What is the primary advantage of using digital devices to study waves?(1 point)
Responses
They can only measure one type of wave
They can only measure one type of wave
They are cheaper than analog devices
They are cheaper than analog devices
They allow for more accurate measurements and analysis
They allow for more accurate measurements and analysis
How does a digital device help improve our understanding of wave transmission? (1 point)
Responses
By allowing visualization, manipulation, and analysis of wave data
By allowing visualization, manipulation, and analysis of wave data
By creating physical barriers for waves
By creating physical barriers for waves
By converting analog signals into digital ones
By allowing visualization, manipulation, and analysis of wave data
A two-way radio set, like a walkie-talkie, usually works with an analog signal rather than a digital signal. What is the disadvantage of this device?(1 point)
Responses
The analog walkie-talkie is likely to be more expensive.
The analog walkie-talkie is likely to be more expensive.
The analog walkie-talkie has less noise.
The analog walkie-talkie has less noise.
The analog walkie-talkie is more difficult to use.
The analog walkie-talkie is more difficult to use.
The analog walkie-talkie is not as clear.
The analog walkie-talkie is not as clear.
Which of the following options is the most dependable approach for transmitting waves to facilitate communication?(1 point)
Responses
Employing a series of knocks on all the doors in the neighborhood.
Employing a series of knocks on all the doors in the neighborhood.
Utilizing printed newspapers and magazines.
Utilizing printed newspapers and magazines.
Sending a letter through the postal service.
Sending a letter through the postal service.
Employing fiber optics to transmit a digital signal.
Employing fiber optics to transmit a digital signal.
Employing fiber optics to transmit a digital signal.
What is a benefit of digitally storing information compared to analog?(1 point)
Responses
Sound can be recorded using either digital or analog methods.
Sound can be recorded using either digital or analog methods.
Analog information storage is continuous and captures a clearer sound.
Analog information storage is continuous and captures a clearer sound.
Replicating an analog file is never as accurate as its original version.
Replicating an analog file is never as accurate as its original version.
Digital storage requires less bandwidth or storage space than analog.
Digital storage requires less bandwidth or storage space than analog.
Digital storage requires less bandwidth or storage space than analog.
Which statement accurately describes the difference between digital and analog information?(1 point)
Responses
Digital information is like using steps, while analog is like a smooth flow.
Digital information is like using steps, while analog is like a smooth flow.
Digital information is continuous and smooth, while analog is discrete.
Digital information is continuous and smooth, while analog is discrete.
Digital information is represented by waves, while analog information is represented by light.
Digital information is represented by waves, while analog information is represented by light.
Digital information is more at risk of being interrupted by interference than analog information.
Digital information is like using steps, while analog is like a smooth flow.
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.
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.
Wave energy is directly proportional to the amplitude of the wave.
Elaborate on the difference between the energy of the two waves seen here:
(1 point)
Responses
Wave energy is directly proportional to frequency and wavelength, therefore Wave A has more energy.
Wave energy is directly proportional to frequency and wavelength, therefore Wave A has more energy.
Wave B has more energy: the amplitude of Wave B is double that of Wave A.
Wave B has more energy: the amplitude of Wave B is double that of Wave A.
Wave B has more energy than Wave A because the frequency of Wave B is greater.
Wave B has more energy than Wave A because the frequency of Wave B is greater.
Wave A has more energy than Wave B because the wavelength of Wave A is greater.
Based on the information provided, we cannot determine the difference in energy between the two waves without additional information. The options presented do not provide sufficient criteria to compare the energy of Wave A and Wave B accurately.
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 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.
The relay of information became more reliable as digital technology was used.
The quality of the information became less reliable as more digital technology was used.