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Energy:
the ability to go through a proccess that requires force.

Work:
The power to use enough force to change or move an object or thing

Law of Conservation of Energy:
a rule saying that energy can't be made or broken

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Light energy is energy that is in the form of visible light. this visible light is more accuraely called electromagnetic radiation.  That is why light energy i sometimes referred to as radiant energy.

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Important Questions (and the answers to them)

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Important Questions (and the answers to them)

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1. Can Energy Change?
Energy can indeed change. Energy can change its very form. For example,  Solar panels powering a stove to boil water. This shows light energy turning into electrical energy, and then, into thermal.
4. How does energy flow in a system?

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2. Can energy be created or destroyed ?
Energy cannot be created or
detroyed.  This is because energy changes into a different type, and is not destroyed; while the amount of energy stays the same.  For example, solar panels that power any sort of appliance. They turn light energy into electrical and then either mechanical or thermal, if not both. That mechanical or thermal energy eventually is reused or changed into another kind of energy.

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3. Can an object tranfer more than one type of energy ?
An object can, actually transfer more than one type, to an extent. For example, when an iridesent light bulb is turned on, apart from transferring light energy to give light, it also transfers thermal, or heat energy. The name for this kind of energy; the kind that is not needed to fulfill its purpose, is called waste energy.

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Mechanical Energy is energy that is in motion in order to do work. The purpose for mechanical energy is used for moving, holding, and lifting. In short, mechanical energy is a fancy name for kinetic energy.

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Sound energy is energy that is carried by sound waves. Sound waves are invisilbe waves of energy that can travel through all the states of matter which are : Solid , liquid , and gas. Sound Energy is created when an object is vibrating. This is because when the object is vibrating, The vibrations make noise, or sound, making sound energy.

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Energy that is stored in the atomic bonds of matter is known as chemical energy. Chemical Energy is used to keep atoms together. In food and fuel, there is a lot of Chemical Energy in it. Examples of Chemical  Energy include: Food on a plate, and gasoline.

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Electrical energy is energy that travels via charged particles. Electrical energy is more commonly known as electricity. By 'charged particles' It refers to charged electrons, or negatively charged particles, because that is the kind of particles that electrical energy travels by.  Electrical energy can change between two forms: static electricity and current electricity. Static electricity is essentially when the charged electrons build up in an object. Current Electricity is electricity that follows a path called a circuit.

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4. How does energy flow in a system?
Energy flows through a system, very fluidly, almost like flowing water. This is  because, the energy from the object travels, or transfered, from one object to the other. For example, when an appliance, like an celing fan. The source of the energy, like an electric circuit or current, the energy that it produces then is transfered  to the generator, then to the appliance.

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Thermal Energy is energy that has been heated in order for it to do work. Although the temperature may vary, as long as the change is noticeable, The energy will be considered thermal.