ELi5: What is the difference between analog and digital signals?

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Or at least “explain it like I am an 8th grader.” I am a middle school science teacher and am struggling with explaining these concepts in a simplified way that my students can understand. They have some prior knowledge about waves and how they travel. I appreciate any help you can provide!

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Anonymous 0 Comments

Think of it like light switches.

A digital signal is either off or on. There’s voltage on the line or there isn’t.

An analog signal is like a dimmer switch. You can put any voltage on the line and it will have a discrete effect.

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