Download Energy

Energy
Types & Forms
What is Energy?
• The ability to do work
Types of Energy
Potential vs. Kinetic
• Potential Energy
– Stored energy
• Kinetic Energy
– Energy of motion
Forms of Energy
Mechanical Energy
• The total energy of motion and position of an
object
– Mechanical energy = potential + kinetic
– Examples: rollercoaster, juggling
Thermal Energy
• All of the kinetic energy due to random
motion of particles that make up an object
– Depends on speed & number of particles
– Examples: boiling water, rubbing hands together
Chemical Energy
• Energy stored in the bonds of atoms &
molecules
– Examples: baking soda, fossil fuels
Electrical Energy
• Energy of moving electrons
– Electrons are negatively charged particles
– Examples: appliances
Sound/Acoustic Energy
• Energy caused by the vibrations of an object
– Examples: guitar, speakers
Light/Radiant Energy
• Energy produced by the vibrations of
electrically charged particles
– Examples: sun, microwave, radio waves
Nuclear Energy
• Energy that comes from changes in the
nucleus of an atom
– Examples: sun, uranium, hydrogen
Magnetic Energy
• Energy from the attraction of objects made of
iron
– Examples: magnets, generators