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Energy
The ability to produce change or do work, and work that can easily…
Energy
The ability to produce change or do work, and work that can easily be divided into several main tasks we easily recognize. Energy produces light, energy produces heat, energy produces motion, energy produces sound, energy produces growth and energy powers technology.
Forms of Energy
Potential Energy: This energy is stored and it is the energy of position or gravitational potential energy.
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Kinetic Energy: This energy is motion. It is the motion of waves, electrons,atoms, molecules, substances and objects.
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Efficiency:Energy efficiency is the amount of useful energy you can get out of a system.
A machine that is energy efficient would use all or most of the energy put into the machine and put it to use. It is hard to make a machine 100% energy efficient because there is always a little loss of the usable energy when you convert one form of energy into another.
Sources of Energy
Renewable
They are called renewable energy sources because their
supplies are replenished in a short time.
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Non-Renewable
These energy sources are called nonrenewable because they cannot be
replenished in a short period of time.
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Secondary Energy: This is energy that is derived from another source of fuel. For example electricity. The electricity we use in our homes is the energy that powers them but in order to get the electricity you have to wind, sun or other sources to create the electricity.
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Energy Consumption is how much energy we use and make. We normally measure our energy computation by year. By recording our energy consumption we can see that we use a lot of it and most of it is going to waste. So over the past few years we have been working on ways to get our energy more Eco friendly and we are trying to finds way to waste so much. Sometimes the fix is as simple as turning out the room light once you our done to help save energy or we have had to come up with inventions to help us waste less energy. We TV's that turn off if the remote hasn't been used in a while or light bulbs that need less energy to light up.
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Measuring with BTU’s. BTU stands for British Thermal Units and it is a way of measuring heat and energy. One BTU is equal to how much energy it takes to heat up one pound of water to one degree Fahrenheit. The BTU measures how much energy or heat an appliance is generating. For example, It is useful to be able to tell if a heater would be able to heat the room you are buying it for.
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Users of energy
Electric Power. This includes power plants and generation facilities.The electric power sector consumed 38.92 percent of the total energy supply in 2015.
Industrial. This includes industries like farming fishing and mining. This sector consumed 21.44 quads of energy in 2015.
Transportation. This includes cars, buses and planes.The energy use of this sector accounted for 28.27 percent of total consumption in 2015.
Residential/Commercial. These are peoples houses and buildings life hospitals or office building. The residential/commercial sector of the economy consumed 10.76 percent of the total energy supply in 2015.
Energy Prices Information. People found when the energy prices went up people used less energy. We learned this in the 1970's when there was an oil embargo. When the price dropped a little in 2008 the energy use went up. So we have now realized it is important that the energy prices have gone up other wise we would be using almost double the amount of energy we were in the 1970's rather then less.
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