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Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 2 - 2011 - Paper 1
Question 2
Complete the sentence by putting a cross (X) in the box next to your answer. Earthquakes can produce infrasound waves. Compared to normal sound waves, infrasound wav... show full transcript
Worked Solution & Example Answer:Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Physics - Question 2 - 2011 - Paper 1
Step 1
Compared to normal sound waves, infrasound waves always have a smaller
Answer
Infrasound waves are sound waves that are below the frequency range of human hearing, typically below 20 Hz. When comparing infrasound waves to normal sound waves (which can range from about 20 Hz to 20 kHz), infrasound waves will have a smaller frequency. Thus, the correct answer is:
☑ C frequency