Waves Test Review
Infrared
"Below Red" used in remote controls
Spectroscope
A device that breaks apart light into specific colors and splits them by length
Medium
A material in which a waves travels through
Color
A reflection of specific wavelengths of light
Sound Waves
A wave made of vibrations that carry sound through the air. Sound waves are mechanical so they require a medium and that medium is air.
Longitudinal Wave
A wave that moves parallel
Transverse Wave
A wave that moves perpendicular
Mechanical Wave
A wave that requires a medium through which to travel
Brightness
Affected by amplitude (color)
Electromagnetic Spectrum
All of the frequencies or wavelengths of electromagnetic radiation
Frequency
Amount of waves in a period of time
Doppler Effect in real life
An ice cream struck going past someone on a street
Doppler Effect
An observed change in the frequency of a wave when the source or observer is moving
UV
Found from natural sunlight
Piano
Hammers plucking the different lengths of strings to create different pitches
Amplitude
Height of a wave
Volume
How loud the sound is (Affected by amplitude)
Visible
How we see colors. Red is the longest and purple is the shortest.
Wavelength
Length of a wave
Wave Movement
Longitudinal Transverse
Trough
Lowest point of a wave
Diffracton
Occurs when an object causes a wave to change direction and bend around it
Gamma
Produced by radioactive elements. Used to treat cancer but can also caused cancer
Refraction
The bending of a wave as it passes at an angle from one medium to another
Reflection
The bouncing of a wave when it hits a surface through which it cannot pass
Pitch
The height of the tone as in high note or low note (Affected by frequency)
Constructive Interference
The interference that occurs when two waves combine to make a wave with a larger amplitude
Destructive Interference
The interference that occurs when two waves combine to make a wave with a smaller amplitude
Radio Waves
The longest wavelength in the spectrum, used in TV signals
Light Waves
There are many different types of light waves including radio waves, microwaves, infrared radiation, visible light, ultraviolet, x-rays, gamma rays
Crest
Top of a wave
X-Ray
Used in X-Ray scans in the body
Microwaves
Used in cell phones, wifi, and bluetooth
Trumpets
Vibration through buzzing lips and different valves
Nonmechanical Wave
Wave that doesn't need a medium to travel through
Why do different objects appear different colors?
the objects absorb the other colors of light and reflects the color it is
Instruments
use different strings, valves, and other things to create pitches of vibrations with different volumes
