Forms Of Matter and Energy By Elizabeth Harris. Forms Of Energy There are five different forms of energy. Mechanical, Electromagnetic, Electrical, Chemical.

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Presentation transcript:

Forms Of Matter and Energy By Elizabeth Harris

Forms Of Energy There are five different forms of energy. Mechanical, Electromagnetic, Electrical, Chemical and Thermal. Each form of energy has it’s own way of functioning.

What is Mechanical Energy? Mechanical Energy is energy due to certain motions (kinetic) or positions (potential) objects have when they collide. The energy of motion. When skis on snow are sliding down a mountain, mechanical energy is formed between the two.

Electromagnetic Energy This energy is a form of light energy. Cell phones use electromagnetic energy to function properly. As well as X-rays, Ultraviolet rays, and other visual light like microwaves use.

Electrical Energy? What is electrical energy? Electrical energy is energy that is caused by movement of electrons. Electrons are negatively charged and are contained inside atoms. Electrical Energy is easily transmitted throughout things such as electricity lines that power our lights and other appliances.

What is Chemical Energy? Chemical Energy is energy that is released by chemical reactions. Digesting food in your stomach is a form of chemical energy. When you digest food bonds are broken between the atoms which makes chemical energy.

What is thermal energy? Thermal means heat. So thermal energy is a form of energy that occurs around heat reactions. The faster molecules move in atoms the more heat is produced. An example of Thermal energy is friction. When you rub your hands together you create friction, or heat energy.

States of Energy How many states of energy are there? There are two states of energy. Potential and Kinetic. Both states of energy apply to certain forms of energy.

What is Potential Energy? Potential energy is energy of position- stored energy. Potential energy can appear in many different forms of energy.

What is Kinetic Energy you ask? Kinetic energy is the energy of motion. The faster an object moves, the more kinetic energy is built up. Kinetic energy must depend on mass and velocity. KE = ½(mass x velocity2) Kg m2/s2 = Newton*Meter= Joules

When Energy Converses. One common energy converse involves potential energy changing into kinetic energy. Or kinetic energy- potential. An example would be: When you drop a ball of clay the force of the gravity on the clay coverts potential to kinetic energy.

Other Conversations? Any form of energy can be converted to another form. Energy can not be created of destroyed as the law of conversation of energy states. And example would be: When Electromagnetic energy comes in it produces light. When the light is produced it converts into heat.

THE END!

References /Prof.%20Mak%20and%20others/2%20Fr equently%20used%20energy/forms%20of %20energy.pdfhttp://ls.fed.cuhk.edu.hk/resources/2006_4 /Prof.%20Mak%20and%20others/2%20Fr equently%20used%20energy/forms%20of %20energy.pdf KE.htmlhttp:// KE.html