Digital vs Analog Quiz w/ Video

What is a core part of modern engineering and the world as we know it?

• Creating computer files

• Recording and transmitting information

• Designing communication channels

• Building hardware

Tags

NGSS.HS-PS4-5

What are representations of the information we're sending when we communicate?

• Electromagnetic waves

• All of the above

• Sounds and computer files

• Text and images

Tags

NGSS.HS-PS4-2

NGSS.HS-PS4-5

What is the basic task of signal processing?

• Transmitting information

• Converting content into a signal

• Receiving signals

• All of the above

Tags

NGSS.HS-PS4-5

What is the name of the machine that received the electric current and marked a piece of paper in Samuel Morse's telegraph?

• Amplitude Modulation

• Key

• Register

• Transducer

What are input transducers used for in signal processing?

• Converting physical information into a signal

• Converting light and sound into electrical signals

• Converting signals into computer files

• Converting electrical signals into sound and light

Tags

NGSS.HS-PS3-3

NGSS.HS-PS4-5

What is the main limitation of radio waves for transmitting signals?

• All of the above

• Capacity

• Noise

• Bandwidth

What did Claude Shannon develop a mathematical formula for?

• Measuring the bandwidth of a channel

• Calculating the power of the signal

• Determining the number of bits you can transmit per second

• Quantifying the noise in a channel

Tags

NGSS.HS-PS4-2

What is the main advantage of digital signals over analog signals?

• They can transmit signals faster

• They have wider bandwidth

• They are less susceptible to noise

• They have higher capacity

Tags

NGSS.HS-PS4-2

What did Morse code represent in terms of communication?

• Continuous variation of a wave

• Distinct states of the signal

• Digital signals

• Analog signals

Tags

NGSS.MS-PS4-3

What did Claude Shannon's work allow computer scientists and electrical engineers to do?

• Develop digital signaling

• Quantify the noise in a channel

• Increase the bandwidth of a channel

• Improve the capacity of analog signals

Tags

NGSS.HS-PS4-2