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Questions and Answers
What do sound waves show about the health and shape of body parts?
What do sound waves show about the health and shape of body parts?
- The color of the body parts
- The health and shape of the body parts (correct)
- The smell of the body parts
- The texture of the body parts
How do dentists use sound waves to clean teeth?
How do dentists use sound waves to clean teeth?
- To remove plaque and grime from teeth (correct)
- To change the color of teeth
- To strengthen the teeth
- To remove bacteria from teeth
What determines the pitch or how high or low something sounds?
What determines the pitch or how high or low something sounds?
- The color of the sound waves
- The distance from the source of the sound
- The size of the sound waves
- The speed that the sound waves travel (correct)
What happens to sound waves' vibrations as they travel away from the source of the sound?
What happens to sound waves' vibrations as they travel away from the source of the sound?
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What is responsible for sending a signal to your brain to hear a sound when sound waves enter your ear?
What is responsible for sending a signal to your brain to hear a sound when sound waves enter your ear?
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Study Notes
What Are Sound Waves?
- Sound waves are vibrating energy that resemble waves, made up of microscopic building blocks called molecules.
- They travel back and forth through solids, liquids, and gases to reach another location.
- This allows us to hear sounds that are close to us, outside, or even underwater.
Characteristics of Sound Waves
- Sound waves can be felt physically, as demonstrated by the strong vibrations from instruments at a parade or football game.
- The speed of vibration determines the type of sound produced.
Importance of Sound Waves
- Sound waves are crucial for animals, such as bats, which use echolocation and sound wave vibrations to navigate their surroundings.
- Humans rely on sound waves to communicate important ideas and emotions.
- Sound waves play a vital role in warning systems, like ambulance sirens and fire alarms, which alert us to potential dangers.
- In medicine, sound waves are used in ultrasounds to visualize the inside of the body.
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