Which technology turns recorded waves into numbers that can be stored in a device?
radio
analog
digital
gamma
Which of the following is NOT a benefit of using digital signals?
they can be transmitted over long distances
they can be stored for future recovery
more reliable recordings
recordings maintain their original form
Which of the following is NOT true about digital signals?
They use binary values for data.
They are easier and more reliable to transmit.
They have a faster rate of transmission.
They are replicas of sound waves.
Why are analog signals prone to distortion & decreased transmission quality?
Noise can interrupt the signals.
The amplitude of a wave is too high.
Each phase cannot store enough information.
The frequency of waves changes quickly.
What does the finite range of a digital signal lie between?
a to b
0 to 1
10 to 100
0 to 100
Does this image represent an analog signal or a digital signal?
anlog
anaolg
analog
analg
Digital technology has created huge advancements in science.
True
False
The use of fiber-optics to transmit digital signals has created advances in all of these EXCEPT
computer networking
military & space applications
clothing manufacturing
medicine & surgery
Analog signals are able to carry more information than digital signals.
True
False
Which type of digital signal has been used to advance science & scientific investigations?
digital probes for lab use
faster, worldwide communication
all of these have advanced science
digital transmission of space probes
Which of the following technologies does NOT use wireless digital signals?
AM radio
WiFi connectivity
3G, 4G, LTE
Bluetooth
Which type of signal maintains the quality of that signal or recording?
digitl
digital
digtal
dgital
In which type of technology does the recording of a wave get used in its original form?
digital
radio
gamma
analog
Digital signals have a finite range of values.
True
False
Which type of transmission cable uses light instead of electricity to quickly transmit signals?
fiber-optics
metallic wire
copper wire
modems