The process of changing one form of energy into another
Transduction
100
What is another example of transduction?
A microphone transduces air pressure patterns into corresponding electrical patterns
100
What software program helped the internet explode, making up thousands of individual, and privately owned network that are interconnected with one another ?
MOSIAC (1992-1997)
100
How do cables distribute their signals?
The drop cable is rigid on the outside to protect its elements and in the inside of the house, it isnt to have the flexibility to move it.
100
When Radio waves LOSE their energy as they radiate outward is callled ____?
Attenuation
200
When waves radiate from an antenna, waves radiate outward on the surface of a pond when a rock falls into the water is callled _____?
Propagate
200
What is the secret formula for packet switching?
E= MC^2
200
What remains a primary method for distributing video signals?
Coaxial Cable
200
When the cable system'
the system'
200
What is it called when the viewer receives everything or nothing at all?
"
300
The distance between two corresponding waves.
Wave Length
300
What are the 3 characteristics of electromagnetic energy?
1. Radiating Outward
2. Traveling at the same velocity &
300
What are examples of Transduction?
Radio Broadcasting: 1. changing sound wave energy into electromagnetic. 2. transmitting waves over long distance 3. Changing back electrommagnetic in to sound for humans.
300
What are most broadcasting stations identified by?
Their frequency
300
Amplitude Patterns give you ______.
Frequency Patterns give you _______.
AMP: loudness
FREQ: tones or pitches
400
The shorter the wavelength,.....
The higher the wavelength,...
HIGHER THE FREQUENCY
LOWER THE FREQUENCY
400
What are some digital advantages?
-Extreme simplicity protecting signals from extraneous influences causing distortion.
- Each digital copy is a perfect replica of original.
-Can take apart/reassemble in many varied forms.
400
Carries information light waves and has a high capacity to make them ideal for handling digitally processed information.
Fiber Optic Cable
400
What are some digital disadvantages?
-Digital signals "
400
What is the height or depth of a wave?
Amplitude
500
What is it called when a Radio or TV waves lose energy as they radiate out from an antenna?
Attenuation
500
The number of waves that pass a given point in one second.
Frequency
500
What does FCC do?
They control the licenses, assigned frequencies, operating hours, power, antenna height, design.
500
What attenuates quicker? Higher or Lower frequencies?
Higher Frequencies
500
Broadcasters and the FCC define station radio and TV coverage areas by __________.