Module L Unit 2: Video Quiz

What is a signal?

• A quantity that can represent and convey information

• A type of wave

• A type of device

• A form of energy

Tags

NGSS.HS-PS4-5

NGSS.HS-PS4-3

What are the two types of signals?

• Analog and Binary

• Analog and Digital

• Continuous and Discrete

• Analog and Continuous

How are analog signals represented?

• By on and off pulses

• By binary digits

• By a continuous wave

• By discrete columns

Tags

NGSS.HS-PS4-5

What is the main difference between analog and digital signals?

• Digital signals are smoother

• Analog signals are more complex

• Digital signals are more complex

• Analog signals are smoother

What is the purpose of an analog to digital converter?

• To convert digital signals to analog signals

• To convert analog signals to digital signals

• To amplify the signal

• To protect the signal

What is the purpose of a digital to analog converter?

• To amplify the signal

• To convert digital signals to analog signals

• To convert analog signals to digital signals

• To protect the signal

Tags

NGSS.HS-PS4-5

What is the analog version of listening to music?

• Listening to a vinyl record player

• Listening to a streaming service

• Listening to a digital radio

• Listening to a CD player

What is the digital version of listening to music?

• Listening to a vinyl record player

• Listening to a digital radio

• Listening to a streaming service

• Listening to a CD player

Tags

NGSS.MS-PS4-3

What is the analog version of a telephone?

• Cell phone

• Landline

• Satellite phone

• Smartphone

What is the digital version of a telephone?

• Smartphone

• Satellite phone

• Landline

• Cell phone

Tags

NGSS.HS-PS4-5

NGSS.HS-PS4-2