Sound Waves and Hearing

Sound Waves and Hearing

Assessment

Flashcard

Science

8th Grade

Hard

Created by

Helen Forbes

FREE Resource

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5 questions

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1.

FLASHCARD QUESTION

Front

Ultrasonic

Back

Sound waves with a frequency too high to be heard by the normal human ear (above 20,000 hertz).

2.

FLASHCARD QUESTION

Front

Infrasonic

Back

Sound waves with a frequency too low to be heard by the normal human ear (below 20 hertz).

3.

FLASHCARD QUESTION

Front

Decibel

Back

A unit used to measure the intensity of a sound or the power level of an electrical signal.

4.

FLASHCARD QUESTION

Front

Pinna

Back

The part of the ear that collects sound waves.

5.

FLASHCARD QUESTION

Front

Hertz

Back

A unit of time to measure frequency.