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Ch.6 - Electronic Structure of Atoms
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 14th EditionCh.6 - Electronic Structure of Atoms문제 15
6장, 문제 15

Label each of the following statements as true or false. For those that are false, correct the statement. (d) Do electromagnetic radiation and sound waves travel at the same speed?

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1
Understand the nature of electromagnetic radiation and sound waves. Electromagnetic radiation includes light waves, radio waves, and X-rays, which are forms of energy that travel through space. Sound waves, on the other hand, are mechanical waves that require a medium (like air, water, or solids) to travel.
Recall the speed of electromagnetic radiation. In a vacuum, electromagnetic waves travel at the speed of light, which is approximately 299,792,458 meters per second (m/s). This is a fundamental constant in physics.
Consider the speed of sound waves. The speed of sound varies depending on the medium through which it travels. In air at room temperature, sound travels at approximately 343 meters per second (m/s). This speed is significantly slower than the speed of light.
Compare the speeds of electromagnetic radiation and sound waves. Given the vast difference in their speeds, electromagnetic radiation travels much faster than sound waves.
Conclude whether the statement is true or false. Since electromagnetic radiation and sound waves do not travel at the same speed, the statement is false. Correct the statement by noting that electromagnetic radiation travels at the speed of light, while sound waves travel at a much slower speed depending on the medium.

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Speed of Electromagnetic Radiation

Electromagnetic radiation, which includes visible light, radio waves, and X-rays, travels at the speed of light in a vacuum, approximately 3.00 x 10^8 meters per second. This speed can vary when passing through different media, but it remains significantly faster than sound.
추천 영상:
가이드 코스
01:02
Electromagnetic Radiation Example

Speed of Sound Waves

Sound waves are mechanical waves that require a medium (solid, liquid, or gas) to travel through. The speed of sound varies depending on the medium, typically around 343 meters per second in air at room temperature, which is much slower than the speed of electromagnetic radiation.
추천 영상:
가이드 코스
00:57
Speed of Light Formula

Comparison of Wave Speeds

When comparing the speeds of different types of waves, it is crucial to recognize that electromagnetic waves can propagate through a vacuum, while sound waves cannot. This fundamental difference leads to the conclusion that electromagnetic radiation and sound waves do not travel at the same speed.
추천 영상:
가이드 코스
00:57
Speed of Light Formula
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교과서 질문

State where in the periodic table these elements appear: (a) elements with the valence-shell electron configuration ns2np5 (b) elements that have three unpaired p electrons (c) an element whose valence electrons are 4s24p1 (d) the d-block elements [Section 6.9]

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교과서 질문

Label each of the following statements as true or false. For those that are false, correct the statement. (a) Visible light is a form of electromagnetic radiation.

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교과서 질문

Label each of the following statements as true or false. For those that are false, correct the statement. (c) X rays travel faster than microwaves.

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교과서 질문

Label each of the following statements as true or false. For those that are false, correct the statement. (b) Ultraviolet light has longer wavelengths than visible light.

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