True false question
1. refraction occurs because waves change speed in a new medium. (true/false)
short answer questions
fill in the answer blanks with the correct answer.
3.
2. an echo is an example of the type of wave interaction called
fill in the blanks questions
fill in the answer blanks with the correct answer.
is the bending of waves when they enter a new medium at an angle.
occurs when waves spread out and travel around obstacles or
through openings in obstacles.
is the bouncing back of waves from a surface that they cannot pass
5.
through