Radio Waves, Microwave, IR Radiation, Visible Light, UV Radiation, X-rays, Gamma-rays
Correct order of EM Radiation with increasing frequency
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Transverse
Electromagnetic waves are _____
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Television, infrared, visible light, X-rays
Which of the following correctly lists electromagnetic waves in order from longest to shortest wavelength?
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Gamma rays have greater energy than visible light for penetrating matter
Why are high-frequency gamma rays more dangerous to humans than visible light?
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Gamma ray
Which type of EM radiation has the shortest wavelengths?
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Global Positioning System
By using ______, you can determine your exact position and altitude on Earth.
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Letter B
Which diagram represents electromagnetic energy with the shortest wavelength?
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Wavelength
What part of a wave is shown at point 1
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Trough
What part of a wave is shown at point 2
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Amplitude
What part of a wave is shown at point 3
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Crest
What part of a wave is shown at point 4
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EM or Transverse Wave
What kind of wave is represented by this diagram?
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Increases
As the frequency of a wave ____ the wavelength becomes smaller
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Visible Light
____ has a shorter wavelength and higher frequency than infrared rays.
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X rays
_____ shorter wavelength and higher frequency than UV-rays. It carries a great amount of energy
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Photons
Light is made of little particles called _____
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Straight path
Light can travel in a
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Light
Is a form of EM Wave that is propagated perpendicular to the source of energy
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Absorption
Of light energy is converted into some other form, such as thermal or heat energy
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Refracted
Light when passes from one medium into another, it changes direction slightly this is called ______
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Transmitted
Light can be _____, sometimes it passes through a certain matter.
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Equal
Angle of incidence is to the angle of reflection
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Bends away from normal
A ray of light when passing from glass to air, ________
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lower speed
Light travels at a _____ in water than in air
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same straight-line path
Light travels in the _______ while passing through different media.
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Reflected rays
_______ are formed when light strikes the surface of an object
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transmitted light
The ________ is the difference if incident light and absorbed light
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Index of Refraction (n)
______ is the ratio of the speed of light in a vacuum and the speed of light in the material
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Always greater than 1
The indices of refraction of different materials are always ______
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Wavelengths
White light is actually a combination of several different ____ of light traveling together.
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Red
Which has the longest wavelength?
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Violet
Which has the shortest wavelength?
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White Light
All the colors in the visible spectrum put together will form
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Rays
Light travels in straight paths called ___.
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Wave-particles
Sir Issac Newton describe light as ___.
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Dispersion, Refraction, Reflection
The particle theory of light can explain the following phenomena ______.
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Refraction
Light beam changes its direction when it strikes a boundary between air and water.
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Frequency
When light crosses a boundary between air and water, the following quantity of light remains the same _____
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Red
Sun rays fall on a grass prism. What light ray will be refracted the least?
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Reflected
Light that bounces off an object is
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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
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Diverging
A lens is used to produce a virtual image that is smaller than the object the lens must be a _ lens
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Convex mirror and concave lens.
Identify the list below that contains items that diverge light rays.
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Total Internal Reflection
also the principle behind fiber optics.
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ROYGBIV
Is a way of remembering the colors of the visible spectrum.
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A Concave Lens (diverging)
thinner in the middle than at the edges and spreads the light passing through it.
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transmitted, reflected, or absorbed
When light or sound waves hit an object, they can be _______, _______ and _______
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Light travels to you faster than sound.
Why do you see lightning before hearing thunder
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A Convex Lens (converging)
is thicker in the middle than at the edges and focuses the light passing through it.
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Speed, Direction. The change in speed causes it to bend.
When light changes ___, it also changes ____.
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300,000 km/s
All electromagnetic waves travel at ________ through a vacuum.
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look identical to images formed by flat mirrors.
Images formed by spherical mirrors will ___
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bends
Light ____ when it travels from air into water (Slower)
Bending of light depends on the medium and the density of the medium
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color of light it reflects.
The color of an object is really the ___
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Electromagnetic waves
are made by vibrating electrical charges that can travel through matter.
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same electric charge
Particles with the _____ repels each other
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opposite charge
Particles with the _____ attract each other
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vibrating electrical charges that can travel through matter.
Studied by 52 people
