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useful energy x 100
useful energy x 100

... of energy to keep cities going. The most common form used is electrical energy. This energy comes from a range of different types of power plants. ...
Q: What is energy? Q: What is work? Q: Potential Energy Q: Kinetic
Q: What is energy? Q: What is work? Q: Potential Energy Q: Kinetic

... energy travel from the sun to the Earth through space. Space does not have any air. ...
An Energy Fundamentals Intro and Summary
An Energy Fundamentals Intro and Summary

... energy required to raise the temperature of one pound of water by one degree Fahrenheit. ■ Or roughly the energy in one kitchen match. ■ A BTU equals 777 foot pounds of work. This ...
Energy Study Guide File
Energy Study Guide File

... 8. Two objects of different masses are moving with the same speed. Which one has more Kinetic Energy? a. the heavier one b. the lighter one c. They both have the same Kinetic Energy d. Neither one has Kinetic Energy 9. A baseball is thrown to a batter. Which pitcher throws the ball with more Kineti ...
Physics Revision For the May Assessment
Physics Revision For the May Assessment

... National and global energy resources The main energy resources available for use on Earth include: fossil fuels (coal, oil and gas), nuclear fuel, biofuel, wind, hydro-electricity, geothermal, the tides, the Sun and water waves. A renewable energy resource is one that is being (or can be) replenish ...
Chapter 13 Work and Energy notes
Chapter 13 Work and Energy notes

... Mechanical Energy (PE and KE) can easily change into other forms of energy. Kinetic Energy can change in heat energy, sound energy, or light energy The Law of Conservation of Energy – Energy cannot be created or destroyed. The total amount of energy in the Universe never changes; although the energy ...
Let`s Convert Energy
Let`s Convert Energy

... sun or a light bulb, is radiant energy. Gravitational energy is the energy an object has due to its position above the ground. Food and fuel contain chemical energy, while hot objects contain thermal energy. A machine with moving parts or a moving fluid has mechanical energy. Charged objects are fil ...
Let`s Convert Energy
Let`s Convert Energy

... Energy is all around us, all of the time. It may, however, be known by different names depending on its source. Light, whether it comes from the sun or a light bulb, is radiant energy. Gravitational energy is the energy an object has due to its position above the ground. Food and fuel contain chemic ...
Let`s Convert Energy
Let`s Convert Energy

... Energy is all around us all of the time. It may, however, be known by different names depending on its source. Light, whether it comes from the sun or a light bulb, is radiant energy. Gravitational energy is the energy an object has due to its position above the ground. Food and fuel contain chemica ...
Choose the best answer for each question: A circuit in which the
Choose the best answer for each question: A circuit in which the

... 7. Moving a force through a distance. If an object does not move, no work has been done. a. heat 
b. Watt c. energy d. work 8. Energy cannot be created or destroyed. Energy can only change in form or be transferred. a. law of conservation of energy 
b. chemical energy c. potential energy d. kinetic ...
Work and Energy
Work and Energy

... you push a box with a force of one newton for a distance of one meter, you have done exactly one joule of work. ...
Energy
Energy

...  Pulling back on a bow’s arrow.  Lifting a brick high in the air.  Potential energy that is dependent on height is called gravitational potential energy.  Energy that is stored due to being stretched or compressed is called elastic potential energy. Law of Conservation of Energy  Energy can be ...
Work
Work

... Engines ...
File
File

... of energy to keep cities going. The most common form used is electrical energy. This energy comes from a range of different types of power plants. ...
Energy
Energy

... m = mass of substance c = specific heat capacity of the substance T = temperature change = Tfinal – Tinitial ...
Netscape: THE ENERGY STORY: Chapter 1
Netscape: THE ENERGY STORY: Chapter 1

... light and heat energy. If it's nighttime, street lamps are using electrical energy to make light. A car drives by your school or house. It is being powered by gasoline, a type of stored energy. Our bodies eat food, which has energy in it. We use that food to play or study. Energy makes everything ha ...
PowerPoint - Chemistry Land
PowerPoint - Chemistry Land

