PractiseQuestion bank
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12 questions
SA-9702-WA1-0011 markL1 FoundationCalculatorProgressive waves
A wave has frequency 50 Hz and wavelength 0.40 m. Calculate its speed. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0041 markL1 FoundationCalculatorIntensity
The amplitude of a wave is doubled. State the factor by which its intensity increases.
Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0061 markL1 FoundationCalculatorProgressive waves
In a longitudinal wave, the particles of the medium oscillate
Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0081 markL1 FoundationCalculatorProgressive waves
An oscilloscope trace has a peak 2.5 divisions above the centre line. The Y-gain is 0.20 V div⁻¹. Calculate the amplitude of the signal. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0091 markL1 FoundationCalculatorIntensity
The amplitude of a wave is halved. State the factor by which the intensity changes.
Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0121 markL1 FoundationCalculatorIntensity
The intensity of a wave is defined as
Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0022 marksL2 StandardCalculatorProgressive waves
Two points on a progressive wave of wavelength 0.40 m are 0.10 m apart along the direction of travel. Calculate their phase difference, in degrees. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0032 marksL2 StandardCalculatorProgressive waves
On an oscilloscope, one cycle spans 4.0 divisions with the time-base at 2.0 ms div⁻¹. Calculate the frequency. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0052 marksL2 StandardCalculatorIntensity
A 60 W point source emits waves equally in all directions. Calculate the intensity at a distance of 2.0 m. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0071 markL2 StandardCalculatorProgressive waves
The phase difference between the centre of a compression and the centre of the next rarefaction in a sound wave is
Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0101 markL2 StandardCalculatorIntensity
The intensity from a point source is I at 2.0 m. State the intensity at 4.0 m as a fraction of I. Salam Academy Original Practice · Proposed mark scheme
SA-9702-WA1-0113 marksL3 ExamCalculatorProgressive waves
Two points 0.15 m apart along a sound wave have a phase difference of 60∘. The frequency is 400 Hz. Calculate the speed of the wave. Salam Academy Original Practice · Proposed mark scheme