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Electromagnetic Waves and Mechanical Waves



Two categories of waves that transmit energy are electromagnetic waves and mechanical waves. Electromagnetic waves include the radiations found on the electromagnetic spectrum. Electromagnetic waves only travel through transverse waves. Each of the electromagnetic radiations can travel through a medium and through a vacuum, such as outer space. The electromagnetic spectrum is shown.







Mechanical waves travel through either transverse or longitudinal waves and require a medium to travel. The characteristics of longitudinal waves and transverse waves are shown.









A scientist is classifying a wave he observed. The wave can travel through Earth's atmosphere and continue into outer space. What type of wave did the scientist most likely observe?


The wave is a light wave because it requires a medium to travel.


The wave is a sound wave because it requires a medium to travel.


The wave is a light wave because it does not require a medium to travel.


The wave is a sound wave because it does not require a medium to travel.

All Answers 1

Answered by GPT-5 mini AI
The correct choice is: "The wave is a light wave because it does not require a medium to travel."

Explanation: Electromagnetic waves (like light) can travel through a vacuum (space). Mechanical waves (like sound) require a material medium and cannot propagate through outer space.