A girl stands m from a cliff and claps. The speed of sound is m/s. Calculate the time before she hears the echo.
Salam Academy Original Practice · Proposed mark scheme
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12 questions
Sound travels m in s. Calculate the speed of sound.
Salam Academy Original Practice · Proposed mark scheme
Sound waves in air are
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A ringing bell is placed in a jar and the air is pumped out. The sound
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State the upper limit of human hearing, in Hz.
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Ultrasound is sound with a frequency
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A sound becomes louder but keeps the same pitch. Its
Salam Academy Original Practice · Proposed mark scheme
A higher-pitched note has a
Salam Academy Original Practice · Proposed mark scheme
A note of frequency Hz travels at m/s. Calculate its wavelength.
Salam Academy Original Practice · Proposed mark scheme
Sound travels fastest through
Salam Academy Original Practice · Proposed mark scheme
A shout echoes off a cliff and is heard s later. The speed of sound is m/s. Calculate the distance to the cliff.
Salam Academy Original Practice · Proposed mark scheme
A ship's sonar sends an ultrasound pulse to the seabed. The echo returns after s. Sound travels at m/s in seawater. Calculate the depth of the sea.
Salam Academy Original Practice · Proposed mark scheme