy
Vibration energy
Energy stored in vibrating molecules

9. Electrical Energy
Electricity
Energy stored in moving electrons

10. KE=½ (MASS)(VELOCITY2)
Mechanical Energy
Kinetic Energy
Energy stored in motion of objects
Depends on
Mass of an object
Velocity of the object
Equation:
KE=½ (MASS)(VELOCITY2)

11. Mechanical Energy Kinetic Energy
The faster the object moves the MORE KINETIC ENERGY the object stores
The more mass the object has the MORE KINETIC ENERGY the object stores

12. Mechanical Energy Potential Energy
Energy stored in the position of objects
Depends on
The type of potential energy