Which phrase best defines the waves that travel through a medium and cause your eardrum to vibrate?

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Study for the California Science Test. Get ready for the 8th grade exam with flashcards and multiple choice questions, each question has hints and explanations. Prepare with confidence!

Multiple Choice

Which phrase best defines the waves that travel through a medium and cause your eardrum to vibrate?

Explanation:
Sound waves are mechanical waves that travel through a medium like air, water, or a solid. When something vibrates, it creates compressions and rarefactions in the surrounding matter, and these pressure changes move as a wave. When that wave reaches the ear, it makes the eardrum vibrate, and those vibrations are turned into nerve signals the brain interprets as sound. Light, radio, and ultraviolet waves are electromagnetic and can travel without a medium, so they don’t produce the vibrating eardrum we associate with hearing.

Sound waves are mechanical waves that travel through a medium like air, water, or a solid. When something vibrates, it creates compressions and rarefactions in the surrounding matter, and these pressure changes move as a wave. When that wave reaches the ear, it makes the eardrum vibrate, and those vibrations are turned into nerve signals the brain interprets as sound. Light, radio, and ultraviolet waves are electromagnetic and can travel without a medium, so they don’t produce the vibrating eardrum we associate with hearing.

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