P = Primary, S = Secondary.
Two types of seismic waves are body waves (P-waves and S-waves) and surface waves (Love waves and Rayleigh waves). Body waves travel through the Earth's interior, while surface waves travel along the Earth's surface.
Two types of waves are mechanical waves and electromagnetic waves. Mechanical waves require a medium (solid, liquid, or gas) to travel through, while electromagnetic waves can travel through a vacuum, such as outer space.
The two types of body waves are longitudinal and transverse waves. In seismology longitudinal waves are known as P-waves (P = primary as they are detected by seismometers before the other seismic waves) and transverse waves are known as S-waves (S = secondary). In longitudinal waves the material oscillates or moves backwards and forwards parallel to the direction of wave motion (a bit like someone opening and closing an accordion). In transverse waves, the material oscillates normal (at 90 degrees) to the direction of wave motion.
Microwaves and sound waves are similar because they are electromagnetic waves. The main difference between the two types of waves is the length of the wave. Sound waves are longer than microwaves.
Transverse and Compressional electromagetic waves Another opinion: No electromagnetic waves are compressional waves. They're all transverse. I think what the question was looking for is: -- Heat and visible light -- Radio waves and X-rays -- Ultraviolet and gamma rays etc.
A descriptive adjective
A descriptive adjective
.descriptive adjective
A compound word
The basics of Essay Writing by Nigel Warburton, and Essay Writing Made Easy by Stephen Mclaren are two recommended books on Descriptive Words for Essays.
Two words: radio waves.
Adjectives? Well, they're descriptive words. Like beautiful, nice, soft or terrible. :>
No, "radio waves" is not a compound word. It is a noun phrase made up of two separate words.
Descriptive and Inferential Statistics
limiting and descriptive
descriptive and inferential
The two areas of statistics are descriptive and inferential.