physics.

Waves, Sound, and Light

Types of Waves

• Transverse Waves: Particle motion perpendicular to the wave direction.

• Longitudinal Waves: Particle motion parallel to the wave direction.

Sound

• Nature of Sound: Sound is a longitudinal wave that requires a medium to travel (solid, liquid, or gas).

• Properties of Sound: Includes pitch (frequency), loudness (amplitude), and timbre (quality).

• Speed of Sound: Varies depending on the medium; fastest in solids, slower in liquids, and slowest in gases.

Light

• Nature of Light: Light is an electromagnetic wave that can travel through a vacuum.

• Properties of Light: Includes reflection, refraction, diffraction, and dispersion.

• Electromagnetic Spectrum: Light is part of the electromagnetic spectrum, which includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Terminology

• Wave Frequency: The number of waves that pass a given point in one second.

• Wavelength: The distance between successive peaks of a wave.

• Amplitude: The maximum extent of a wave's oscillation from its rest position.