All waves carry: (1 point)
Responses
light
light
energy
energy
particles
particles
matter
BOT
energy
Examine the timeline of relaying information to other people over the past few hundred years.
Pony Express, US Postal Mail, Fax Machine, Digital Image Submission
Which statement explains the reasons for this progression in information delivery?
(1 point)
Responses
The storage of information became more difficult as more digital technology was used.
The storage of information became more difficult as more digital technology was used.
The quality of the information became less reliable as more digital technology was used.
The quality of the information became less reliable as more digital technology was used.
The relay of information became more reliable as digital technology was used.
The relay of information became more reliable as digital technology was used.
The relay of information became less trustworthy as more digital technology was used.
The relay of information became less trustworthy as more digital technology was used.
The relay of information became more reliable as digital technology was used.
We know that waves transmit energy. There are many types of waves: light, microwaves, x-rays, sound waves, and ocean waves are all examples of waves transferring energy. Ocean waves are a renewable energy source that uses the energy of the waves to generate electricity.
Consider any ocean wave. What is the relationship between an ocean wave and the energy of that wave?
(1 point)
Responses
Wave energy increases with frequency and decreases with wavelength.
Wave energy increases with frequency and decreases with wavelength.
Wave energy is directly proportional to the amplitude of the wave.
Wave energy is directly proportional to the amplitude of the wave.
The greater the wavelength, the more kinetic energy the wave has.
The greater the wavelength, the more kinetic energy the wave has.
Wave energy decreases as the wave moves closer to shore.
Wave energy decreases as the wave moves closer to shore.
The greater the wavelength, the more kinetic energy the wave has.
Letter D represents the ________ of the wave.
(1 point)
Responses
crest
crest
frequency
frequency
amplitude
amplitude
wavelength
wavelength
Which of these is an advantage of digital storage of information over analog?(1 point)
Responses
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.
Sound can be recorded either digitally or using analog techniques.
Sound can be recorded either digitally or using analog techniques.
Analog storage of information is continuous and captures a more pure sound.
Analog storage of information is continuous and captures a more pure sound.
Analog signals take up less bandwidth or storage space than digital.
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
Coding of the signal can keep the information secret during transport.
Coding of the signal can keep the information secret during transport.
Coded information may require larger bandwidth to transmit.
Coded information may require larger bandwidth to transmit.
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.