Page 81 - Science Course 3 (Book 2)

Mo10-L4: Lesson Review Quiz (Multiple Choice)

Direction: On the line before each question or statement, write the letter of the correct answer

1. The decibel is used to measure a sound’s
A. pitch.
B. loudness.
C. frequency.
2. A loud sound is produced by a sound wave with a _______________ amplitude.
A. low
B. high
C. decreasing
3. Sound waves are produced by ________________ in matter.
A. echoes
B. vibrations
C. changes in state
4. A sound wave is a series of compressions and
A. echoes.
B. troughs.
C. rarefactions.
5. Sound waves with a greater frequency have a higher
A. pitch.
B. volume.
C. amplitude.

Mo10-L4: Lesson Review Quiz (Matching)

Direction: On the line before each def nition, write the letter of the term that matches it correctly.
Each term is used only once.

A. eardrum
6. collects and channels sound waves into the ear
B. middle ear bones
7. hammer, anvil, stirrup
C. outer ear function
8. amplif es sound D. cochlea

9. converts vibrations to nerve signals E. middle ear function

10. membrane that picks up vibrations from the ear canal

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