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Waves, light and the electromagnetic spectrum
Quick questions on Sound and ultrasound - CCEA GCSE Physics
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is sound as a longitudinal wave?Show answer
Sound travels faster in solids and liquids than in air, because the particles are closer together and pass on vibrations more readily. In air it travels at about .
What is the hearing range?Show answer
The healthy human ear hears frequencies from about 20 Hz to 20000 Hz (20 kHz). Sound above this range is called ultrasound. The upper limit falls with age and after exposure to loud noise.
What is q1?Show answer
What type of wave is sound? [1 mark]
What is q2?Show answer
State the approximate range of human hearing. [1 mark]
What is q3?Show answer
A sonar pulse returns to a boat after being sent. The speed of sound in water is . Find the depth.
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