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Grade 9 Current, Voltage and Resistance Quiz

Quiz by Julia Malcolm

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12 questions
Show answers
  • Q1
    What is the unit for Q- Charge?
    Amperes (A)
    Coloumbs (C)
    Voltage (V)
    Ohms
    60s
  • Q2
    What is the name of the device that measures current?
    voltmer
    ammeter
    electrometer
    ohmmeter
    300s
  • Q3
    Complete the following sentence: When using an ammeter, it should be placed in series to measure the current through a component. A voltmeter should be placed in ______ to measure the potential difference across a component.
    series
    line
    parallel
    60s
  • Q4
    In the circuit diagram, where should another switch be placed so that both lamps can be turned on or off independently?
    Question Image
    A
    D
    B
    C
    60s
  • Q5
    At which point in the circuit – A, B, C or D – should an ammeter be placed to measure the total current flowing through this circuit?
    Question Image
    D
    A
    B
    C
    60s
  • Q6
    In the same circuit diagram, where should a switch be placed that would turn off both lamps at the same time?
    Question Image
    C
    A
    B
    D
    60s
  • Q7
    Is the following circuit, a series or parallel circuit?
    Question Image
    series
    parallel
    60s
  • Q8
    Which sentence below best describes the energy transfer in a battery (cell)?
    Chemical to electrical.
    Kinetic to electrical.
    Chemical to heat.
    Electrical to kinetic.
    60s
  • Q9
    Calculate the amount of current through an electric toaster if it takes 900 C of charge to toast two slices of bread in 1.5 min.
    30C
    10C
    10A
    30A
    120s
  • Q10
    What is the resistance of a lamp that draws 15A from a 240V circuit
    0.06 Ohms
    16 Ohms
    3600 Ohms
    120s
  • Q11
    If it takes a current of 10A for 300 s to boil a kettle of water requiring 360,000 J of energy. What is the potential difference across the kettle?
    3000C
    120V
    1200V
    12000V
    300s
  • Q12
    Calculate the current that flows through a hair dryer that uses 18000J of energy when it is plugged into a 120V outlet for 15 seconds.
    100A
    0.1A
    10A
    150C
    300s

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