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In which country were 89 of all homes heated by geothermal energy in 2006?
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∙ 15y ago
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What are the six forms of energy?
Sound Energy- is produced when an object is made to vibrate. Sound energy travels out as waves in all directions. Sound needs a medium to travel through, such as air, water, wood, and even metal! Examples: Voices, whistles, horns and musical instruments. Chemical Energy - is really a form of potential energy and is the energy stored in food, gasoline or chemical combinations. Examples: Striking a match, combining vinegar and baking soda to form CO2 Gas, breaking light sticks releases chemical energy. Light Energy - is a combination of heat and light energy. Light energy, like sound energy, travels out in all directions in waves. Examples: A light bulb, the glowing coils on a toaster, the sun, and even headlights on cars. Electrical Energy - Energy produced by electrons moving through a substance is known as electrical energy. We mostly see electric energy in batteries and from the outlets in our homes. Electrical energy lights our homes, run motors, and makers our TVs and radios work. Examples: CD players, TVs and Video games. Nuculear Energy - is produced when you split atoms. A tremendous amount of energy is released when this happens. Examples:Atomic bombs, nuclear power plants, nuclear submarines, and the sun, and star Mechanical Energy - is moving energy. It is the form that we most see around us. All moving objects produce mechanical energy. The movements within machines is also mechanical energy. Examples: People, a rolling bicycle, moving gears, and running cars.
How are humans dependent on energy?
Humans obtain energy by exercising daily,and staying in the sun
What kind of chemical changes produces heat?
Exothermic chemical reactions release energy in the form of heat and sometimes light. A common example would be the combustion (oxidation) of methane*:Methane: CH4 + 2O2 -----> CO2 + 2H2O + Energy (heat and light)* The combustion of methane (natural gas) is commonly used to heat water, cook, and to heat homes.
Types of renewable energy and how does each works?
HydropowerHydropower is the largest source of renewable energy.Converting flowing water into usable energy produces hydropower. Most of this water comes from rivers and is released through turbines to produce energy. Although this power source does not release pollution, it can possibly harm fish and wildlife, displace people, and alter the quality of water. Better technology is trying to reduce the loss of aquatic life, but the problem with this technology is that it is highly expensive and takes a long time to build.Biomass/BioenergyBiomass makes up about 7,000 Megawatts of renewable electricity. Biomass fuels stem from industrial processing, such as forestry and wood products, agriculture and wood products, and construction and transportation. Biomass can replace coal in power plants because it produces less sulfur dioxide than coal.Mill operations seem to be the main source of biomass energy in the U.S. Europe, on the other hand, draws its main source of bioenergy from urban wood waste. Third world countries make timber their main source of bioenergy.According from statistics from the International Energy Agency, 11% of the world derives its energy from biomass. Developing countries use about 35%, while the poorest ones use roughly 90%.One way to convert biomass into usable energy is through gasification-converting biomass to gas and burning it in a gas turbine.Geothermal EnergyGeothermal energy is capable of producing about 2,800 Megawatts of energy per year, or roughly .2% of the energy in the U.S. Geothermal energy is produced from naturally occurring steam and hot water from under the Earth's surface. The steam rotates a turbine, which in turn powers an electric generator. Also, hot water can be used to directly heat buildings. The downside to geothermal energy is that land sites are very hard to find and extremely rare. A positive fact is that geothermal energy is very cost effective and reliable.Wind EnergyThe wind rotates blades around a hub, which is connected to the main shaft. The main shaft spins a generator. The size of turbines is determined by how much energy is needed. Small wind turbines are usually used for homes, farms and ranches. Other ways to use wind energy include grinding grain and pumping water.Wind is classed in categories of 1 through 7, with 7 being the highest and 1 being the lowest. A good wind source that has a class of 3 or higher is the east coast and along the Appalachian Mountains. North Dakota is an excellent wind source.The disadvantages of wind energy are that again, the technology is very expensive, the machinery is known to be noisy, birds have been killed by running into the turbines, and the wind might not be present at certain times throughout the year.Photovoltaics (PV) CellsPV cells produce electricity from sunlight. Materials used in computer chips are similar to materials used in PV cells. These materials absorb sunlight, which frees the electrons from their atoms and allows them to generate electricity.PV cells are great because they don't require high maintenance, are very reliable, and don't produce pollutants.Although it is better to use renewable energy, we still have to use some type of fossil fuels. We can, however, make the best choices, by using natural gas for water heating and power appliance, which not only is better for the environment, but costs less as well.The downside to this power resource is that it costs more than other energy sources and tends to work effectively only when the sun is shining.
Is hydroelectric energy good or bad?
The energy is inexhaustibleand it is one of the cleanest sources pf energy. signed, Mrs. Hoyle The energy is inexhaustibleand it is one of the cleanest sources pf energy. signed, Mrs. Hoyle I am working on a debate for school, and my group's topic is "Alternative sources of energy save energy and money." Through my research I have found that hydroelectricity is actually polluting because of the carbon residue on the bottom of the body of water getting kicked up by the turbines. Here is one of the sites that this information was received from http://www.freerepublic.com/focus/news/1350150/posts And its the shizit because i know and its awesome dude
How are most homes in factories in Iceland heated and powered?
geothermal energyMost homes and factories in Iceland are powered by Geothermal energy. This is power extracted from the heat stored in the earth.
What does the future of geothermal energy look like?
The future of geothermal energy looks promising as many homes are heated using this type of venting in areas of Europe. Many plants are being built in order to gather the energy and conserve it.
What country uses geothermal energy to heat their homes?
Iceland is the largest consumer green energy and of geothermal energy. Geothermal energy provides about 65 percent of their primary energy. This form of energy is mainly used in space hearting. District heating systems aid in distributing the heat evenly through buildings. 85% of all the home in this country use geothermal energy.
What do you use geothermal energy for?
We use geothermal energy for heating homes. Ancient Indians used hot springs for bathing and to heat their homes.
Were is geothermal used?
geothermal energy is used to heat homes and provide electricity.
Where are natural geysers found?
Iceland, they are hot pool OS water,heated by magma under the earths crust, 80percent of homes are heated by geothermal energy from geysers and hot pools in iceland
What kind of energy heats all of the homes and most of the businesses in Reykjavik Iceland?
In Reykjavík all homes and businesses are heated by geothermal energy. Steam and hot water is drawn from beneath the surface and distributed via underground pipelines.
How do you use geothermal in a sentence?
some people use geothermal energy to heat their homes.
What are the main uses of geothermal energy?
Geothermal energy is a renewable and inexpensive way to heat homes and businesses. It is useful mostly for those in the immediate are of the source, however.
How do you get geothermal energy?
You get geothermal energy by drilling into the ground, where you use the heat to make steam. the steam then powers a turbo generator, which makes energy to power homes.
How can geothermal energy be used in Lancaster?
geothermal energy can be used in Lancaster by powering homes and providing heat. the good or best thing about it is that it is renewable.
Does Denmark use geothermal energy for heat and lights in their homes?
yes
