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