Sound quiz
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Why do we hear thunder after seeing lightning?
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More questions about Sound
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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What sound has equal power at every frequency?
Answer: White noise
Why: It is named after white light, which mixes every color the way white noise mixes every audible pitch.
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What makes a flute and violin sound different on one note?
Answer: Timbre
Why: Both play the same basic frequency, but each adds its own blend of overtones on top, and the ear hears that blend as tone color.
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In which planet's air do high notes outrun low ones?
Answer: Mars
Why: Mars's thin carbon dioxide air gives sound two speeds, about 240 m/s for low notes and 250 m/s for higher ones.
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Which medical scan uses echoes to see inside the body?
Answer: Ultrasound
Why: The scanner times every returning echo, and the delay tells it how deep the reflecting tissue lies.
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What part of an acoustic guitar gives off most of its sound?
Answer: The body
Why: A string alone pushes too little air; it hands its energy through the bridge to the top, which works like a speaker cone.
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Where in the ocean can sound travel thousands of kilometers?
Answer: SOFAR channel
Why: In mid-latitude oceans sound is slowest about 1,000 meters down, so waves keep bending back into that layer instead of escaping.
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