Download Types of Energy - Plain Local Schools

December 10, 2014
12/10/14
Bellringer:
What is ENERGY?
List some different kinds of energy (7)
Types of Energy
Potential Energy
Kinetic Energy
December 10, 2014
Potential Energy
Gravitational Potential Energy: energy
due to an objects height above the
ground
Elastic Potential Energy: energy from
the ability to be "stretched"
Chemical Potential Energy: energy due
to the bonding of chemicals
Key Points: Potential Energy
1. The more mass an object has, the
greater the potential energy.
2. The higher the object is above the
ground, the greater the potential
energy.
December 10, 2014
Which has the greatest potential
energy?
Figure A
Figure B
Which has the greatest potential
energy?
Figure A
Figure B
December 10, 2014
Kinetic Energy:
Energy of motion
Forms of Kinetic Energy:
- Chemical
- Electrical
- Radiant (Light)
- Mechanical
- Nuclear
- Thermal (Heat)
- Sound
Chemical Energy:
Energy stored in the bonds
between atoms in molecules
Examples: batteries, food, chemicals, fuels,
photosynthesis
December 10, 2014
Electrical Energy:
Energy carried by moving
electrons forced along a path
Examples: Electricity, lightning
Radiant Energy:
Electromagnetic energy that
travels in waves.
Examples: visible light, infrared
radiation, microwaves, radio waves,
gamma rays, ultraviolet radiation
December 10, 2014
Mechanical Energy:
Energy of motion (involves
both potential and kinetic
energy)
Examples: throwing a ball, moving a
pencil to write on a paper, using a
hammer
Nuclear Energy:
Occurs when the nuclei of
uranium atoms are changed.
December 10, 2014
Thermal Energy:
Is the energy a substance or
system has related to its
temperature (the energy of
moving or vibrating molecules)
Examples: Heat for our homes, heat to
cook food
Sound Energy:
Relates to the repetitive
compression and rarefraction
of molecules in a substance
Examples: music