... transforms to petroleum, which contains gasoline (still chemical energy). In a car’s engine, combustion of gasoline & oxygen makes H2O and CO2. The breaking of gasoline bonds converts chemical energy to thermal energy which heats up the H2O and CO2 gases causing high pressure in the cylinder. High p ...
Energy and Energy Resources
Energy and Energy Resources

...  Gravitational Potential Energy is energy that is stored due to the gravitational attraction of the Earth on the object  When an object is lifted up off of the ground, a force is applied to lift the object. The energy used to lift the object is stored in the object  GPE is calculated with the for ...
The Nature of Energy
The Nature of Energy

... Energy Transformation • Most objects are sitting with a maximum potential energy or PE, but if the object starts to move, then the PE changes into Kinetic Energy. When the object has stopped moving, then the KE transforms back into the PE again. • Example: An apple falling from an apple ...
I) Work II) Power III) Mechanical Energy
I) Work II) Power III) Mechanical Energy

... (a) Carbon (w/ O & H) is the primary component of carbohydrates and fats, the main sources of energy for all living things (b) Carbon chain + O2  CO2 + Energy • (this reaction occurs in the Mitochondria) B) Only green plants and certain one-celled organisms can make carbon dioxide combine with wate ...
Energy and Angular Momentum. Laws
Energy and Angular Momentum. Laws

... Kinetic and Potential Energy Kinetic energy is associated with motion; a ball in motion will have kinetic energy: KE = ½ m v2 which can be derived by measuring its mass and velocity. n  Potential energy is energy stored (e.g., water behind a dam, a ball at the edge of a table, etc.); if the ball r ...
Physical Science - Kingdom Schools
Physical Science - Kingdom Schools

... Conservation of Energy. Give examples that illustrate the transfer of energy from one object (or substance) to another, and examples of energy being transformed from one to another. Use energy chains to trace the flow of energy through ...
Energy
Energy

... Work is the transfer of energy through motion. In order for work to take place, a force must be exerted through a distance. The amount of work done depends on two things: the amount of force exerted and the distance over which the force is applied. There are two factors to keep in mind when decidin ...
Energy Flow
Energy Flow

... CO2 + H2O + heat ...
Energy
Energy

... Chemical Energy  type of potential energy stored in the chemical composition of matter  depends on the types and ≈464,000 J arrangement of atoms in a substance  i.e.  A bond between a hydrogen atom and an oxygen (H-O) atom will release more energy than one between two carbon atoms (C-C) ...
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World energy consumption



World energy consumption refers to the total energy used by all of human civilization. Typically measured per year, it involves all energy harnessed from every energy source applied towards humanity's endeavors across every single industrial and technological sector, across every country. Being the power source metric of civilization, World Energy Consumption has deep implications for humanity's social-economic-political sphere.Institutions such as the International Energy Agency (IEA), the U.S. Energy Information Administration (EIA), and the European Environment Agency record and publish energy data periodically. Improved data and understanding of World Energy Consumption may reveal systemic trends and patterns, which could help frame current energy issues and encourage movement towards collectively useful solutions.In 2012, the IEA estimated that the world energy consumption was 155,505 terawatt-hour (TWh), or 5.598 × 1020 joules. This works out to 17.7 TW, or a bit less than the estimated 20 TW produced by radioactive decay on earth. From 2000–2012 coal was the source of energy with the largest growth. The use of oil and natural gas also had considerable growth, followed by hydro power and renewable energy. Renewable energy grew at a rate faster than any other time in history during this period, which can possibly be explained by an increase in international investment in renewable energy. The demand for nuclear energy decreased, possibly due to the accidents at Chernobyl and Three Mile Island.In 2011, expenditures on energy totaled over 6 trillion USD, or about 10% of the world gross domestic product (GDP). Europe spends close to one quarter of the world energy expenditures, Americans close to 20%, and Japan 6%.
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