click below
click below
Normal Size Small Size show me how
Electromagnetic-mech
Term | Definition |
---|---|
Wave | A periodic disturbance in a solid,liquid, or gas as energy is transmitted through a medium. |
Medium | A physical environment in which phenomena occur. |
Mechanical Wave | A wave that needs a medium in which to travel. |
Transverse Wave | A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling. |
Longitudinal Wave | A wave in which the particles of the medium vibrate parallel to the direction of wave motion. |
Compression | Part of the longitudinal wave where the particles bunch up closer together. |
Rarefraction | Part of the longitudinal wave in which the particles expand and move apart. |
Electromagnetic Wave | A wave that consists of electric and magnetic fields that vibrate at right angles to each other. |
Reflection | The bouncing back of a ray of light,sound, or heat when the ray hits a surface that is does not go through. |
Refraction | The bending of a wave as the wave passes between the 2 substances in which the speed of the wave differs. |
Diffraction | A change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening. |
Transmission | The passing of light or other form of energy through matter. |
Absorption | In optics, the transfer of light energy to particles of matter. |