CK-12 Physical Science Concepts - For Middle School

http://www.ck12.org Chapter 5. Energy

FIGURE 5.80

This technology is used to examine internal organs and unborn babies without risk to the patient. You can see a
doctor using ultrasound in theFigure5.81. You can watch an animation showing how ultrasonography works at this
URL: http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000134&ptid=17.

FIGURE 5.81