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20 questions
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  • Q1
    the law of conservation of charge states that _________
    electric charge is not created or destroyed
    charge can be created and destroyed but no transferred
    charge is not created or destroyed or transferred from object to object
    the mass of all substances are equal
    300s
  • Q2
    elements that are shiny and good conductors of electricity are ______
    metals
    colloids
    metaloids
    nonmetals
    300s
  • Q3
    A ______ is a closed, conducting path
    ampere
    current
    circuit
    resistor
    300s
  • Q4
    ______________ is the tendency for a material to oppose the flow of electrons
    conduction
    resistance
    transistance
    induction
    300s
  • Q5
    positive charges flow from _______
    high-voltage areas to low-voltage areas
    insulators to conductors
    low-resistance areas to high - resistance areas
    low-voltage areas to high-voltage areas
    300s
  • Q6
    in which type of circuit does the charge have only one loop to flow through?
    open
    uniform
    series
    parallel
    300s
  • Q7
    in which type of circuit are there two or more branches for charge to move through?
    uniform
    parallel
    open
    series
    300s
  • Q8
    what is the standard voltage difference of electrical energy entering homes in the United States?
    12V
    120V
    1200V
    220V
    300s
  • Q9
    the purpose of fuses and circuit breakers is to ______
    prevent breaks in the circuit
    decrease the resistance
    prevent circuits from overheating
    allow circuits to be overloaded
    300s
  • Q10
    the rate at which electrical energy is converted to another form of energy is called_______
    energy transformation
    electrical power
    hydroelectricity
    transmission
    300s
  • Q11
    Electric Current in a circuit is measured in _______
    ohms
    amperes
    watts
    volts
    300s
  • Q12
    how much electrical energy is used by an appliance that draws 13A of current at a voltage difference of 200 V for 1hour?
    2.6 kWh
    15.38 W
    26 kWh
    2600W
    300s
  • Q13
    What is the current in a circuit if the voltage difference is 15V and the resistance is 15 ohms?
    225 amps
    0.0 amps
    0.1.0 amps
    30 amps
    300s
  • Q14
    Ampere is a unit of _________
    electric current
    potential difference
    power
    potential energy
    300s
  • Q15
    a battery can be used to convert _________ to electric energy
    chemical energy
    electric current
    metal particles
    electrons
    300s

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