Science233

Question 1

Mechanical Wave

Answer 1

A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.

Question 2

Electromagnetic Wave

Answer 2

One of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Question 3

Crest

Answer 3

A comb or tuft of feathers, fur, or skin on the head of a bird or other animal.