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