Edelman Physics for SPI (Chpt 2) Exam Questions And Answers.docx

Edelman Physics for SPI (Chpt 2) Exam
Questions And Answers
In diagnostic sonography, the term "media" refers to what?


A. PZT crystals
B. water
C. Coupling gel
D. Biologic tissue
E. transducer -
correct answer ✅D. Biologic tissue.


Reflections arising from structures in the body return to the
transducer and are processed into image.


True or False


All waves carry energy from one location to another. -
correct answer ✅True


What type of wave is a sound wave? -
correct answer ✅Sound is a mechanical wave in which the
particles in the medium move. The molecules in the medium,
vibrate back and forth from a fixed position.

, Edelman Physics for SPI (Chpt 2) Exam
Questions And Answers

True or False


Sound cannot travel through a vacuum. -
correct answer ✅True


Sound needs a medium where molecules are alternately
compressed and rarefied.


What do the terms compression and rarefaction mean? -
correct answer ✅Compression: Squeezed together
Rarefaction: Stretched apart.


True or False:


Sound travels in a varying line. -
correct answer ✅False.


Sound travels in a straight line.