Question

4 matching 3 points match the right definition with the right word. speed of sound medium echo hearing range interference frequency doppler effect number of waves that pass a point in 1 second amplitude decibels the type of matter that sound can travel through sound waves hit a hard flat surface and reflects back how fast sound travels through different types of matter - example water is 1482 m/s for humans 20 hz to 20,000 hz other species can be higher or lower

Explanation:

To solve this matching problem, we analyze each term and its corresponding definition:

1. speed of sound: Matches "how fast sound travels through different types of matter - example water is 1482 m/s" (describes the speed of sound in a medium).
2. medium: Matches "the type of matter that sound can travel through" (defines the medium for sound propagation).
3. echo: Matches "sound waves hit a hard flat surface and reflects back" (definition of an echo).
4. hearing range: Matches "for humans 20 Hz to 20,000 Hz other species can be higher or lower" (describes the range of frequencies humans (and others) can hear).
5. interference: (Not matched in the selected option here, but for the given blue - highlighted "number of waves that pass a point in 1 second")
6. frequency: Matches "number of waves that pass a point in 1 second" (standard definition of frequency).

Final Matches:

• speed of sound → how fast sound travels through different types of matter - example water is 1482 m/s
• medium → the type of matter that sound can travel through
• echo → sound waves hit a hard flat surface and reflects back
• hearing range → for humans 20 Hz to 20,000 Hz other species can be higher or lower
• frequency → number of waves that pass a point in 1 second

(For the specific blue - highlighted "number of waves that pass a point in 1 second", it matches "frequency".)

Answer:

To solve this matching problem, we analyze each term and its corresponding definition:

1. speed of sound: Matches "how fast sound travels through different types of matter - example water is 1482 m/s" (describes the speed of sound in a medium).
2. medium: Matches "the type of matter that sound can travel through" (defines the medium for sound propagation).
3. echo: Matches "sound waves hit a hard flat surface and reflects back" (definition of an echo).
4. hearing range: Matches "for humans 20 Hz to 20,000 Hz other species can be higher or lower" (describes the range of frequencies humans (and others) can hear).
5. interference: (Not matched in the selected option here, but for the given blue - highlighted "number of waves that pass a point in 1 second")
6. frequency: Matches "number of waves that pass a point in 1 second" (standard definition of frequency).

Final Matches:

• speed of sound → how fast sound travels through different types of matter - example water is 1482 m/s
• medium → the type of matter that sound can travel through
• echo → sound waves hit a hard flat surface and reflects back
• hearing range → for humans 20 Hz to 20,000 Hz other species can be higher or lower
• frequency → number of waves that pass a point in 1 second

(For the specific blue - highlighted "number of waves that pass a point in 1 second", it matches "frequency".)