Which of these would be the most reliable method for transmitting waves for communication?(1 point)
Responses
The use of printed newspapers and magazines.
The use of printed newspapers and magazines.
The use of knocking on all the doors in the neighborhood.
The use of knocking on all the doors in the neighborhood.
The use of fiber optics to transmit a digital signal.
The use of fiber optics to transmit a digital signal.
The use of the postal service to mail a letter.
The use of fiber optics to transmit a digital signal.
Letter D represents the __________ of the wave.
(1 point)
Responses
crest
crest
amplitude
amplitude
wavelength
wavelength
frequency
wavelength
All waves carry(1 point)
Responses
particles.
particles.
light.
light.
energy.
energy.
matter.
energy
Which of these is an advantage of digital storage of information over analog?(1 point)
Responses
Sound can be recorded either digitally or using analog techniques.
Sound can be recorded either digitally or using analog techniques.
Analog signals take up less bandwidth or storage space than digital.
Analog signals take up less bandwidth or storage space than digital.
A copy of an analog file is never as good as its original.
A copy of an analog file is never as good as its original.
Analog storage of information is continuous and captures a more pure sound.
Analog signals take up less bandwidth or storage space than digital.
Digital recording and transmission often requires the signal to be transmitted using a code. Which statement would suggest an advantage of this fact?(1 point)
Responses
Coded information may require larger bandwidth to transmit.
Coded information may require larger bandwidth to transmit.
Coding of the signal can keep the information secret during transport.
Coding of the signal can keep the information secret during transport.
Coding requires all users to have a method to decode information.
Coding requires all users to have a method to decode information.
Coding may require more time to record information.
Coding of the signal can keep the information secret during transport.
Which of these waves would have the greatest amount of energy?
(1 point)
Responses
A
A
B
B
Their energy is equal.
Their energy is equal.
There is not enough information.