Which row of the table is correct for both infrasound radiation and infrared radiation?
Put a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 4 - 2011 - Paper 1
Question 4
Which row of the table is correct for both infrasound radiation and infrared radiation?
Put a cross (X) in the box next to your answer.
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Worked Solution & Example Answer:Which row of the table is correct for both infrasound radiation and infrared radiation?
Put a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 4 - 2011 - Paper 1
Step 1
Which row of the table is correct for both infrasound radiation and infrared radiation?
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Answer
The correct row is B. Infrasound is classified as transverse while infrared is classified as longitudinal.
Step 2
State the amplitude of this sound wave.
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Answer
The amplitude of the sound wave is 5 cm.
Step 3
Describe how infrasound differs from ultrasound.
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Answer
Infrasound consists of sound waves with frequencies below the lower limit of human audibility (below 20 Hz), while ultrasound comprises sound waves with frequencies above the upper limit (above 20 kHz). Additionally, infrasound waves travel longer distances and can be used in monitoring geological activities, while ultrasound is commonly utilized in medical imaging and industrial applications.
