N4/5 Waves

Diffraction

________ is the bending of waves around obstacles.

Sound levels

________ are measured in decibels (dB)

Law of reflection

________: The angle that the incoming ray makes with a flat mirror is always the same as the angle it is reflected at.

ultrasound scanner

A(n) ________ can be used to examine the inside of a patient.

There are 2 types of waves

TRANSVERSE & LONGITUDINAL

Ultrasounds are sounds above the range of human hearing (20 Hz

20,000 Hz)

Law of reflection

The angle that the incoming ray makes with a flat mirror is always the same as the angle it is reflected at