Waves Flashcards
Wave
a disturbance that transfers energy from one place to another without requiring matter to move the entire distance
Medium
A substance in which a wave moves
Mechanical wave
A wave such as a sound or seismic wave that transfers kinetic energy through matter
Transverse wave
A wave in which a disturbance moves at the right angles to the direction of the wave
Longitudinal wave
A type of wave in which the disturbance move in the same direction the the wave travels
Crest
the highest point of a wave
Trough
The lowest point of a wave
Amplitude
The maximum distance that a disturbance causes a medium to move from its rest position
Wave length
The distance from one crest to the next wave crest
Frequency
The number of waves that pass a fixed point in a given period of time
Reflection
The bouncing back of a wave after it hits a barrier
Refraction
The bending of light as it crosses a boundary between two mediums at an angle other than 90 degrees
Diffraction
The spreading out of waves as they pass through an opening or around the edges of an obstacle
Interference
The meeting and combining of waves; the adding or subtracting of wave amplitudes that occur as a wave overlaps
Electromagnetic spectrum
The range of all electromagnetic frequencies
Radiation
Energy that travels across distances in the form of electromagnetic waves
Electromagnetic wave
A type of wave such as a light wave or radio wave that does not require a medium to travel through a disturbance that transfers energy through a field
Radio waves
The part of the electromagnetic spectrum that consists of waves of the lowest frequencies
Microwaves
Part of the electromagnetic spectrum that consists of waves with a higher frequencies than radio waves but lower frequencies than infrared waves
Infrared light
Part of the electromagnetic spectrum that consists of waves with a frequencies between those of microwaves and visible light
Ultraviolet light
The part of the electromagnetic spectrum that consist of wave frequencies between those of microwaves and visible light and lower than x-rays
X-rays
The part of the electromagnetic spectrum that consists of waves with high frequencies and high energies; electromagnetic wave with frequencies ranging from 10 to the 16th to 10 to the 21st power hertz
Gamma rays
Part of the electromagnetic spectrum that consists of waves with the highest frequencies
Transmission
The passage of waves through a medium
Absorption
The disappearance of a wave into a medium. The energy transferred bay a wave is converted into another form of energy
Scattering
The spreading out of light waves in all directions as particles reflect and absorb the light
Polarization
A way of filtering light so that all of the waves vibrate in the same direction.
Prism
An optical tool that uses refraction of light to separate the different wavelengths that make up white light
Primary colors
Three colors of light (red, green, blue) that can be mixed to produce all possible colors
Primary pigment
Three colors of substances (cyan, yellow, and magenta) that can be mixed to produce any possible colors