Analog and Digital

What is true about a digital signal?

• They are easily distorted or affected by interference
• They take up more space
• They require more information
• They are generally considered more reliable

Tags

NGSS.HS-PS4-2

Why are digital signals used by most modern electronics?

• They can be interpreted in multiple ways
• They need more power
• They can only be interpreted in one way
• They require more space

Identify the example of a digital device or signal below:

• Computer chip
• Human voice
• Drum
• Radio signal

Tags

NGSS.HS-PS4-2

NGSS.HS-PS4-5

A signal is a way to transmit ________________ by means of gesture,action, sound, or other means.

• money
• information
• time
• light

How can a signal be transmitted?

• Tone
• Light
• Electric Pulses
• All of the Above

An analog signal can have...

• a binary code
• 0,1
• two values
• infinite values

Which of the following is an example of a digital signal?

• Mercury Thermometer
• VHS Tape
• Blu-Ray
• Analog Clock

What was the first type of signal used?

• Analog
• Digital

Which of the following is an advantage of digital signals?

• They are low cost
• They carry more detailed information
• More Compact
• Often Higher Quality

Tags

NGSS.HS-PS4-2

Which of the following is an advantage of analog signals

• Less prone to interference
• Requires less power
• Travels Farther
• Carries more detailed information