Download potential energy.

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Dark energy wikipedia , lookup

William Flynn Martin wikipedia , lookup

Open energy system models wikipedia , lookup

Energy subsidies wikipedia , lookup

100% renewable energy wikipedia , lookup

Energy storage wikipedia , lookup

Potential energy wikipedia , lookup

Low-Income Home Energy Assistance Program wikipedia , lookup

Public schemes for energy efficient refurbishment wikipedia , lookup

Zero-energy building wikipedia , lookup

Low-carbon economy wikipedia , lookup

World energy consumption wikipedia , lookup

Kinetic energy wikipedia , lookup

Regenerative brake wikipedia , lookup

Energy Charter Treaty wikipedia , lookup

Energy policy of Australia wikipedia , lookup

Alternative energy wikipedia , lookup

International Energy Agency wikipedia , lookup

Internal energy wikipedia , lookup

Energy returned on energy invested wikipedia , lookup

Energy policy of the United Kingdom wikipedia , lookup

Energy efficiency in transport wikipedia , lookup

Distributed generation wikipedia , lookup

Energy harvesting wikipedia , lookup

Energy policy of Finland wikipedia , lookup

Life-cycle greenhouse-gas emissions of energy sources wikipedia , lookup

Negawatt power wikipedia , lookup

Energy in the United Kingdom wikipedia , lookup

Energy policy of the European Union wikipedia , lookup

Conservation of energy wikipedia , lookup

United States energy law wikipedia , lookup

Energy efficiency in British housing wikipedia , lookup

Energy Independence and Security Act of 2007 wikipedia , lookup

Energy applications of nanotechnology wikipedia , lookup

Chapter 15
Section 1
Energy and Its Forms
Work and energy are closely related. When
work is done on an object, energy is
transferred to that object.
Many forms of energy can be classified
into two general types: kinetic energy
and potential energy.
•The sun gives off energy in
the forms of heat and light.
•Plants convert sunlight into
food than we can eat.
•People convert food energy
into muscle movement.
Kinetic Energy
The kinetic energy of any moving object
depends upon its mass and speed.
Potential Energy that depends upon an object’s height
is called gravitational potential energy. It increases
when an object is raised to a higher level.
Energy of each type can be converted into other
forms of energy.
Further Examples and Explanation of Energy
• Mechanical energy - the sum (total) of an object’s potential energy and
kinetic energy.
• Thermal energy - really a measure of how fast an object’s atoms are
• Chemical energy - when these bonds are broken, the released energy can
do work.
• Electrical energy - Batteries convert chemical energy to electrical energy.
Lightning is electrical energy.
• Electromagnetic energy - a form of energy that travels through space in the
form of waves. Because they can travel long distances through air and
space, they are often used for communication.
• Nuclear energy - Nuclear power plants use fission – splitting the nuclei of
atoms apart to release energy. The sun uses fusion – two hydrogen nuclei
combine the larger helium nuclei. (A tiny amount of mass is lost in the
process – which produces huge amounts of energy.)