In physics, energy is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law. Different forms of energy include kinetic, potential, thermal, gravitational, sound, light, elastic, and electromagnetic energy. The forms of energy are often named after a related force. An oil is any substance that is liquid at ambient temperatures and is hydrophobic but soluble in organic solvents. Oils have a high carbon and hydrogen content and are non-polar substances. The general definition above includes compound classes with otherwise unrelated chemical structures, properties and uses, including vegetable oils, petrochemical oils, and volatile essential oils. All oils can be traced back to organic sources.
Important Energy & Oil Related Issues
Energy & Oil – Key charts and statistics about the world’s supply of energy resources, world energy use, energy use in the United States, and the effects and causes of …
External Links to Energy & Oil
Energy & Oil – Oil is the lifeblood of America’s economy. Currently, it supplies more than 40% of our total energy demands and more than 99% of the fuel we use in our cars …
Energy & Oil – Introductory page for DOE’s oil and natural gas research programs.