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