flight -energy transformations

Solution
The energy transformations of a coal fired power plant

Solar -------> Chemical potential --------> heat --------> kinetic----> electrical
Photosynthesis is the process that traps solar energy and converts it into chemical potential energy. This energy is stored in plant matter and is released as heat energy when coal is burnt. This heat is used to turn water into steam. The steam(water) molecules have a great deal of kinetic energy(they move very fast). This kinetic energy is used to turn the turbines that spin the generators producing electrical energy..

The energy transformations of a hydro-electric power plant

Solar-----> gravitational potential----->kinetic---->electrical

Water in the oceans of the world absorb solar heat energy. This heat energy causes the evaporation of many billions of tons of water around the world. The resultant water vapour rises high into the atmosphere where it condenses back into water and falls as rain. This water is trapped in man-made dams and used to turn huge turbines that spin the generators to create electrical energy.

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Energy transformations
We know that energy can not be created or destroyed but it can change from one form into another. We see examples of such transformations every day. We will now try some exercises.
All energy on Earth has originated from the Sun. We change the many forms of energy into electrical energy to drive our modern cities and to maintain our standard of living. There are many different types of power stations, two of which are coal fired and hydro-electric power plants. Although both coal-fired and hydro-electric power plants use generators to produce electricity it is the method each uses to spin the turbines driving the generators that is different.
	It is said that the electrical energy from coal-fired and hydro-electric power plants started as solar energy. Explain. Use the following words in your explanation. Evaporation, solar energy, photosynthesis, chemical potential energy, heat energy, kinetic energy, condensation, water vapour, electrical energy, gravitational potential energy. Solution
Continue with energy transformations (gravitational into kinetic)