Complete each of the. following sentences by choosing the correct term from the word bank.
loudness, echoes, pitch, noise, solids, sound quality, vibrations, wavelength frequency, wave, vacuum, amplitude, lesser, infrasonics, ultrasonics
Reflected sound waves are called ___________.

Explanation

To complete the sentence "Reflected sound waves are called ___________," we need to identify the correct term from the provided word bank.

1. **Understanding the Concept**: Reflected sound waves refer to sound that bounces off a surface and returns to the listener. This phenomenon occurs when sound waves encounter a barrier or surface.

2. **Identifying the Correct Term**: From the word bank, we need to find a term that specifically describes reflected sound waves. The options provided include: loudness, echoes, pitch, noise, solids, sound quality, vibrations, wavelength, frequency, wave, vacuum, amplitude, lesser, infrasonics, ultrasonics.

3. **Choosing the Right Answer**: The term that best fits the definition of reflected sound waves is "echoes." An echo is the sound that is reflected off a surface and heard again.

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