GCSE Edexcel Physics Ultrasound: Ultrasound from a fishing boat i

Question

Ultrasound from a fishing boat is used to find fish.

(a) (i) Which of these is correct for ultrasound waves?
Put a cross (X) in the box next to your answer.

A  ultrasound waves have a frequency above 20 000 Hz
B  ultrasound waves have a frequency below 20 Hz
C  ultrasound waves have a wavelength above 20 000 Hz
D  ultrasound waves have a wavelength below 20 Hz

(ii) Complete the sentence by putting a cross (X) in the box next to your answer.
The system that uses ultrasound to find fish is called

A  fibre optics
B  satellite transmission
C  sonar
D  thermal imaging

Ultrasound from a fishing boat is used to find fish - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

Worked Solution & Example Answer:Ultrasound from a fishing boat is used to find fish - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1

Which of these is correct for ultrasound waves?

The system that uses ultrasound to find fish is called

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