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Welcome to Physics Jeopardy Electrostatics Electric Materials Electric Forces Electricroscope Electric Field 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Final Jeopardy Question Electrostatics 100 pts How do charges interact with each other? Back Electrostatics 100 pts Answer Like charges repel Opposite charges attract Back Electrostatics 200 pts What happens when a charged object approaches a neutral object? Back Electrostatics 200 pts Attracts because the neutral object Rearranges its charges Back Electrostatics 300 pts A conductor can obtain a temporary charge by? Back Electrostatics 300 pts Polarization Back Electrostatics 400pts What is conservation of charge? Back Electrostatics 400 pts Answer Charge is never created nor destroyed it is just separated and transferred to another object Back Electrostatics 500 pts Objects A receives a positive charge by rubbing against object B. What is the charge on object B? Back Electrostatics 500pts Answer Negative Back Electric Materials 100pts Materials that allow the flow of electrons Back Electric Materials 100 pts Conductors Back Electric Materials 200 pts Electric materials that restrict the flow of electrons. Back Electric Materials 200pts Answer insulators Back Electric Materials 300 pts Acetate rubbed with cotton gives acetate what kind of charge? Back Electric Materials 300 pts Positive Back Electric Materials 400 Vinyl rubbed with wool gives vinyl what Kind of charge? Back Electric Materials 400 pts Answer Negative Back Electric Materials 500 pts 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 Answer Negative Back Electric Forces 100 pts What happens to the force between two charges that are moved three times as far apart? Back Electric Forces 100 pts Answer Decreases by a factor Of nine Back Electric Forces 200pts 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 ? Back Electric Forces 200pts Answer Increases by 36 X Back Electric Forces 300pts The unit of charge is called? Back Electric Forces 300pts Answer Coulomb Back What does the force between two electrons depend on? Back The product of the electric charges divided by the Square of the Distance of the charges 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? Back 2.5 N to the right Back A positive strip touches the knob of the electroscope and then removed. What happens to the leaves when it is removed? Back They stay positively charged and apart. Back What type of charge is left on a electroscope if it is charged by induction with a negatively charged object? Back Positive Back What type of material is an electroscope made of? Back Conductor Back It must be grounded? Back What must be done to an electroscope to induce a positive charge before removing a negative charge? Back What does the electroscope show when the electroscope leaves open? Back The electroscope opens due To repulsion? Back What is the unit for electric field? Back N/C Back What two properties must a test charge have? Back 1. Positive 2. small Back What direction does the field lines take with respect to positive and negative charges? Back Away from positive charges Toward negative charges Back What is the electric field in a region a 1 uC test charge experiences a 200 N Force? Back 2 x 10 ^8 N/C Back In a region of charge. What does the electric field depend on? Back E = k Q / D2 Q The charge in the region D The distance from the test charge To the charge distribution. Back When was the internet developed? Back 1960’s Back