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4 Terms

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Why is it that sound waves can propagate through air without moving air itself from one place to another?
Sound waves involve the disturbance of air particles, which compress and vibrate, transferring energy without large-scale movement of the air itself.
2
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How do sound waves create regions of compression and rarefaction?
Vibrating objects disturb nearby air particles, causing them to compress and vibrate, leading to energy transfer and the formation of compression and rarefaction regions.
3
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What is necessary for us to see objects around us?
Light is necessary to see objects; it reflects off surfaces and enters our eyes.
4
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Why can't we see objects in a dark room?
In a dark room, there is no source of light; therefore, no light reflects off objects for our eyes to detect.