Define the term ultrasound.
State how the speed of sound in a solid (such as bone) compares to the speed of sound in a liquid (such as soft tissue).
X-rays are high-frequency electromagnetic waves. State the speed of X-rays in a vacuum.
Describe three physical differences between ultrasound waves and X-rays as used in medical imaging.
295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.