What happens when a charged object approaches a neutral object?
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Electrostatics 200 pts
Attracts because the neutral object Rearranges its charges
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Electrostatics 200 pts
A conductor can obtain a temporary charge by?
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Electrostatics 300 pts
Polarization
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Electrostatics 300 pts
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What is conservation of charge?
Electrostatics 400pts
Charge is never created nor destroyed it is just separated and transferred to another object
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Electrostatics 400 pts Answer
Objects A receives a positive charge by rubbing against object B. What is the charge on object B?
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Electrostatics 500 pts
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Electrostatics 500pts Answer
Negative
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Electric Materials 100pts
Materials that allow the flow of electrons
Conductors
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Electric Materials 100 pts
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Electric Materials200 pts
Electric materials that restrict the flow of electrons.
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Electric Materials200ptsAnswer
insulators
Acetate rubbed with cotton gives acetate what kind of charge?
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Electric Materials 300 pts
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Electric Materials300 pts
Positive
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Vinyl rubbed with wool gives vinyl what Kind of charge?
Electric Materials 400
Negative
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Electric Materials400 ptsAnswer
A charged vinyl strip is brought near but does not touch a conductor, what is the charge at the far end of the conductor?
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Electric Materials500 pts
Negative
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Electric Materials500 ptsAnswer
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Electric Forces100 pts
What happens to the forcebetween two charges that are moved three times as far apart?
Decreases by a factorOf nine
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Electric Forces100 ptsAnswer
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What happens to the force between two charged conductors if the charge on both conductors are doubledand the distance between them decreases by a
factor of three ?
Electric Forces200pts
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Increases by 36 X
Electric Forces200ptsAnswer
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Electric Forces300pts
The unit of charge is called?
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Electric Forces300ptsAnswer
Coulomb
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What does the force between two electrons
depend on?
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The product of the electric charges divided by
the
Square of the Distance of the charges
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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?
2.5 N to the right
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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?
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They stay positively charged and apart.
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What type of charge is left on a electroscope if it is chargedby induction with a negatively charged object?
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Positive
What type of material is an electroscope made of?
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Conductor
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It must be grounded?
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What must be done to an electroscope to induce a positive charge before removing a negative charge?
What does the electroscope show when the electroscope leaves open?
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The electroscope opens dueTo repulsion?
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What is the unit for electric field?
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N/C
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What two properties must a test chargehave?
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1. Positive2. small
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What direction does the field lines take with respect to positive and negative charges?
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Away from positive chargesToward negative charges
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What is the electric field in a region a 1 uC test charge experiences a 200 NForce?
2 x 10 ^8 N/C
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In a region of charge. What does the electric field depend on?
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E = k Q / D2
Q The charge in the region D The distance from the test chargeTo the charge distribution.