Sound Waves Study Guide
Flashcard
•
Science
•
4th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What are the three main parts of the human ear?
Back
Outer ear, middle ear, inner ear.
2.
FLASHCARD QUESTION
Front
What is the function of the outer ear?
Back
The outer ear collects sound waves and directs them into the ear canal.
3.
FLASHCARD QUESTION
Front
What is the role of the eardrum in hearing?
Back
The eardrum vibrates when sound waves hit it, converting sound energy into mechanical energy.
Tags
NGSS.MS-PS4-1
4.
FLASHCARD QUESTION
Front
What is the middle ear composed of?
Back
The middle ear contains three small bones called the ossicles: the malleus, incus, and stapes.
5.
FLASHCARD QUESTION
Front
What is the function of the ossicles?
Back
The ossicles amplify and transmit sound vibrations from the eardrum to the inner ear.
6.
FLASHCARD QUESTION
Front
What is the term for the lowest point of a sound wave?
Back
Trough.
7.
FLASHCARD QUESTION
Front
What is the difference between frequency and amplitude in sound waves?
Back
Frequency refers to the number of waves that pass a point in a given time, while amplitude refers to the height of the wave, which determines loudness.
Tags
NGSS.MS-PS4-1
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