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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-PX-EA-0011 markL1 FoundationCalculatorDecibels
Calculate the intensity level of a sound of intensity 1.0×10−61.0\times10^{-6} W m⁻². (I0=1.0×10−12I_0=1.0\times10^{-12} W m⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0041 markL1 FoundationCalculatorDecibels
State how many times more intense a 9090 dB sound is than a 6060 dB sound.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0051 markL1 FoundationCalculatorThe ear
The main function of the ossicles in the middle ear is to
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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0061 markL1 FoundationCalculatorThe ear
Hearing loss due to ageing usually affects first
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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0081 markL1 FoundationCalculatorDecibels
The dBA scale is used because it
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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-X011 markL1 FoundationCalculatorDecibels
Calculate the intensity level of a sound of intensity 1.0×10−91.0\times10^{-9} W m⁻². (I0=1.0×10−12I_0=1.0\times10^{-12} W m⁻²)

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-X041 markL1 FoundationCalculatorThe ear
In the ear, sound vibrations are converted to nerve impulses in the
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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0022 marksL2 StandardCalculatorDecibels
Calculate the intensity, in units of 10−410^{-4} W m⁻², of an 8080 dB sound.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0031 markL2 StandardCalculatorDecibels
Two identical machines each produce an intensity level of 8080 dB at a point. Calculate the total intensity level when both run.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-X022 marksL2 StandardCalculatorDecibels
Calculate the intensity in W m⁻² of a 100100 dB sound.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-X031 markL2 StandardCalculatorDecibels
One machine gives 7070 dB. Calculate the intensity level from ten identical machines.

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Salam Academy Original Practice · Proposed mark scheme
SA-PX-EA-0072 marksL3 ExamCalculatorThe ear
The ossicles multiply the force by 1.51.5, and the eardrum has 1515 times the area of the oval window. Calculate the factor by which the pressure increases.

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Salam Academy Original Practice · Proposed mark scheme