Digital Electronics Final

Which of the following is a digital quantity?

• Altitude of an aircraft

• Pressure in a bicycle tire

• Number of atoms in a sample

• Current through a speaker

Convert the binary number 11001 to decimal:

• A) 25

• B) 19

• C) 31

• D) 17

Convert the binary number 1001.1001 to decimal:

• 9.625

• 10.25

• 9.5

• 8.75

How many fundamental states exist in a digital system?

• 4

• 8

• 2

• 16

What is a graph showing changes between two binary states over time called?

• State diagram

• Bar graph

• Logic table

• Timing diagram

What are the two binary states of a telegraph system?

• Start and Stop

• Pulse and Pause

• Dot and Dash

• On and Off

Which property of an audio waveform affects loudness?

• Frequency

• Amplitude

• Pitch

• Duration

Tags

NGSS.MS-PS4-1

Which property of an audio waveform affects pitch?

• Frequency

• Amplitude

• Loudness

• Wavelength

Tags

NGSS.HS-PS4-1

Discrete steps represent which kind of data?

• Analog

• Digital

• Hybrid

• Sine wave

A continuously variable signal is:

• Binary

• Digital

• Analog

• Encoded