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Waves Magnets Electr

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
What is a vibration that carries energy from place to place?   Wave  
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Which type of wave moves the matter up and down as it passes by?   Transverse Waves  
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Which type of wave moves the matter left to right as it passes by?   Longitidinal Waves  
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Which type of wave carries sound energy?   Longitudinal Waves  
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Which type of wave carries light energy?   Transverse Waves  
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Which type of wave carries the energies found on the electromagnetic spectrum?   Transverse Waves  
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What is a medium?   Matter  
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Which wave must have a medium in order to carry energy from place to place?   Longitudinal Waves  
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What do we call the tops of a transverse wave?   Crests  
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What do we call the bottoms of a transverse wave?   Troughs  
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The height, or distance from rest to crest, or rest to trough is called?   Amplitude  
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The distance from trough to trough or crest to crest is called?   Wavelength  
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The number of waves that pass a point in a second is the waves?   Frequency  
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When a wave bounces back, it has been   Reflected  
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What do we call a reflected sound wave?   Echo  
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What law states that the angle at which the wave hits the surface will be equal to the angle at which the wave bounces off of the surface?   Law of Reflection  
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Which type of mirror makes you look larger?   Convex  
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Which type of mirror makes you look smaller?   Concave  
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Which type of mirror does not make your image larger or smaller?   Plane  
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A wave that has been bent is said to have been   Refracted (Refraction)  
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What causes a wave to bend?   Moving through mediums of different densities slows or speeds up a moving wave  
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As light passes through a prism, it _______, and creates a rainbow   Refracts  
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What describes waves that can pass through a peice of glass?   Transmit  
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An object that blocks all light from passing through it is said to be   Opaque  
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An object that allows all light to pass through it is said to be   Transparent  
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An object that allows only some light to pass through it is said to be   Translucent  
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A piece of glass is:   Transparent  
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A peice of wax paper is:   Translucent  
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A peice of wood is:   Opaque  
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Objects that create their own light are said to be   luminous  
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Objects that do not make their own light, rather they reflect light, are said to be   Illuminated  
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The sun, a lightbulb and a fire are   luminous  
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The moon, a human, and a table are:   illuminated  
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Which wave characteristic determines the lights brightness?   Amplitude  
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What colors make up white light?   ROY G BIV  
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Which color of light has the longest wavelength?   Red  
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What determines the color of an opaque object?   The color it reflects  
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Why is a blue shirt blue?   reflects blue light  
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What colors does a black shirt reflect?   NONE  
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What color does a white shirt reflect?   ROY G BIV (all)  
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What determines the color of a transparent object?   color it transmits  
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What do we call transparent objects that only transmits ONE color?   Filter  
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Which electromagnetic wave carries the most energy?   Gamma waves  
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Which electromagnetic wave can be used to diagnose broken bones?   X rays  
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What part of a sound (longitudinal) wave is made up of tightly packed atoms?   compression  
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What part of a sound (longitudinal) wave is made up of atoms spaced far apart?   rarefraction  
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Will sound travel faster through solids, liquids, or gases?   Solids  
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Why does sound move faster through denser matter?   Atoms are closer  
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What wave property controls the pitch of a sound?   Frequency  
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What wave property controls the loudness of a sound?   Amplitude  
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What do we call the sudden change in pitch of a sound as it moves past a still object?   Doppler Effect  
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How many poles do magnets have?   2  
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What do we call the area around a magnet in which the magnetic forces work?   Magnetic Field  
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Where are magnets the strongest?   Poles  
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Like magnetic poles. .   repel  
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unlike magnetic poles. . .   attract  
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In what direction does electricity always flow?   negetive -> positive  
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What do we call the flow of electrons?   electricity  
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What are three things needed in order to create a circuit?   source of electrons, load (something to use electrons) & pathway (wire)  
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What type of circuit has only one pathway for the electrons to flow?   series  
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What type of circuit has two or more pathways for the electrons to flow?   parallel  
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What do we call the build up of electrons on a surface?   static electricity  
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What creates this build up of electrons?   friction  
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What types of materials allow electrons to flow through them easily?   conductors  
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What types of materials do NOT allow electrons to flow through them easily?   insulators  
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What are two differences between sound and light?   1.Light travels faster than sound2.Sound needs a medium to travel and light does not  
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What is a complete, closed path through which electric charges can flow?   Circuit  
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How can you re-magnetize a magnet?   1.Stroke it with a strong magnet2.Runing an electric current through it  
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