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.
Coding of the signal can keep the information secret during transport.
Which of these would be the most reliable method for transmitting waves for communication?(1 point)
Responses
The use of the postal service to mail a letter.
The use of the postal service to mail a letter.
The use of fiber optics to transmit a digital signal.
The use of fiber optics to transmit a digital signal.
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.
Which of these waves would have the greatest amount of energy?
(1 point)
Responses
B
B
There is not enough information.
There is not enough information.
Their energy is equal.
Their energy is equal.
A
Without more information, it is not possible to determine which wave would have the greatest amount of energy.
Elaborate on the difference between the energy of the two waves seen here:
(1 point)
Responses
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 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 A has more energy than Wave B because the wavelength of Wave A is greater.
Wave A has more energy than Wave B because the wavelength of Wave A is greater.
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.
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Wave B has more energy: the amplitude of Wave B is double that of Wave A.
All waves carry(1 point)
Responses
• light.
light.
• particles.
particles.
• energy.
energy.
• matter.
Which of these would be the most reliable method for transmitting waves for communication?(1 point)
Responses
• The use of fiber optics to transmit a digital signal.
The use of fiber optics to transmit a digital signal.
• 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 the postal service to mail a letter.
The use of the postal service to mail a letter.
• The use of printed newspapers and magazines.
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.
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.
• Coding may require more time to record information.
Coding may require more time to record information.
• 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.
Consider any ocean wave. What is the relationship between an ocean wave and the energy of that wave?(1 point)
Responses
• 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.
• Wave energy increases with frequency and decreases with wavelength.
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 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 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 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 more reliable as digital technology was used.
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 storage of information is continuous and captures a more pure sound.
Which of the following secondary sex characteristics do not develop during the teen years?
(1 point)
Responses
development of acne in boys
development of acne in boys
development of body hair in boys
development of body hair in boys
development of breasts in girls
development of breasts in girls
development of ovaries in girls and testes in boys