Information Technology

Front

What is a digital signal?

Back

A digital signal is a type of signal that represents data as discrete values, typically in binary code (0s and 1s).

Tags

NGSS.MS-PS4-3

Front

What is an analog signal?

Back

An analog signal is a type of signal that changes continuously and can take on any value within a given range.

Tags

NGSS.MS-PS4-3

Front

Give an example of an analog signal.

Back

VHS Tape is an example of an analog signal.

Tags

NGSS.MS-PS4-3

Front

What is binary code?

Back

Binary code is a system of representing text or computer processor instructions using the binary number system, which uses only two symbols: 0 and 1.

Tags

NGSS.MS-PS4-3

Front

What is the main disadvantage of using radio waves for communication?

Back

Radio waves lose energy as they travel through mediums.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Front

Are radio waves an example of a digital signal?

Back

No, radio waves are not a digital signal; they are an analog signal.

Tags

NGSS.MS-PS4-3

Front

What does it mean for a signal to change continuously?

Back

It means that the signal can take on any value within a range, characteristic of analog signals.

Tags

NGSS.MS-PS4-3

Front

How do hard drives and USB drives store data?

Back

They store data using binary code.

Front

What is the difference between digital and analog signals?

Back

Digital signals represent data in discrete values, while analog signals represent data in continuous values.

Tags

NGSS.MS-PS4-3

Front

What is an example of a digital storage medium?

Back

Blu-Ray DVD is an example of a digital storage medium.