Energy transforms...

Read the following information about the Forms of Energy and watch the following videos, then watch this https://www.brainpop.com/science/energy/formsofenergy/ video, take the "graded quiz" and record your score in your Science Notebooks.

from www.dictionary.com:

energy  (ěn'ər-jē) Pronunciation Key 
The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts.

 Forms of Energy

Energy can come in a variety of forms.

1. Radiant Energy - is light energy, that when absorbed by an object, gets converted to thermal/heat energy.

 Examples: A light bulb, the glowing coils on a toaster, the sun, and even headlights on cars. 

2. Thermal Energy - is the energy of molecular movement; it's heat energy. The faster the molecules move, the more thermal energy is present.  Heat is the transfer of thermal energy i.e. when thermal energy moves from object to object, we feel it as heat.

3. Chemical Energy - is really a form of potential energy and is the energy stored in food, gasoline or chemical bonds.
Examples: Striking a match, food, batteries.  

4. Electrical Energy - Energy produced by electrons moving through a substance is known as electrical energy. We see evidence of electricity in household appliances, electric outlets, phone chargers, electric wires. 
Examples: MP3 players, computers, video games, holiday light wires.

5. Mechanical Energy - is the energy of movement. All moving objects have mechanical energy. Examples: bicycles, machine parts, subway trains, wheels, us!

M.E. = P.E. + K.E.

  

6. Sound Energy- is produced when a solid, liquid or gas vibrates. Sound energy travels out as waves in all directions.
Examples: Voices, sirens, horns and musical instruments.

 6. 

C. Generating Electricity!!!

- Electrical energy is needed in our daily lives.  Imagine what life would be like if all those appliances that you plug in on a daily basis were to disappear...   No refrigerators, no phones, no television, no hot water, etc.



Power plants use a generator to generate electricity.  A turbine turns the generator.  Mechanical energy is needed to turn the turbine, usually in the form of steam pushing against its blades.  Now, all we need is a source of thermal energy to boil the water into a gas.

 

Energy exploration websites
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