Question
How do vibrations produce sound? When something vibrates, molecules are compressed, or squeezed together. Then, they are rarefied, or spread out. This creates a wave. The surrounding molecules are compressed and then rarefied. Picture holding the ends of a slinky between two hands. If you compressed the slinky by moving the coils forward in one hand, that compression would travel down the other coils. Those coils would compress and then spread out. The slinky itself wouldn’t go anywhere, but the coils would carry the compression along like a wave. That’s how molecules carry sound energy. The wave that is created is called a compression wave or a longitudinal wave. Ears can detect the vibrations, which the brain processes as sound.
In which detail from the passage does the author transition from describing a concept to using an example to illustrate it?
A
“This creates a wave.”
B
“Picture holding the ends of a slinky between two hands."
C
"Ears can detect the vibrations, which the brain processes as sound."
D
“When something vibrates, molecules are compressed, or squeezed together.
In which detail from the passage does the author transition from describing a concept to using an example to illustrate it?
A
“This creates a wave.”
B
“Picture holding the ends of a slinky between two hands."
C
"Ears can detect the vibrations, which the brain processes as sound."
D
“When something vibrates, molecules are compressed, or squeezed together.
Answers
GPT-4o mini
The detail from the passage where the author transitions from describing a concept to using an example to illustrate it is:
B "Picture holding the ends of a slinky between two hands."
This sentence invites the reader to visualize a practical example (the slinky) to better understand the concept of how vibrations produce sound.
B "Picture holding the ends of a slinky between two hands."
This sentence invites the reader to visualize a practical example (the slinky) to better understand the concept of how vibrations produce sound.