PS4.C - Informational Technologies - Level 3 Question Preview (ID: 63074)


PS4.C - Informational Technologies - Level 3. TEACHERS: click here for quick copy question ID numbers.

A way of representing information using only two options 0s and 1s.
a) binary
b) analog
c) sonar
d) pressure wave

A communications medium consisting of thousands of very thin filaments of glass fibers that transmit information via light pulses generated by lasers.
a) fiber optic cables
b) sonar
c) electromagnetic spectrum
d) voltage

the part of the electromagnetic spectrum that consists of waves with the lowest frequencies
a) radio waves
b) x-rays
c) visible light
d) microwaves

Converting a continuous value to numeric values.
a) digitized
b) analog
c) quantitative
d) data

the processing of information so that it can be stored
a) encode
b) decode
c) transmit
d) data

continuous wave that vary in strength and quality
a) analog signals
b) digital signals
c) binary signals
d) all of the answer choices

discrete pulses that are either on or off, representing a series of bits of 1s and 0s
a) digital signals
b) analog signals
c) binary signals
d) all of the answer choices

Technology that detects submerged objects by means of sound waves
a) sonar
b) x-rays
c) ultrasound
d) fiber optic cables

Electromagnetic radiation having a very short wavelength; can penetrate substances such as skin and muscle.
a) x-rays
b) radio waves
c) microwaves
d) ultraviolet waves

All of the frequencies or wavelengths of electromagnetic radiation
a) electromagnetic spectrum
b) radio waves
c) x-rays
d) digitized

the rate at which something occurs or is repeated over a particular period of time or in a given sample such as a wave
a) frequencies
b) amplitude
c) wavelength
d) voltage

the passage of light through an object
a) transmission
b) voltage
c) waves
d) ultrasound

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