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18 questions
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  • Q1
    A balloon is rubbed with a cloth. The balloon becomes positively charged. Why?
    The balloon has gained positive charge from the cloth.
    The balloon has lost negative charge to the cloth.
    Protons have moved.
    The cloth has gained positive charge from the balloon.
    30s
    P3.1c
  • Q2
    2 objects are rubbed together so that they build up a static charge of electricity. Which statement is NOT true
    The 2 charged objects will have electric fields around them.
    Electrons must have transferred from one object to the other.
    The 2 charged objects will be attracted to each other.
    The 2 objects must be conductors for static charge to build up.
    30s
  • Q3
    What are the units of charge?
    coulombs (C)
    amperes (A)
    volts (V)
    ohms (Ω)
    30s
  • Q4
    What are the units of current?
    ohms (Ω)
    coulombs (C)
    amperes (A)
    volts (V)
    30s
  • Q5
    What is the definition of electric current?
    How fast metal ions move
    How fast electricity moves
    The flow (or movement) of charge
    The flow (or movement) of subatomic particles
    30s
  • Q6
    What piece of equipment is used to measure current?
    ammeter
    voltmeter
    resistor
    coulometer
    30s
  • Q7
    What are the units of potential difference?
    volts (V)
    coulombs (C)
    amperes (A)
    ohms (Ω)
    30s
  • Q8
    What are the units of resistance?
    ohms (Ω)
    amperes (A)
    coulombs (C)
    volts (V)
    30s
  • Q9
    Which of these equations can be used to calculate current?
    current = time/charge
    current = charge x time
    current = charge/time
    30s
  • Q10
    Which of these equations can be used to calculate potential difference (sometimes called voltage)?
    potential difference = energy/charge
    potential difference = charge/energy
    potential difference = charge x energy
    30s
  • Q11
    Which of these equations can be used to calculate resistance?
    resistance = potential difference/current
    resistance = current/potential difference
    resistance = current x potential difference
    30s
  • Q12
    What piece of equipment is used to measure potential difference?
    coulometer
    voltmeter
    ammeter
    resistor
    30s
  • Q13
    What piece of equipment is used to measure current?
    voltmeter
    ammeter
    resistor
    coulometer
    30s
  • Q14
    What statement is true about current in a series circuit?
    Current is shared between the difference pathways in a series circuit.
    Current is used up by components, such as bulbs.
    It has the same value at any point in the circuit.
    Current is shared between components.
    30s
  • Q15
    What statement is true about current in a parallel circuit?
    Current is used up by components, such as bulbs.
    Current is shared between components.
    Current is shared between the difference pathways in a parallel circuit.
    Current is the same on the difference pathways in a parallel circuit.
    30s

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