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