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9th grade Physics

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
show solids, liquids and gases.  
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How are mechanical waves created?   show
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what direction does a transverse wave travel?   show
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what direction does a longitudinal wave travel?   show
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What direction does a surface wave travel?   show
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show crest  
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What is the period of a wave?   show
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what are the two formulas for the speed of a wave?   show
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how do you measure the amplitude of a transverse wave?   show
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show the more energy a wave has the greater the amplitude.  
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what is the term that describes when a wave strikes a barrier and bounces back?   show
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How is reflection different from refraction and diffraction?   show
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does the angle light strikes a new medium affect refraction?   show
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show if the wavelength is too large compared to the opening or obstacle?  
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show constructive: creates a larger displacement destructive: creates a wave with a smaller displacement.  
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how is a standing wave formed?   show
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what type of wave are sound waves?   show
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which medium does sound travel the fastest in?   show
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how does a sonar work?   show
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what is resonance and what does it do to sound?   show
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what is the Doppler effect?   show
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show the middle ear.  
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how do electromagnetic waves vary?   show
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how do you calculate frequency of an electromagnetic wave?   show
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show has constructive and destructive interference.  
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how does light behave as a particle?   show
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show blue.  
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What happens to intensity as you move away from a light source?   show
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what is the full range of frequencies of electromagnetic radiation called   show
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show radio waves, microwaves, infrared radiation, visible light, uv ray, x rays gamma rays.  
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cell phones use what type of wave?   show
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show white  
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show dark  
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show it is transmitted  
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how does light interact with translucent material   show
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how does light interact with opaque?   show
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show reflected, absorbed or transmitted  
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show the process of white light separating into color.  
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show raindrops, the drops act like a prism so when the light enters it slows down and refracts.  
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what determines the color of an object?   show
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why do blue and yellow combine to produce white light?   show
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what are the primary colors of pigments, and what do the produce   show
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show green, red and blue- create all possible colors  
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what happens if a atom gains or looses and electron   show
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show the amount of charge the distance from the charge  
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show contact- Graff sphere, induction placing your hand around a doorknob but no contact- and friction- rubbing your hair on a balloon.  
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show an electric  
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what is the difference between a parallel and series circuit?   show
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show a material that makes charge easier to flow.- metal/copper  
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show a material that does not conduct charge well- rubber and wood  
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show thickness, temperature and lenght  
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show a thick, cool and short wire  
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show lots of resistance.  
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show potential difference/ voltage  
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show a voltage drop.  
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show v= r x i  
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what is the unit for electric power   show
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what is the unit of electrical energy ?   show
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show E= current x voltage  
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show ee= power x time  
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show correct wiring, grounding, fuses, circuit breaker and three prong plug.  
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show it monitors currents flowing and from an outer appliance  
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show produced by a changing voltage and current  
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show encodes information as a string of 1's and 0's  
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show strength signals change alternating currents into direct currents turning currents on and off..  
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what is a semiconductor?   show
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show it controls the strength and position of the beams to produce images.  
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Created by: vahajuddin
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