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What is energy?
Transcript of What is energy?
Nuclear Power: Advantages and Disadvantages. (n.d.). Nuclear Power: Advantages and Disadvantages. Retrieved May 13, 2014, from http://www.cyberphysics.co.uk/topics/nuclear/advantages_disadvantages_nuclear_power.htm
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Sound Energy is a form of energy that is associated with vibrations of matter. A type of mechanical wave which means it requires an object to travel through air and water.
It is used to measure high pressure and low pressure in air to measure things like earthquakes, volcanoes, and avalanches.
Benefits-This energy is what sends sound waves for us to hear, such as noise or music.
Non benefits- cannot be used to directly used as a resource for power. Example, electrical and other energy uses.
Chemical Energy is energy stored within chemical compounds and often releases energy during a chemical reaction. Examples of chemical energy can include you body that uses chemical energy to produce energy for your body.
How it's used - chemical energy is used in battery's and petroleum.
Benefits and non benefits-
Benefits -it is the most abundant energy source available and chemical energy sources are easily combustible.
Non benefits- man-made chemical it has a negative effect on the environment since chemical energy is derived from organic materials burning and releasing harmful gases in the environment. Also, sources of chemical energy such as fossil fuels take thousands of years.
Types Of Energy
Ex a lit match
Mechanical energy is one of the most common of all the different types of energy. Every moving object has mechanical energy. Examples can be us when we are in motion, a hammer hitting a nail and a rushing river. Examples are only limited to what moves.
Benefits- It is common type of energy, and can be converted into many types of energy.
Non benefits- It often cannot be used to long periods of
time, gears can break, tires can wear away, most of the
things that power this energy are not inexhaustable.
What it is - the splitting of uranium atoms to produce electricity
How it's used -At power plants they use the fission processes for producing steam, which is used by a turbine to generate electricity.
Benefits and non benefits-
The Benefit is that with little fuel large amounts of energy is obtained also
The non benefits are that it is expensive to Dispose of nuclear waste and decommissioning a nuclear power station takes a long time and is expensive.
Kinetic Energy is the energy of an object when the object is in motion. Examples can be a moving car, someone running, or striking a match.
What is energy?
Thermal energy is the energy a substance or system has related to its temperature. (the energy of moving or vibrating molecules) Atoms and molecules are always in motion. You can often see of feel its effects The best way to measure it is by a thermometer.
Benefits- air conditioning and heaters, chillers, produces electricity
Non benefits- creating thermal energy is often by burning fossil fuels, producing greenhouse gases that is harmful to the enviroment
The dictionary defines energy as "power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines."
The Law of Conservation says that "energy can't be created nor destroyed." But it can change into different types of energy.
Today we are going to talk about the different types of energy that can make this happen.
Energy emmitted through different electical and
Examples Radio waves, gamma waves, micro-
waves, x-rays, and visible light.
Benefits- electomagnetic energy is clean, not radio-
active or harmful. Can be used for small projects such as micochips.
Non benefits-This energy has only been dicovered from the early 20th century by Edison and Tesla, and even though scientist believe it is harmless, not everyone is convinced.
Benefits- It is easy to access and is readily used
Non benefits- It is difficult to use as a source to power electicity, and is often unpredicatable in its