80 likes | 198 Views
Waves. All notes provided by Alyse Consiglio of LaBrae Middle School. Wave. A disturbance that carries energy through matter or space Medium — the matter through which a wave travels. The actual medium is not moving; it just has energy moving through it. Name the Medium. Waves on a pond
E N D
Waves All notes provided by Alyse Consiglio of LaBrae Middle School
Wave • A disturbance that carries energy through matter or space • Medium — the matter through which a wave travels. • The actual medium is not moving; it just has energy moving through it.
Name the Medium • Waves on a pond • Water • Sound from speakers • Air • Seismic Waves • Earth
Waves that require a medium are called mechanical waves. • Electromagnetic waves do not require a medium.
Wave Movement • Waves travel from their point of origin equally in all directions. • Energy spreads out as it moves away from the point of origin, decreasing in intensity as it spreads.
Simple Harmonic Motion • A mass on a spring can bounce up and down forever (neglecting friction). • This repeating cycle is simple harmonic motion, or SHM.
Two Types of Waves • Transverse — Particles in medium move perpendicular to the movement of energy • Longitudinal — Particles in medium move parallel
Surface Waves • Move differently because they occur at the boundary between two media. • Particles move in circles.