INTRODUCTION TO ENERGY

ENERGY

• Is the ability to cause change.
• There are several types of energy.
• Energy can not be created or destroyed.
• Energy before = Energy after.

POTENTIAL ENERGY

• Potential energy is stored in an object or system.
• An example of potential energy is a drawn bow able to store energy as result of its position.

KINETIC ENERGY

• Occurs when something has motion.
• Also know as "work needed to accelerate."
• 1/2mv2

GRAVITATIONAL POTENTIAL ENERGY

• Energy stored in an object as the result of its vertical position or height
• The energy is stored as a result of gravitational attraction to earth.

CHEMICAL POTENTIAL ENERGY

• Energy that is stored in atoms and bonds between atoms and can be released by various chemical reactions.
• Example: when gasoline is burned.

ELASTIC POTENTIAL ENERGY

• Energy stored in materials as the result of their stretching and compressing.
• This energy can be stored in rubber bands and bungee cords.

MECHANICAL ENERGY

• Energy that is associated with the motion and position of an object
• Defined as the ability to do works

LAW OF CONSERVATION OF ENERGY

• This law states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another

CONCLUSION

• To have energy in the future you must understand energy and types of energy