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Electrical calculations

Quiz by Onyemachi Okoronkwo

Grade 6-8
Science
Next Generation Science Standards

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10 questions
Show answers
  • Q1
    What is the relationship between current and voltage?
    As current decreases, voltage increases
    As current increases, voltage decreases
    As current increases, voltage increases
    As current increases, voltage remains the same
    30s
  • Q2
    What is the relationship between voltage and resistance
    As voltage increases, resistance stays the same
    As voltage increases, resistance decreases
    As voltage increases, resistance increases
    As voltage decreases, resistance decreases.
    30s
  • Q3
    What is the definition of electric power?
    the rate at which other forms of energy is changed into electrical energy
    the rate at which electrical energy is converted into other forms of energy
    the rate at which electrical energy stays on
    the rate at which electrical energy improves
    30s
  • Q4
    Which of the following is a unit of power?
    ohms
    kilowatt
    volt
    amp
    30s
  • Q5
    What measurements are used in calculations involving both ohm's law and electric power?
    current and resistance
    resistance only
    current and voltage
    resistance and voltage
    30s
  • Q6
    What is the ratio of voltage to current called
    static
    energy
    charges
    resistance
    30s
  • Q7
    Why does a 60W bulb give off more light than a 40W bulb?
    because the 60W bulb is bigger than the 40W bulb
    because the 40W bulb uses more energy more quickly than the 60W bulb
    because the 40W bulb is bigger than the 60W bulb
    because the 60W bulb uses more energy more quickly than the 40W bulb
    30s
  • Q8
    A light bulb has a current of 13A flowing through it and the voltage is twice the amount of the current. What is the voltage on the light bulb?
    15V
    11V
    6.5V
    26V
    30s
  • Q9
    A current of 3A passes through a wire that has a resistance that is 3 times the amount of current. What is the voltage?
    1V
    9V
    3V
    6V
    30s
  • Q10
    The equation E=Pxt is used for which calculation?
    Electrode potential
    Electrostatic friction.
    Electrical energy
    Electric power
    30s

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