Unit 5-waves And Light Flashcards
(30 cards)
Material through which a wave travels.
Medium
Waves
Disturbance that transfers energy from one place to another.
Longitudinal wave
Particles move back and forth in the same direction that the wave travels, or parallel to the wave
The spring coils move up and down as the wave passes
Transverse wave
Mechanical waves
Waves that require a medium
Disturbances in electric and magnetic fields
Electromagnetic waves
Wavefronts
The peaks can be drawn as shapes ,shut as circles and spheres
The speed at which a wave travels
Wave speed
Amplitude
Measure of how far particles in the medium move away from their normal rest position.
Time period required for one cycle.
Wave length
Frequency
Tells you how many cycles occur in an amount of time, most commonly 1 s
Frequency is measured in hertz. So it’s like a measuring tool.
Hertz
Radiation
The transfer of energy as EM waves. EM=electromagnetic
The range of frequencies that EM wave can have.
EM spectrum
Infared
Has slightly longer wavelengths than red light.
Slightly shorter wavelengths than violet light
Ultraviolet
Transparent
Water that transmits light is transparent.
Materials that transfers light but does not let it pass strait throug
Translucent
Opaque
Does not let any light pass through them.
Transfer of light energy to matter
Absorption
Reflection
The bouncing of light of the surface
Change of a direction of wave as it passes to one medium to another at an angle.
Refraction
Sccatering
When lightis sent in many directions as it passes through a medium.
Feistier acne that transfers energy to one to another
Waves
