Ultrasound Physics Worksheet
A Grade 10 science worksheet covering the principles, applications, and safety of ultrasound technology.
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Ultrasound Physics Worksheet
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Read each question carefully and provide your best answer. Show all your work for calculations.
1. Which of the following best describes ultrasound waves?
Electromagnetic waves with frequencies above human hearing.
Sound waves with frequencies above human hearing.
Sound waves with frequencies below human hearing.
Light waves used for medical imaging.
2. The principle behind how an ultrasound machine creates images is related to:
Absorption of X-rays by different tissues.
Reflection of sound waves at tissue boundaries.
Emission of radiation from radioactive isotopes.
Magnetic resonance imaging.
3. The human ear can typically detect sound frequencies between 20 Hz and Hz.
4. Ultrasound waves are generated by a transducer, which uses the effect to convert electrical energy into mechanical vibrations.
5. The gel used during an ultrasound examination helps to eliminate air between the transducer and the skin, which would otherwise cause significant of the sound waves.
6. Ultrasound waves can travel through a vacuum.
True
False
7. The higher the frequency of an ultrasound wave, the deeper it can penetrate tissue.
True
False
8. Describe two common medical applications of ultrasound technology.
9. Explain why ultrasound is considered a safe imaging technique compared to X-rays.