Ultrasound in Science
Explore the principles and applications of ultrasound technology with this comprehensive worksheet for Grade 9 science students.
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Ultrasound in Science
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. What is ultrasound?
Sound with frequencies below human hearing range.
Sound with frequencies above human hearing range.
Electromagnetic waves used for imaging.
Light waves used for medical diagnosis.
2. Which of the following is a common application of ultrasound?
Radio communication
X-ray imaging
Prenatal imaging
Microwave heating
3. Ultrasound waves are waves, meaning they require a medium to travel.
4. The reflection of ultrasound waves is used in medical imaging to create a of internal organs.
5. Bats use ultrasound for navigation and hunting.
True
False
6. The frequency of ultrasound waves is measured in Hertz (Hz).
True
False
7. Briefly explain how an ultrasound machine works to create an image.
8. Give two examples of non-medical applications of ultrasound.
Below is an image of an ultrasound machine. Based on your knowledge, label the main components.
