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Welcome to Physics Jeopardy KEYBOARDING
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Final Jeopardy Question Electrostatics Electric Materials 100 Electricroscope Electric Field 500 400 300 200 100 200 300 400 500 Electric Forces
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Back Electrostatics 100 pts How do charges interact with each other?
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Like charges repel Opposite charges attract Back Electrostatics 100 pts Answer
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What happens when a charged object approaches a neutral object? Back Electrostatics 200 pts
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Attracts because the neutral object Rearranges its charges Back Electrostatics 200 pts
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A conductor can obtain a temporary charge by? Back Electrostatics 300 pts
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Polarization Back Electrostatics 300 pts
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Back What is conservation of charge? Electrostatics 400pts
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Charge is never created nor destroyed it is just separated and transferred to another object Back Electrostatics 400 pts Answer
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Objects A receives a positive charge by rubbing against object B. What is the charge on object B? Back Electrostatics 500 pts
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Back Electrostatics 500pts Answer Negative
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Back Electric Materials 100pts Materials that allow the flow of electrons
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Conductors Back Electric Materials 100 pts
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Back Electric Materials 200 pts Electric materials that restrict the flow of electrons.
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Back Electric Materials 200pts Answer insulators
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Acetate rubbed with cotton gives acetate what kind of charge? Back Electric Materials 300 pts
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Back Electric Materials 300 pts Positive
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Back Vinyl rubbed with wool gives vinyl what Kind of charge? Electric Materials 400
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Negative Back Electric Materials 400 pts Answer
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A charged vinyl strip is brought near but does not touch a conductor, what is the charge at the far end of the conductor? Back Electric Materials 500 pts
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Negative Back Electric Materials 500 pts Answer
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Back Electric Forces 100 pts What happens to the force between two charges that are moved three times as far apart?
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Decreases by a factor Of nine Back Electric Forces 100 pts Answer
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Back What happens to the force between two charged conductors if the charge on both conductors are doubled and the distance between them decreases by a factor of three ? Electric Forces 200pts
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Back Increases by 36 X Electric Forces 200pts Answer
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Back Electric Forces 300pts The unit of charge is called?
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Back Electric Forces 300pts Answer Coulomb
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Back What does the force between two electrons depend on ?
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Back The product of the electric charges divided by the Square of the Distance of the charges
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Back Three positive charges are separated by equal distances. If the force between The first two charges is 2 N what is the Force and direction on the third charge With respect to the other two charges?
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2.5 N to the right Back
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A positive strip touches the knob of the electroscope and then removed. What happens to the leaves when it is removed? Back
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They stay positively charged and apart. Back
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What type of charge is left on a electroscope if it is charged by induction with a negatively charged object? Back
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Positive
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What type of material is an electroscope made of? Back
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Conductor Back
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It must be grounded? Back
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What must be done to an electroscope to induce a positive charge before removing a negative charge?
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What does the electroscope show when the electroscope leaves open? Back
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The electroscope opens due To repulsion? Back
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What is the unit for electric field? Back
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N/C Back
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What two properties must a test charge have? Back
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1. Positive 2. small Back
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What direction does the field lines take with respect to positive and negative charges? Back
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Away from positive charges Toward negative charges Back
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What is the electric field in a region a 1 uC test charge experiences a 200 N Force?
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2 x 10 ^8 N/C Back
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In a region of charge. What does the electric field depend on?
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Back E = k Q / D 2 Q The charge in the region D The distance from the test charge To the charge distribution.
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When was the internet developed? Back
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1960’s Back
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