science: light and sound

sound properties

speed:343m/s in air faster in water or metal, amplitude: loudness, frequency: pitch

wavelength

distance between one peak of a wave to another. measured in meters.

longitudinal

direction of the vibration in the wave is horizontal to the direction the wave travels, e.g sound wave.

properties of light

travels in straight lines, speed: 3×810^8 m/s in a vacuum- slower in glass or water, intensity: amount of energy reaching the surface, color: depends on wavelength reflected.

amplitude

distance from the still position (midline) to the peak of the wave