Science 8 Wave's & Light Flashcards
A scientist who studies light and light technology
Spectroscopist
When a light bounces off an object
Reflect
When a object takes in the light
Absorb
When a light passes through an object
Transmit
When the light scatters through an object
Refract
What does it mean when purple is the closest to a light
That it is high frequency
What does it mean when red is the closest to a light
That it is low frequency
What unit are waves measured in?
Meters
A disturbance that transfers energy from place to place.
Wave
The material waves travel through (can be solid liquid or gas)
Medium
A wave that needs a medium to travel.
Mechanical Waves
A wave that can travel through an empty space.
Electromagnetic Waves
What type of wave is a sound wave
Longitudinal
What type of wave is a seismic wave
Mechanical Wave (Also Surface)
What type of waves is a light wave
Transverse
A type of wave that perpendicular to the wave direction
Transverse
A type of wave that is parallel to the direction the wave direction
Longitudinal
A combo of longitudinal and transverse waves
Surface
The highest part of a transverse wave
Crest
The lowest part of a transverse wave
Trough
What type of wave is an x-ray?
Transverse
What type of wave is a visible light?
Transverse
What type of wave is a radio wave?
Transverse
The location where the particles are closest in a longitudinal wave.
Compression
The location where the particles are farthest in a longitudinal wave.
Rarefaction
What type of wave is an ultra sound wave
Longitudinal
What type of wave is a slinky wave
Longitudinal
Where does energy travel in a surface wave?
Along the surface of a medium.
What type of wave is an ocean wave?
Surface Wave
What type of wave are ripples in water?
Surface Wave
The max distance a wave moves away from the rest position and the measurement of displacement.
Amplitude
The distance between 2 corresponding parts of a wave
Wavelength
The number of waves that pass by in a certain amount of time.
Frequency
The distance a wave travels in a given amount of time.
Speed
A higher wavelength, will result in a lower ___
Frequency
The place on a wave where the particles are not moving.
Rest Position
Why is there an increase in skin cancer in Australia?
Because the sun is being absorbed by the DNA within people’s skin cells.
The Band Of Colors that is in light
The Color Spectrum
The order of types of light in the electromagnetic spectrum from lowest energy to highest energy
Radio, Microwave, Infrared Visible, UV, X-Ray, Gamma Ray
What unit is frequency measured in?
Hertz
Does frequency affect wavelength?
Yes
Does amplitude affect wavelength?
No
Does amplitude affect wave speed?
No
Does frequency affect wave speed?
No
Light travels in a ____ line
Straight
What protects our genetic material from skin cancer?
Melanin
Something that provides light
Light Source
In a sound wave, A higher amplitude, will result in a higher ___
Sound
In a sound wave, A higher frequency, will result in a higher ___
Pitch
For sound, it will travel faster in high temperature, but slow in __
Low Tempature
A ratio that compares 2 quantities
Rate
The transfer in energy in electromagnetic waves
Radiation
Particles of light energy
Photons
When this goes up, the other thing also goes up is an example of
Direct relationship
When this goes up this thing goes down is an example of
Inverse relationship
What do sound waves need to travel?
Matter
Higher amplitude will result in higher ___
Light
What to hertz represent
The amount of waves per second
What does Light become when it is absorbed
Thermal energy
All of the colors mixed
White light
