Forms of Energy
Print Forms of Energy Reading Comprehension
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Forms of Energy
By Brenda B. Covert
1 Energy is power - usable power. However, energy is not just the ability of a person to move and work and play. Every time anything moves - the wind, water, cars, clocks, animals, and more - energy is what makes it happen!
2 It takes energy for your remote-control cars, karaoke machines, video games, and computers to work. It takes energy for people, plants, and animals to grow. It takes energy to cook a meal or read a book! As you might by now suspect, there is more than one form of energy.
3 One way that energy is classified is by putting it into one of two broad groups: potential energy and kinetic energy. Potential energy is energy that is waiting to be used, such as a sled on top of a hill. Batteries in a package waiting to be used are a form of potential energy. Kinetic energy is energy in action, such as the sled sliding down the hill or the flow of electricity powering the electronic game that runs on batteries. The total amount of energy in an object is its mechanical energy. Mechanical energy is the object's potential energy plus the object's kinetic energy.
4 Another way of classifying energy is to divide it into groups based on what form the energy takes. Here are some forms of energy:
5 Electrical energy: You probably thought of this one right away! Power lines are everywhere. Electricity is easy to move from one place to another using wire. It is produced by the movement of electrons. We use electrical energy to light and heat our homes, run our dishwashers and washing machines, cook our food, play our music, and more. Speaking of music ...
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