mrs. trotter vian middle school science. mechanical electrical chemical sound thermal radiant
TRANSCRIPT
Energy ConversionMrs. Trotter
Vian Middle School Science
Energy can take many forms..
Mechanical Electrical chemical sound thermal radiant
Today we will talk about Mechanical Energy
It takes on two forms• Kinetic• Potential
Kinetic Energy The energy of an object in motion
The amount of kinetic energy an object has depends on two factors Speed (or velocity) at which the object
is moving The mass of the object
Heavier objects will have more kinetic energy than lighter objects
Potential Energy Described as stored energy
• energy is stored by doing work against a force like gravity
• Also, the amount of potential energy can increase with mass
A rubber band pulled back at 10 cm will have greater potential energy than one that is pulled back at only 5 cm
THE MORE WORK YOU USE- THE MORE POTENTIAL
ENERGY THE OBJECT WILL HAVE
Conservation of Energy Remember that energy cannot be
created nor destroyed It will just change to other forms
If energy is not created or lost during a transformation~ where does all energy come from??? Remember that the Sun is the source
of almost all energy on the Earth
Buckle Down Books turn to page 89