Definitions
Stored Energy
Potential Energy
Two negative charges interact by
Repelling each other
Most common waves
Electromagnetic and Mechanical Waves
Stretching a Rubber Band
Elastic Potential Energy
Doing work....
Moving a box, riding a bike, moving your body to exercise
Kinetic Energy
Energy due to motion
Generators are...
Machines that transform mechanical energy to electric energy.
Crest
Top of a Wave
What is a EXAMPLE Gravitational Potential Energy?
A Roller Coaster at the Top of a Hill
A loss of an unbalances electrical charge
Electric Discharge
Electric Discharge
A loss of an unbalanced electrical charge
Insulator and example
A material in which electrons cannot move easily
EX: wood
Bottom of a Wave
Trough
Energy Stored in Chemical Bonds
Chemical Potential Energy
Intensity
Used to measure brightness
A material in which electrons can move easily.
An example
Conductor
Example: Metal
The push or pull a magnet applied to another magnet
Magnetic Force
Sounds Waves Pass through Matter is....
Transmission
Potential Energy
Stored Energy
Sound Waves Pass through Matter
The force that two electrically charged objects apply to each other
Electric Force
How does sound go from....
Sound energy - Electrical energy - Sound energy
a. The principal's stored energy is transferred to SOUND energy - to talk on the phone.
b. The sound energy is the transferred to ELECTRICAL energy when is passes through the phone
c. The electrical energy is then transferred back to SOUND energy when your mom is talking back into the phone
Why do people wear sunglasses?
To ABSORB the light waves so they don't get in our eyes.
Examples of....
Opaque...
Translucent....
Transparent...
Opaque: A book
Translucent: Tissue paper
Transparent: Glass
Electric Current
The movement of electrically charger particles