Modeling Light Waves

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Electromagneic Waves come from what kind of sources

Visible and Invisible light sources

Electromagentic waves wit longer wavelength have lower/higher frequencies. Electromagnetic waves wit shorter wavelenths have XXX frequencies

lower/higher

As sound wave, frequency determines XXX

pitch

Light moves XXX through the air and more XXX through water

quickly, slowly

These are in decreasing order of wavelengths

radio (lowest), microwaves, infared, visible ligt, ultraviolet light, X rays and gamma rays (highests)

longest wavelength color

red

The change of speed of te light is usually what caused the wave to XXX as it passes trough the boundary

refract/Bend

trasmit

to allow to pass through

refract

to bend or change direction of a wave

reflect

to bounce back

transmit

to pass through a medium

What color as the shortest wavelength

Blue/Violet

Violet waves are refracted or bent at a great angle than red waves. T or F

True

Waves are measured by what three things?

amplitude, wavelength, frequency

Energy of a wave is porportional to the square of the xXXX

ampltude

Visible light is the only part of the electromagnetic spectrum human eyes can detect T or F

True

Mechnical Waves needs a mediu in which to travel (T/F)

True (Sound or water Waves

transparent

(adj.) allowing light to pass through; easily recognized or understood; easily seen through or detected

Prism

A piece of glass that seperates white light into colors of the spectrum.

Color

A specific frequency or wavelength of visible light

transverse wave

A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling

Brightness

Amplitude or height of a wave measured from the crest to midway between the crest and trough

When we use the wave model of light we can describe he qualities of that light. What are the qualities of that light? (2)

Color-wavelength and Brightness (amplitude)

Electromagnetic waves do or do not need a medium

DO NOT

When water waves pass through a narrow slit in a barrier they spread out rapidly. This is known as ?

Diffraction

A waves frequency and the amount of energy transferred by the way, the amount of energy transferred by waves in a given time is porportional its frequency. This means if the waves frequency DOUBLES the amount of energy being transferred by the WAVE XXX?

Doubles

light energy

Energy in the form of moving waves of light Park of the electromagentic space

Waves are distinct from other energy transport systems because they can transport energy w/o the need to transport matter

Example: A bat transfers energy to a ball, the ball is transported to a new position some distance way.

Name examples of how refraction is used

Eye Glasses, telescropes, microscropes, prisms

What is another way to measure electromagneetic waves by its XX?

Frequency

wavelength

Horizontal distance between the crests or between the troughs of two adjacent waves

Color of light can be desribed using its wavelenght. Red light has the longest or shortest wavelength.

Longest

high amplitude= XXX

Louder the sound

These waves transfer energy through a medium

Mecanical waves

Do Electromagenic waves need a medium to travel

No

Are amplitude and frequency connected

No Adjusting amplitude does not cause a change in a waves wavelength or frequency

Absorption

Not all light is reflected or scattered. Black abosrbs all light.

Frequncy

Number of wavelength that pass a fixed point each second , measured in hertz

Diffraction

Occurs when an object causes a wave to change direction and bend around it

light can be modeled as _____ or _____

Particle and as a wavve

The amount of energy transferred by waves in a given time is XXX to its frequency

Porportional

Angel of incidence equals the angle of reflection

Reflection

Most common observed wave behavior

Reflection

Dispersion

Refraction causing the separation of white light into its various color wavelength

This is a XXX wave

TRansverse

Refraction

The bending of a wave as it passes at an angle from one medium to another

Reflection

The bouncing back of a wave when it hits a surface through which it cannot pass.

Frequency corresponds to pitch and energy

The higher the sound, the higher the wave frequency is and the more energy it has

Being able to model a reflected light wave allows us to calculate the angle of incidence as well as the angel of reflection

This is important for Solar Panels so tey capture as much light as possible.

Waves work in the same way as oscillation

Traveling along with an energy transfer.

A wave can be transmitted through a boundary, meaning it passes through the boundary from one medium to another. Most boundaries, part of the wave is reflected and part is transmitted. T of F

True

Absorption occurs when all of some of the light energy from the light wave is transferred from one medium to another. T or F

True

Colored surfaces absorb al lwavelengths except for the color they are reflecting T or F

True

Somest light waves can pass through a medium without being refracted such as glass T or F

True

longitudinal wave

a wave in which the particles of the medium vibrate parallel to the direction of wave motion

Light waves are a combination of XXX and XXXX energy that travel as particles called XXXX.

electric, magenetic, photons

Light is made up of XXXX that do not need a medium in which to travel

electromagentic waves

visible light

electromagnetic waves that are visible to the human eye

How is scattering different from reflection?

scattered light goes back out in all directions. White surfaces such as walks, scatter light in all the colors that strike them.

low amplitude

soft sound

law of reflection

the angle of incidence is equal to the angle of reflection

spectrum

the band of colors produceed when light is separated into its component wavelengths

Amplitude

the height of a wave's crest

Frequency

the number of complete wavelengths that pass a point in a given time. Measured in hertz.

freqency

the number of wavelength that pass by a point each second

Air is a relatively fast medium T/F

true

shortest wavelength color

violet

A sound wave, determines the XXX

volume

Reflection of light

when light bounces off an object


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