Platforms
Which is carried by waves?
Waves that move through matter only are called [___] waves. Waves that move through space are called [___] waves.
electromagnetic
mechanical
A longitudinal wave is a type of wave that transfers energy [___] to the direction of wave motion. A transverse wave, on the other hand, is a type of wave that transfers energy [___] to the direction of wave motion.
parallel
perpendicular
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Lesson 6.3 Origin and Evolution of the Universe
Instruction
Lesson 6.2 The Electromagnetic Spectrum