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...Is when energy changes from one form to another. For example, when a battery powers a lightbulb, the energy changes from chemical to electrical to radiant energy.

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Energy is simply the ability to do work. Work is anything that is an action. It can interact with solid objects and cause them to proceed or convert. Energy can also be used to maintain a process or carry out an action.

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All types of energy can be both kinetic and potential.

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Some of the main types of energy are Mechanical, Electrical, Sound, Thermal, Radiant, and Chemical.

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There is potential energy before the bike goes up the hill. There is kinetic energy as the person rides the bike.

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Kinetic energy is the energy of motion. However, potential energy is stored energy that is about to be used. Two examples of kinetic energy are someone running or a ball rolling. Two examples of potential energy are a rubber band and a battery.

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Gears are an example of things that move.

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This has to do with motion or position. It can include moving, lifting, or holding things. 2 examples are a person lifting a box or a waterwheel spinning.

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Sound energy travels through sound waves.

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Sound energy is the vibrations that are created when sound is made. It can travel through any type of matter: solid, liquid, or gas. 2 examples are a speaker or a ball bouncing and making noise on a floor.

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This is energy that is carried by light. It has to do with the electromagnetic spectrum that includes different types of light. 2 examples are light from the Sun and a flashlight.

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Thermal energy is associated with temperature. A hot object has more thermal energy than a cold object. 2 examples are a pot of boiling water and feeling hot after running.

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This is carried by charged particles that can move to different places. Current electricity moves in a path known as a circuit. 2 examples are a cellphone and lightning.

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This is energy stored in the bonds between atoms and keeps the atoms together. It is released or absorbed during a chemical reaction. 2 examples of this are the body being powered by chemical energy and a battery storing chemical potential energy.

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There are other types of energy, like nuclear energy is another type of a energy - it's just not one of the main 6 types of energy.

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 In the food chain above, the Sun's radiant energy causes grass to grow. When animals eat it, the energy is converted to chemical energy.

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The Sun provides radiant or light energy and its energy is the source of all the energy on the earth! This causes food chains.

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...Is when energy is movement of the same form of energy. It doesn't change the type of energy. When you're boiling a pot of water, the thermal energy is transferred from the stove to the pot to the water.

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This law simply states that energy cannot be created or destroyed. However, it can be both transferred and transformed. In a system, the total amount of energy stays the same.

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Plants use the Sun's energy to grow. The dinosaurs ate the plants, and when they died, they turned into fossils, which became fossil fuels. These can be burned to create electrical energy.

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This is extra energy that isn't used to power anything in a system. When you turn on a light bulb, there is excess heat energy released along with radiant energy.

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Nuclear energy is the energy that is used when you change an atom. It can happen after nuclear fission (splitting atoms) or fusion (crashing them together). After the explosion a bunch of radioactive waste is produced which could make that area radioactive for at least 100 years if it escaped.

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Gravitational energy is one of the coolest types of energy because without gravitational energy we would be floating right now.  The reason why we stay on the ground is because the gravitational pull pulls us down to stay on the Earth and not float into space.

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Mechanical energy from the wind transforms into electrical energy.

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Through energy transformation, energy can be changed into many different forms.

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In other words, energy can only be transferred or transformed, but it can't appear or disappear.

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Can an object transfer more than one type of energy?

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Can an object transfer more than one type of energy?

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A campfire releases both thermal and radiant energy. This means that several types of energy can be transferred at the same time.

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The girl riding the bike activates the wheel, which heats the water.

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PhET Lab Energy Transfer and Transformation

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PhET Lab Energy Transfer and Transformation

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The chemical energy from the girl riding the bike turns into mechanical energy. Heat energy is released as waste energy. The wheel turns it into electrical energy, which heats the water. The energy flows through the system by being transferred from the bike to the wheel, and eventually to the water.

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Wind happens when the Earth is unevenly heated by the Sun. Air molecules are affected by this and flow through the atmosphere.