WorksheetsSignal and Communication Quiz
Total questions: 25
Worksheet time: 18mins
Which signal is this image an example of?
analog
digital
Which signal is this image an example of?
analog
digital
Which signal is this image an example of?
analog
digital
True or False: This image could be described as pixelated.
True
False
True or False: This image could be described as pixelated.
True
False
Small uniform shapes that are combined to make a larger image.
(a)
Combinations of short (dot) and long (dash) wave pulses that represent letters and numbers
True or False: Noise does not have as large an effect on digital signals because they have defined levels.
True
False
Any unwanted change to a signal
Noise or interference
What makes nearly every form of communication possible?
waves
All waves transfer what?
(a)
Which signal has waves with a step-like appearance?
digital
analog
Which signal can easily correct noise or distortion?
Which signals are more secure and useful for confidential information?
digital
analog
Which signal is more reliable
(a)
Which signal is more likely to have background noise/interference?
(a)
Which signal is best for storing large amounts of data?
(a)
Which signal is shown on this graph?
digital
analog
Which signal is shown on this graph?
digital
analog
Which signal is used in computers and cell phones?
(a)
Which signal can travel long distances without losing its quality?
(a)
What is the name of the code that uses 0's and 1's to transmit information?
(a)
Which value represents a digital signal being off?
(a)
Which value represents a digital signal being on?
(a)
Which signal can only take on the values of 0 or 1?
digital
analog
