digital v. analog

This is how analog signal looks like.

• True
• False

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NGSS.MS-PS4-1

Is this digital or analog?

• Digital 
• Analog

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Is this digital or analog?

• Digital 
• Analog

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NGSS.MS-PS4-3

How do computer hard drives and USB drives store data?

• Binary code
• Pictures
• Symbols
• Words

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NGSS.MS-PS4-3

The picture shows an example of what kind of signal?

• Analog

• Digital

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NGSS.MS-PS4-3

Why are digital signals more reliable in transmitting information than analog signals? 

• They are more powerful
• They carry less information
• They have less interference over long distances
• They have more interference over long distances

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NGSS.MS-PS4-3

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

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NGSS.MS-PS4-3

Which is an example of an analog signal?

• Blu-Ray DVD
• VHS Tape

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NGSS.MS-PS4-3

Which is an example of an analog signal?

• Record Player
• CD Player

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NGSS.MS-PS4-3

What kind a wave is pictured?

• Analog wave

• Digital wave

• Radiowave

• Microwave

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