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S8P4.a
Identify the characteristics of electromagnetic and mechanical waves
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. |
Refraction | 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. |