<meta http-equiv="refresh" content="1; url=/nojavascript/"> Sound Waves ( Video ) | Physical Science | CK-12 Foundation
Dismiss
Skip Navigation

Sound Waves

%
Progress
Practice Sound Waves
Practice
Progress
%
Practice Now
The Difference Between Mechanical and Electromagnetic Waves
The difference between mechanical and electromagnetic waves is demonstrated using a vacuum, a bell jar, and cell phones.

Reviews

Please wait...
Please wait...

Original text