Unit 3 Test Review

What is a key characteristic of analog signals?

• They can only take on binary values

• They have infinite possible values

• They are always digital in nature

• They never degrade over distance

Tags

NGSS.MS-PS4-3

Which signal type is primarily used in modern computers?

• Natural signals

• Continuous signals

• Digital signals

• Wave signals

Tags

NGSS.MS-PS4-3

What type of signal would a vinyl record use?

• Electronic signal

• Binary signal

• Digital signal

• Analog signal

Tags

NGSS.MS-PS4-3

What is an advantage of digital storage?

• It can be compressed

• It needs constant power

• It requires more space

• It can't be copied

Tags

NGSS.MS-PS4-3

How are human voices naturally categorized?

• Bionic signals

• Analog signals

• Binary signals

• Digital signals

Tags

NGSS.MS-PS4-3

What is a disadvantage of digital signals?

• Cannot be stored

• Cannot be encrypted

• Always low quality

• More complex systems

Tags

NGSS.MS-PS4-3

Which best describes digital signals' appearance?

• Curved and smooth

• Random patterns

• Step-like appearance

• Circular patterns

Tags

NGSS.HS-PS4-2

NGSS.HS-PS4-5

Digital signals are characterized by:

• Continuous waves

• Infinite values

• Binary values

• Natural frequencies

Tags

NGSS.MS-PS4-3

What property of the wave is represented by the letter "A"?

• Amplitude

• Wavelength

• Trough

• Crest

Tags

NGSS.MS-PS4-1

A single disturbance that moves through a medium.

• Digital Signal

• Amplitude

• Mechanical Wave

• Wave Pulse