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Question #2: Can energy be created or destroyed?

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Question #2: Can energy be created or destroyed?

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No, the law of conservation of energy says that energy cannot be created or destroyed. Nothing creates energy, it gets energy from nature and then changes it into energy that we can use to power our homes and fuel ourselves.

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Light or radiant energy is energy that is carried by light. The light is sometimes visible to the human eye and sometime is not visible but it is still there. Light energy is found in the sun, flashlights, and x-rays.

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Energy is the ability to do work.

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Work is the ability to change, move, or form something

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The law of conservation of energy saws no energy can be created or destroyed. Ever. But, energy can be changed from one type to another.

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Mechanical energy is energy that an object has because of movement. Mechanical energy is used to pick up, hold, or move objects. Mechanical energy is there when the wind moves around air, when you pedal on a bicycle, and when you swing a hammer to hammer a nail.

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Electrical energy is energy that is carried by charged particles. Electrical energy is electricity and is used to power systems. Electrical energy is found in electrical sockets which provide electrical energy.

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Sound energy is carried on sound waves and is what we hear. Sound energy is created when an object vibrates. That sound is then carried on sound waves to our ears.

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Chemical energy is stored in the bonds between atoms. It keep the atoms bonded together. Chemical energy stores potential energy in things like food or fuel. When it is used or eaten the energy is released.

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Thermal energy is related to temperature or how hot or cold something is. Temperature is created by atoms vibrating, the faster they go the hotter it will be. The hotter an object is, the more thermal energy it will contain. Thermal energy can be found in anything hot or cold like heat packs and ice packs.

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Yes, energy can change. Energy goes from one form to another a lot. While energy cannot be created or destroyed it does change forms. A speaker is powered by electrical energy if it is plugged into an electrical socket. Then that electrical energy is transferred to sound energy so that it can make the sounds that we hear come out of the speaker. So, changes in the forms of energy happens to power circuits or make everyday things happen.

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Question #3: Can an object transfer more than one type of energy?

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Question #3: Can an object transfer more than one type of energy?

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Yes, an object can release or transfer more than one type of energy. For example, a campfire takes chemical energy to light the fire and then transforms that energy into smoke, light, and heat. This produces light energy and heat energy. This means that an object can transfer many different types of energy.

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Question #4: How does energy flow in a system?

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Question #4: How does energy flow in a system?

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Energy can flow through the air, through electrical systems, and through objects. When the heat and mechanical energy come from the kettle they flow out and through the air. Only some of them are caught by the wheel but the rest continue to float around in the air in the form of steam. The energy that does get caught by the wheel goes into the system and is changed to electrical energy. That electrical energy moves into the light bulb where it is used to power it and then floats off as light and heat energy.