Therapeutic Ultrasound

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Questions and Answers

What is the frequency range of sound waves within the audible range?

  • 10 Hz to 15,000 Hz
  • 20 Hz to 50,000 Hz
  • 20 Hz to 20,000 Hz (correct)
  • 30 Hz to 25,000 Hz

How is ultrasonic energy produced in therapeutic ultrasound?

  • It is produced from nuclear energy
  • It is produced from heat energy
  • It is produced from chemical reactions
  • It is produced from electrical energy that is transformed into mechanical energy (correct)

What is the typical frequency range of ultrasound used in physical therapy?

  • 2 to 6 MHz
  • 0.75 to 3 MHz (correct)
  • 1 to 5 MHz
  • 0.5 to 2 MHz

What is the production of ultrasound based on?

<p>A phenomenon known as piezoelectric effect (D)</p> Signup and view all the answers

What distinguishes ultrasonic energy from sound waves?

<p>Ultrasonic energy has a higher frequency than sound waves (B)</p> Signup and view all the answers

What is the typical frequency range of ultrasound used in physical therapy?

<p>0.75 - 3 MHz (B)</p> Signup and view all the answers

How is ultrasonic energy produced in therapeutic ultrasound?

<p>From electrical energy transformed into mechanical energy (A)</p> Signup and view all the answers

What distinguishes ultrasonic energy from sound waves?

<p>Higher frequency (B)</p> Signup and view all the answers

What is the production of ultrasound based on?

<p>Phenomenon known as piezoelectricity (C)</p> Signup and view all the answers

What is the frequency range of sound waves within the audible range?

<p>20 - 20,000 Hz (D)</p> Signup and view all the answers

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