Volume: Loud & Soft Sounds

ECHO ARENA · ECHOLING

Volume: Loud & Soft Sounds

Whisper Tunnel

Learn with Echoling, then use your clues in the adventure. Pause whenever you need time to read or think.

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Train more: lesson transcript and free resources

Echoling — Volume: Loud & Soft Sounds Whisper Tunnel

Hi!

I'm Echoling.

Welcome to Whisper Tunnel!

Will you help me investigate volume: loud & soft sounds?

The Grumblies have mixed up our clues.

Let's check the evidence!

Loudness relates to the strength of vibrations reaching a listener,

among other factors.

Larger vibration amplitude generally produces a louder sound under comparable conditions.

Which trial is louder here?

  • A. A
  • B. The weaker trial
  • C. Both are equally loud in the record

The answer is A: A

Our record keeps vibration rate the same

but uses a stronger vibration in Trial A.

A is louder in the record, while the pitch stays the same.

That clue helps us make sense of this place.

Distance and surroundings also matter.

Moving farther from a source often makes the received sound quieter;

this does not necessarily change its pitch.

Which property stays the same with unchanged vibration rate?

  • A. Every sound's loudness
  • B. The listener's name
  • C. Pitch

The answer is C: Pitch

Our record keeps vibration rate the same

but uses a stronger vibration in Trial A.

A is louder in the record, while the pitch stays the same.

Hmm...

how does that connect to our first clue?

Our record keeps vibration rate the same

but uses a stronger vibration in Trial A.

A is louder in the record, while the pitch stays the same.

What often happens farther from the source?

  • A. The source must change its rate
  • B. The received sound is quieter
  • C. Pitch must always increase

The answer is B: The received sound is quieter

Distance and surroundings also matter.

Moving farther from a source often makes the received sound quieter;

this does not necessarily change its pitch.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Loudness relates to the strength of vibrations reaching a listener,

among other factors.

Distance and surroundings also matter.

Our record keeps vibration rate the same

but uses a stronger vibration in Trial A.

You're ready to explore Whisper Tunnel with me!

Choose TRAIN MORE if you'd like another look at the clues.

Choose START ADVENTURE when you're ready.

I'll be right here!

Or choose BACK TO MAP.

Every stop is open to explore!

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