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Radio Waves, Microwave, IR Radiation, Visible Light, UV Radiation, X-rays, Gamma-rays
Correct order of EM Radiation with increasing frequency
Transverse
Electromagnetic waves are _____
Television, infrared, visible light, X-rays
Which of the following correctly lists electromagnetic waves in order from longest to shortest wavelength?
Gamma rays have greater energy than visible light for penetrating matter
Why are high-frequency gamma rays more dangerous to humans than visible light?
Gamma ray
Which type of EM radiation has the shortest wavelengths?
Global Positioning System
By using ______, you can determine your exact position and altitude on Earth.
Letter B
Which diagram represents electromagnetic energy with the shortest wavelength?
Wavelength
What part of a wave is shown at point 1
Trough
What part of a wave is shown at point 2
Amplitude
What part of a wave is shown at point 3
Crest
What part of a wave is shown at point 4
EM or Transverse Wave
What kind of wave is represented by this diagram?
Increases
As the frequency of a wave ____ the wavelength becomes smaller
Visible Light
____ has a shorter wavelength and higher frequency than infrared rays.
X rays
_____ shorter wavelength and higher frequency than UV-rays. It carries a great amount of energy
Photons
Light is made of little particles called _____
Straight path
Light can travel in a
Light
Is a form of EM Wave that is propagated perpendicular to the source of energy
Absorption
Of light energy is converted into some other form, such as thermal or heat energy
Refracted
Light when passes from one medium into another, it changes direction slightly this is called ______
Transmitted
Light can be _____, sometimes it passes through a certain matter.
Equal
Angle of incidence is to the angle of reflection
Bends away from normal
A ray of light when passing from glass to air, ________
lower speed
Light travels at a _____ in water than in air
same straight-line path
Light travels in the _______ while passing through different media.
Reflected rays
_______ are formed when light strikes the surface of an object
transmitted light
The ________ is the difference if incident light and absorbed light
Index of Refraction (n)
______ is the ratio of the speed of light in a vacuum and the speed of light in the material
Always greater than 1
The indices of refraction of different materials are always ______
Wavelengths
White light is actually a combination of several different ____ of light traveling together.
Red
Which has the longest wavelength?
Violet
Which has the shortest wavelength?
White Light
All the colors in the visible spectrum put together will form
Rays
Light travels in straight paths called ___.
Wave-particles
Sir Issac Newton describe light as ___.
Dispersion, Refraction, Reflection
The particle theory of light can explain the following phenomena ______.
Refraction
Light beam changes its direction when it strikes a boundary between air and water.
Frequency
When light crosses a boundary between air and water, the following quantity of light remains the same _____
Red
Sun rays fall on a grass prism. What light ray will be refracted the least?
Reflected
Light that bounces off an object is
Disappears
A student conducts an investigation to determine the focal length of a convex lens. She holds the lens in front of her and looks through it at a distant object. She slowly moves the lens towards her eye. She knows she is holding it at the focal length when the image
Diverging
A lens is used to produce a virtual image that is smaller than the object the lens must be a _ lens
Convex mirror and concave lens.
Identify the list below that contains items that diverge light rays.
Total Internal Reflection
also the principle behind fiber optics.
ROYGBIV
Is a way of remembering the colors of the visible spectrum.
A Concave Lens (diverging)
thinner in the middle than at the edges and spreads the light passing through it.
transmitted, reflected, or absorbed
When light or sound waves hit an object, they can be _______, _______ and _______
Light travels to you faster than sound.
Why do you see lightning before hearing thunder
A Convex Lens (converging)
is thicker in the middle than at the edges and focuses the light passing through it.
Speed, Direction. The change in speed causes it to bend.
When light changes ___, it also changes ____.
300,000 km/s
All electromagnetic waves travel at ________ through a vacuum.
look identical to images formed by flat mirrors.
Images formed by spherical mirrors will ___
bends
Light ____ when it travels from air into water (Slower)
Bending of light depends on the medium and the density of the medium
color of light it reflects.
The color of an object is really the ___
Electromagnetic waves
are made by vibrating electrical charges that can travel through matter.
same electric charge
Particles with the _____ repels each other
opposite charge
Particles with the _____ attract each other
vibrating electrical charges that can travel through matter.
Electromagnetic waves are made by ________
Note 
Flashcard (53)