Circuits
The measure of how hard it is for current to flow through an object is called_______________?
(What is) resistance?
Wifi routers use this type of electromagnetic waves to transmit digital signals.
What are radio waves.
This type of signal represents data as a sequence of discrete values.
What is a digital signal?
Allows for the continuous record of some kind of action.
What are analog signals?
Represents text, computer processor instructions, or any other data using a two-symbol system.
What is binary code?
This is a complete unbroken path that electric charges can flow through.
What is a circuit? (electrical circuit)
Fiber optic cables use this type of electromagnetic wave to transmit digital signals.
What are (visible) light waves?
Refers to how often a signal is recorded or converted to a digital code
What is sampling rate?
This is a disadvantage of analog signals.
*takes up more space
*easier to damage/distort
*difficult to encode and transmit without error
These are the two numbers used most often in binary code
What are 0 and 1?
The difference in electrical potential energy per charge between two points in a circuit.
Modern cell phones use this type of electromagnetic wave to communicate information, which is a higher frequency than the radio waves older cell phones used.
What are microwaves?
When sampling rate ____________, the closer the digital signal will resemble the analog signal.
What is increases?
This is used to store analog sound signals.
What are Vinyl Records?
In binary code, this number represents "off".
What is 0?
When the diameter of a resistor decreases, the amount of resistance ________________.
What is increases?
TV remote controls use this type of electromagnetic wave to send information.
What are infrared waves?
the file size is larger
When an analog signal is transmitted, it can incorporate ___________, which are random signals from the environment.
What is noise? (also will accept static, distortions, errors)
Binary code is used in these type of signals.
What are digital signals?
The current of a circuit that has a voltage of 6 volts and a resistance of 12 ohms.
What is 0.5 amps(A)?
This type of signal travels at the speed of light.
What are electromagnetic signals?
Small uniform shapes that are combined to make a larger digital image.
What are pixels?
Cell phones use these types of signals to communicate information.
What are digital signals (or electromagnetic signals)?
This is the 8 bit binary code for the letter a.
What is 01100001?