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20 questions
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- Q1the law of conservation of charge states that _________electric charge is not created or destroyedcharge can be created and destroyed but no transferredcharge is not created or destroyed or transferred from object to objectthe mass of all substances are equal300s
- Q2elements that are shiny and good conductors of electricity are ______metalscolloidsmetaloidsnonmetals300s
- Q3A ______ is a closed, conducting pathamperecurrentcircuitresistor300s
- Q4______________ is the tendency for a material to oppose the flow of electronsconductionresistancetransistanceinduction300s
- Q5positive charges flow from _______high-voltage areas to low-voltage areasinsulators to conductorslow-resistance areas to high - resistance areaslow-voltage areas to high-voltage areas300s
- Q6in which type of circuit does the charge have only one loop to flow through?openuniformseriesparallel300s
- Q7in which type of circuit are there two or more branches for charge to move through?uniformparallelopenseries300s
- Q8what is the standard voltage difference of electrical energy entering homes in the United States?12V120V1200V220V300s
- Q9the purpose of fuses and circuit breakers is to ______prevent breaks in the circuitdecrease the resistanceprevent circuits from overheatingallow circuits to be overloaded300s
- Q10the rate at which electrical energy is converted to another form of energy is called_______energy transformationelectrical powerhydroelectricitytransmission300s
- Q11Electric Current in a circuit is measured in _______ohmsampereswattsvolts300s
- Q12how much electrical energy is used by an appliance that draws 13A of current at a voltage difference of 200 V for 1hour?2.6 kWh15.38 W26 kWh2600W300s
- Q13What is the current in a circuit if the voltage difference is 15V and the resistance is 15 ohms?225 amps0.0 amps0.1.0 amps30 amps300s
- Q14Ampere is a unit of _________electric currentpotential differencepowerpotential energy300s
- Q15a battery can be used to convert _________ to electric energychemical energyelectric currentmetal particleselectrons300s