Waves

The length (in space) of one complete wave cycle, measured in distance units

Light with frequencies that humans can see Wavelength: red is long. Violet is short. Frequency: red is low. Violet is high.

The unit for the loudness of sound and is abbreviated dB

The peaks, or hoghest points, of a veryically vibrating transverse wave

A measure of how fast the wave energy moves from one place to another

The number of full cycles that happen each second, measured in cycles per second, or hertz (Hz)

A longitudinal wave with areas of high and low pressure, or density

A wave in which the direction or the vibration is parallel to the direction the energy travels

A disturbance that transports energy as it moves through space and time

Sound at 120 dB

How high or low the sound seems to a human ear

The entire range of frequencies of electromagnetic waves from very long radio waves to very short gamma rays

A reflection that looks like the image

The bouncing of light off of a surface

A vision problem in which a person cannot see distant objexts without correction because their eyeball is too long. Nearsightedness is corrected with diverging lenses.

0 dB, the softest sound a human can hear

A vision problem in which a person cannot see nearby objects without correction. Farsightedness is corrected with converging lenses.

Human perception of the intensity of a sound

The bending of a light ray’s direction of travel as it passes from one material to another

The valleys, or lowest points, of a vertically vibrating transverse wave

The amount of energy transporter by a wave, measured in decibels (dB)

A wave in which the direction of the vibration is perpendicular to the directioncthe energy travels

The material that carries a mechanical wave

The maximun displacement of a particle of the medium during a vibration (measured from non-vibrating position to one crest)