An oscillation is when an object moves in a repeating pattern. It does not travel, but ends up in the same place again and again. Another name for oscillation is harmonic motion.
A wave is a moving oscillation. Energy moves in waves.There are two large categories of waves: mechanical waves and electromagnetic waves.
A mechanical wave consists of a moving oscillation through matter (solid, liquid, or gas). It could be oscillating water molecules, oscillating air molecules, oscillating ropes and slinkies, or oscillating particles in rocks. If actual particles, things you can touch, are oscillating, it is a mechanical wave.
A electromagnetic wave consists of oscillating electric and magnetic energy. No physical thing that you can feel or touch is moving. It is only energy moving.
The most important example of a mechanical wave is a sound wave. But it is not the only mechanical wave!
The most important example of an electromagnetic wave is a visible light wave. But is it is not the only example of an electromagnetic wave!
For each wave, write what kind of wave it is, electromagnetic or mechanical.
There are seven types of electromagnetic wave. You should remember them in this order:
There is a very easy way to help you remember these waves:
Ranging Martians Invade Venus Using X-Ray Guns
Radio Micro Infrared Visible Ultraviolet X-Ray Gamma
Image of a raging martian invading venus using an X-ray gun:
For each example of a waves, indicate if they are electromagnetic waves or a mechanical waves.