8.2.6 Analog vs. Digital

Front

What is an analog signal?

Back

An analog signal is a continuous signal that represents physical measurements. It can take on any value within a range.

Tags

NGSS.HS-PS4-5

Front

What is a digital signal?

Back

A digital signal is a discrete signal that represents data as binary values (0s and 1s). It can only take on specific values.

Tags

NGSS.MS-PS4-3

Front

Give an example of an analog device.

Back

A record player is an example of an analog device.

Tags

NGSS.MS-PS4-3

Front

Give an example of a digital device.

Back

A CD player is an example of a digital device.

Tags

NGSS.HS-PS4-2

NGSS.HS-PS4-5

Front

What does 'smooth and continuous data' refer to?

Back

Smooth and continuous data refers to analog signals.

Front

What does 'discrete data' refer to?

Back

Discrete data refers to digital signals.

Front

How can a signal be transmitted?

Back

A signal can be transmitted through tone, light, electric pulses, or all of the above.

Tags

NGSS.HS-PS4-5

Front

What is the main difference between analog and digital signals?

Back

The main difference is that analog signals are continuous, while digital signals are discrete.

Tags

NGSS.HS-PS4-2

Front

What is an example of a medium that uses analog signals?

Back

A VHS tape is an example of a medium that uses analog signals.

Front

What is an example of a medium that uses digital signals?

Back

A Blu-Ray DVD is an example of a medium that uses digital signals.

Tags

NGSS.HS-PS4-2

NGSS.HS-PS4-5