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Ttansformers use ac so there will be the required |
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change in magnetic field for operation |
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A mixture of cyan and yellow pigments appears |
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What color }ight is transmitted by a piece of blue glass |
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The electrical force between charges depends only on the charges |
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magnitude and separation distancel |
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The natural frequency of an object depends on its |
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The quality of a musical note has to do with its |
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The shortest plane mirror in which you can see your entire image is |
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Compared to its average speed in air, the average speed of a beam of light in glass is |
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The average speed of light is greatest in |
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Wave interference occurs for |
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sound waves,light waves,water waves. |
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Compared to ultraviolet waves, the wavelength of infrared waves is |
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Magnetic field lines about a current-carrying wire |
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circle the wire in closed loops |
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Which of the following is not a transverse wave? |
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The approximate rarrge of human hearing is |
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Compared to a sound of 30 decibels, a sound of 60 decibels is |
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the_____________of sound a sound is the power carried per square meter. |
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______________ colors are any two colors that, when added, produce white light. |
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___________is the bending of an oblique ray of light when it passes from one transparent medium to another. |
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A/An_____________is the responce of a body when forcing frequency matchs its natural frequency. |
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A/AN_____________ is a partial tone whose frequency is an integer multiple of the fundamental. |
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in general, a state of balance.the state in which no net change of energy occurs. -the straight line that runs through the wavelength graph. |
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result of superposing different waves, ofton of the same wavelength. constructive ___________ resullts from crest to crest reinforcement. destructive _____________ = crest to through. -when to waves are present at the same time |
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periodic variaton in loudness of sound
-looks like this on a wavelength graph 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 |
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change in frequency of a wave of sound or light due to the motion of the source or the reciever. - circles move in a direction |
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distance between succesive crests, troughs, or identical parts of waves. |
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